reorganize everything
This commit is contained in:
Dennis Gunia
@@ -0,0 +1,267 @@
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-GB" lang="en-GB">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>Features of the STM8 Simulator</title>
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</head>
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||||
|
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<body>
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<h1>Features of the STM8 Simulator</h1>
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|
||||
|
||||
<h2>Cycle Counts</h2>
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Instruction timings are correct and take into account pipeline overlaps
|
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and stall cycles. The only known exceptions are HALT, WFI and WFE which
|
||||
are either not yet implemented or, in the case of HALT, only partially
|
||||
and minimally implemented.
|
||||
|
||||
<h3>Notes on Documention</h3>
|
||||
|
||||
<h4>PM0044 Section 5.3 Pipelined execution examples</h4>
|
||||
<p>There are some errors in these tables. See the trace outputs in the
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<a href="#exanal">Example Analyses</a> section below for details.</p>
|
||||
|
||||
<h4>PM0044 Section 7.4 Instruction Set</h4>
|
||||
<p>The cycle counts shown for instructions in PM0044 section 7 are one less
|
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than the actual counts because the first decode cycle of an instruction
|
||||
normally overlaps with the last execution cycle of the preceding
|
||||
instruction.</p>
|
||||
|
||||
|
||||
<h3>Stall Cycle Detection</h3>
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||||
|
||||
<p>Error/warning event reporting of stall cycles is available should timings
|
||||
be important in your application.
|
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<pre>0> <font color="#118811">show error</font>
|
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Error: non-classified [on/ON]
|
||||
[...]
|
||||
Error: stm8 [off/OFF]
|
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Warning: pipeline [unset/OFF]
|
||||
Warning: decode_stall [unset/OFF]
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Warning: fetch_stall [unset/OFF]
|
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[...]</pre>
|
||||
|
||||
<p>These are off by default but may be enabled as required either as a group:
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||||
<pre>0> <font color="#118811">set error pipeline</font></pre>
|
||||
or individually:
|
||||
<pre>0> <font color="#118811">set error decode_stall on</font>
|
||||
0> <font color="#118811">set error fetch_stall on</font></pre>
|
||||
</p>
|
||||
|
||||
|
||||
<h3>Cycle and Pipeline Analysis</h3>
|
||||
|
||||
<p>The simulator is able to generate detailed analyses of execution showing timings
|
||||
for each instruction executed including pipeline overlaps and stalls. This is controlled
|
||||
via the <em>pipetrace</em> feature of the STM8 CPU module. The output is in the form
|
||||
of a self-contained HTML document that can be opened with a browser or imported into
|
||||
other application documentation.</p>
|
||||
|
||||
<p>To generate a pipeline analysis:</p>
|
||||
|
||||
<ul>
|
||||
<li>Set the title for the next pipetrace to be opened.
|
||||
<pre>0> <font color="#118811">set hw cpu pipetrace title "..."</font></pre>
|
||||
</li>
|
||||
|
||||
<li>Replace the embedded default styling with a stylesheet link to the given URL.
|
||||
<pre>0> <font color="#118811">set hw cpu pipetrace style "<i>url</i>"</font></pre>
|
||||
</li>
|
||||
|
||||
<li>Open the given file, write the header (including title and stylesheet) and
|
||||
continue writing the pipeline analysis as instructions are executed.
|
||||
<pre>0> <font color="#118811">set hw cpu pipetrace start "<i>path</i>"</font></pre>
|
||||
</li>
|
||||
|
||||
<li>Set folding of the analysis on (the default) or off. Folding causes the cycle
|
||||
count to be reset to zero (moving the output back to the left) after every
|
||||
pipeline flush (i.e. after every branch, jump or call). It is recommended you
|
||||
leave this on unless you have <em>very</em> wide paper or are single stepping
|
||||
and annotating the analysis between steps.
|
||||
<pre>0> <font color="#118811">set hw cpu pipetrace fold [on|off]</font></pre>
|
||||
</li>
|
||||
|
||||
<li>Pause writing the pipeline analysis. The output file remains open but nothing
|
||||
will be written to as instructions are executed.
|
||||
<pre>0> <font color="#118811">set hw cpu pipetrace pause</font></pre>
|
||||
</li>
|
||||
|
||||
<li>Insert the given text into the current pipeline analysis. The text is
|
||||
inserted verbatim and may contain HTML markup. If the output is not
|
||||
paused the cycle count for the analysis is set back to zero so that the
|
||||
next instruction output will be moved back to the left (the first cycle
|
||||
after the inserted text does however overlap the last cycle before the
|
||||
inserted text as normal).
|
||||
<pre>0> <font color="#118811">set hw cpu pipetrace data "<i>text</i>"</font></pre>
|
||||
</li>
|
||||
|
||||
<li>Resume a paused pipeline analysis. Instruction execution will update the
|
||||
analysis output again. Resuming a paused analysis resets the cycle count
|
||||
to zero so that the next instruction output is moved back to the left.
|
||||
(The next cycle may or may not overlap the last cycle before the pause
|
||||
depending on whether or not any instructions were executed while the
|
||||
output was paused.)
|
||||
<pre>0> <font color="#118811">set hw cpu pipetrace resume</font></pre>
|
||||
</li>
|
||||
|
||||
<li>Stop the pipeline analysis and close the output file. No further analysis will
|
||||
occur until a new analysis file is started.
|
||||
<pre>0> <font color="#118811">set hw cpu pipetrace stop</font></pre>
|
||||
</li>
|
||||
</ul>
|
||||
|
||||
<a name="exanal"></a>
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<h3>Example Analyses</h3>
|
||||
|
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<h4>Documented Examples</h4>
|
||||
|
||||
<p>These are taken from the examples in ST's “PM0044 Programming Manual”
|
||||
section “5.3 Pipelined execution examples” and are generated by
|
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the test <a href="test.asm">stm8.src/test/stm8-cycles/test.asm</a>
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using the “pipetrace”functionality described above.</p>
|
||||
|
||||
<p>Note that there are some errors in the examples in section 5.3. These are noted in
|
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the output below and the differences confirmed on HW.</p>
|
||||
|
||||
<ul>
|
||||
<li><a href="test.table3.html">
|
||||
PM0044 5.4 Table 3. Example with exact number of cycles
|
||||
</a>
|
||||
<li><a href="test.table6.html">
|
||||
PM0044 5.4.1 Table 8. Optimized pipeline example - execution from Flash
|
||||
</a>
|
||||
<li><a href="test.table8.html">
|
||||
PM0044 5.4.2 Table 6. Optimized pipeline example - execution from RAM
|
||||
</a>
|
||||
<li><a href="test.table10.html">
|
||||
PM0044 5.4.3 Table 10. Pipeline with Call/Jump
|
||||
</a>
|
||||
<li><a href="test.table12.html">
|
||||
PM0044 5.4.4 Table 12. Example of stalled pipeline
|
||||
</a>
|
||||
</ul>
|
||||
|
||||
<h4>Additional Examples</h4>
|
||||
|
||||
<p>The DIV instruction is special in that it takes a variable number of cycles and
|
||||
is interruptible.</p>
|
||||
|
||||
<ul>
|
||||
<li><a href="test.div.html">
|
||||
Examples of DIV execution
|
||||
</a>
|
||||
<li><a href="test.int_div.html">
|
||||
Examples of interrupted DIV execution
|
||||
</a> (not currently implemented)
|
||||
</ul>
|
||||
|
||||
<p>Other instructions, each run individually starting from an empty pipeline and
|
||||
showing the overlap with the following instruction.</p>
|
||||
|
||||
<ul>
|
||||
<li><a href="test.instrs.html">
|
||||
Examples of individual instruction execution
|
||||
</a>
|
||||
</ul>
|
||||
|
||||
<h3>Hardware Cycle Counting</h3>
|
||||
|
||||
<p>Actual cycle counts may be obtained from hardware for comparison using a combination
|
||||
of <a href="https://stm8-binutils-gdb.sourceforge.io">stm8-gdb</a>, openocd and an STLink
|
||||
or other openocd/SWIM compatible debugger. Set the master and CPU clocks to be equivalent
|
||||
and use one of the target's timers to count cycles.</p>
|
||||
<p>For instance:</p>
|
||||
<blockquote><pre>
|
||||
$ openocd -f interface/stlink.cfg -f target/stm8s003.cfg &
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||||
$ stm8-gdb
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||||
[...]
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||||
(gdb) target extended-remote :3333
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||||
|
||||
|
||||
(gdb) set $DM_CSR2 = 0x7f99
|
||||
(gdb) set $DM_ENFCTR = 0x7f9a
|
||||
|
||||
(gdb) set $CLK_CKDIVR = 0x50c6
|
||||
(gdb) set $CLK_PCKENR1 = 0x50c7
|
||||
|
||||
(gdb) set $TIM2_CR1 = 0x5300
|
||||
(gdb) set $TIM2_EGR = 0x5306
|
||||
(gdb) set $TIM2_CNTRH = 0x530c
|
||||
(gdb) set $TIM2_CNTRL = 0x530d
|
||||
(gdb) set $TIM2_PSCR = 0x530e
|
||||
|
||||
|
||||
(gdb) define cycles
|
||||
dont-repeat
|
||||
|
||||
# Freeze TIM2 when CPU is stalled by DM
|
||||
set {unsigned char}$DM_ENFCTR = 0xfd
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||||
|
||||
# Set HSIDIV = 0, CPUDIV = 0
|
||||
set {unsigned char}$CLK_CKDIVR = 0x00
|
||||
# Set TIM2 prescalar to 0 so f_CK_CNT matches f_MASTER (and hence f_CPU)
|
||||
set {unsigned char}$TIM2_PSCR = 0x00
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||||
|
||||
# Clear count and update config
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set {unsigned char}$TIM2_EGR = 1
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||||
set {unsigned char}$TIM2_CNTRH = 0xff
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||||
set {unsigned char}$TIM2_CNTRL = 0xff
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||||
|
||||
# Enable counter
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||||
set {unsigned char}$TIM2_CR1 = 0x01
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# Enable clock gate
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||||
set {unsigned char}$CLK_PCKENR1 = 0x20
|
||||
|
||||
# Set PC
|
||||
# N.B. Do not attempt to flush the decoder by writing to DM_CSR2. It upsets
|
||||
# openocd which is then unable to set breakpoints.
|
||||
set $pc = $arg0
|
||||
#set {unsigned char}$DM_CSR2 = 0x81
|
||||
|
||||
# Set a HW breakpoint, run, then clear
|
||||
monitor bp $arg1 1 hw
|
||||
cont
|
||||
monitor rbp $arg1
|
||||
|
||||
set $_tmp = {unsigned short}$TIM2_CNTR
|
||||
disass/r $arg0,$arg1
|
||||
printf "%u cycles\n", $_tmp
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||||
end
|
||||
|
||||
(gdb) document cycles
|
||||
Set PC to the first address, set a HW break at the second address,
|
||||
run and report how many cycles (as reported by $TIM2_CNTR) it took.
|
||||
The target is assumed to be halted initially.
|
||||
end
|
||||
|
||||
(gdb) monitor reset halt
|
||||
target halted due to debug-request, pc: 0x00008000
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||||
(gdb) x/3i 0x811c
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||||
0x811c: ldw X,#0xfc00 ;0xfc00
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||||
0x811f: ld A,#0x80 ;0x80
|
||||
0x8121: div X,A
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||||
(gdb) cycles 0x811c 0x8122
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||||
target halted due to debug-request, pc: 0x00008000
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||||
breakpoint set at 0x00008122
|
||||
|
||||
|
||||
Program received signal SIGTRAP, Trace/breakpoint trap.
|
||||
0x00008122 in ?? ()
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||||
Dump of assembler code from 0x811c to 0x8122:
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||||
0x0000811c: ae fc 00 ldw X,#0xfc00 ;0xfc00
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||||
0x0000811f: a6 80 ld A,#0x80 ;0x80
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||||
0x00008121: 62 div X,A
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||||
End of assembler dump.
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14 cycles
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||||
</pre></blockquote>
|
||||
|
||||
<p>Don't forget that there will be an initial pipeline fetch cycle
|
||||
before the first instruction can be decoded, there may be stall
|
||||
cycles, multiple instructions (mostly) overlap by one cycle (which is
|
||||
assumed in the timings given by PM0044), and you may have interrupts
|
||||
that should be disabled.</p>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
484
OperatingSystem/.unused/cmon/sdcc/share/doc/ucsim/stm8/test.asm
Normal file
484
OperatingSystem/.unused/cmon/sdcc/share/doc/ucsim/stm8/test.asm
Normal file
@@ -0,0 +1,484 @@
|
||||
; For an STM8S003
|
||||
|
||||
TIM4_CR1 =: 0x5340
|
||||
TIM4_IER =: 0x5343
|
||||
TIM4_EGR =: 0x5345
|
||||
TIM4_ARR =: 0x5348
|
||||
|
||||
|
||||
.macro codebndry
|
||||
.$.end =: .
|
||||
.bndry 4
|
||||
.$.diff =: . - .$.end
|
||||
. = . - .$.diff
|
||||
.rept .$.diff
|
||||
nop
|
||||
.endm
|
||||
.endm
|
||||
|
||||
.macro areabndry n
|
||||
.$.end =: .
|
||||
.bndry n
|
||||
.ifne . - .$.end
|
||||
. = . - 1
|
||||
.byte 0
|
||||
.endif
|
||||
.endm
|
||||
|
||||
.area _CODE (REL,CON)
|
||||
int reset
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
int no_action
|
||||
no_action:
|
||||
iret
|
||||
codebndry
|
||||
.area INITIALIZER (REL,CON)
|
||||
.area CODE (REL,CON)
|
||||
codebndry
|
||||
|
||||
reset:
|
||||
; PM0044 5.4 Conventions, table 3
|
||||
; N.B. PM004 cannot be right. Table 3 disagrees with the section 7 documentation for ADDW.
|
||||
; Table 4 has cycle counts for ADDW that disagree with the time graph on the right.
|
||||
jra table3
|
||||
codebndry
|
||||
table3: ldw x,[0x50]
|
||||
addw x,#20
|
||||
ld a,[0x30]
|
||||
table3_end:
|
||||
|
||||
; PM0044 5.4.1 Optimized pipeline example, table 6
|
||||
; N.B. Table 6 has the final F3 load one cycle too early surely?
|
||||
jra table6
|
||||
codebndry
|
||||
table6: neg a
|
||||
xor a, 0x10
|
||||
ld a, #20
|
||||
sub a, 0x1000
|
||||
inc a
|
||||
ld xl, a
|
||||
srl a
|
||||
swap a
|
||||
sla 0x15
|
||||
cp a, #0xfe
|
||||
mov 0x100, #11
|
||||
mov 0x101, #22
|
||||
table6_end:
|
||||
|
||||
; PM0044 5.4.2 Optimize pipeline example - execution from RAM, table 8 (requires copy to RAM)
|
||||
table8_copy:
|
||||
ldw x, #table8_end - table8_start
|
||||
jreq table8_copy_end
|
||||
table8_copy_loop:
|
||||
ld a, (table8_start - 1, x)
|
||||
ld (0x100 - 1, x), a
|
||||
decw x
|
||||
jrne table8_copy_loop
|
||||
table8_copy_end:
|
||||
call 0x100
|
||||
|
||||
codebndry
|
||||
.area INITIALIZER
|
||||
codebndry
|
||||
table8_start:
|
||||
jra table8
|
||||
codebndry
|
||||
table8: neg a
|
||||
xor a, 0x10
|
||||
ld a, #20
|
||||
sub a, 0x1000
|
||||
inc a
|
||||
ld xl, a
|
||||
srl a
|
||||
swap a
|
||||
sla 0x15
|
||||
cp a, #0xfe
|
||||
ret
|
||||
table8_end:
|
||||
codebndry
|
||||
.area CODE
|
||||
codebndry
|
||||
|
||||
; PM0044 5.4.3 Pipeline with Call/Jump, table 10
|
||||
jra table10
|
||||
codebndry
|
||||
table10:
|
||||
inc a
|
||||
jp label
|
||||
ldw x, [0x5432]
|
||||
label: neg a
|
||||
call label2
|
||||
ldw x, [0x5432]
|
||||
ldw x, [0x7895]
|
||||
label2: incw x
|
||||
table10_end:
|
||||
|
||||
; PM0044 5.4.4 Pipeline stalled, table 12
|
||||
clr a
|
||||
ld 0x10, a
|
||||
ld 0x20, a ; Table 12 doesn't include any setup...
|
||||
jra table12
|
||||
codebndry
|
||||
table12:
|
||||
sub sp, #20
|
||||
ld a, #20
|
||||
btjt 0x10, #5, to ; Table 12 assumes not taken
|
||||
inc a
|
||||
btjf 0x20, #3, to ; Table 12 assumes taken
|
||||
nop
|
||||
ldw x, [0x5432]
|
||||
ldw x, [0x1234]
|
||||
to: incw y
|
||||
ld a, (x)
|
||||
table12_end:
|
||||
|
||||
; DIV tests - available ST docs simply say "2-17 cycles"
|
||||
.macro timed_div dividend divisor ?aligned
|
||||
jra aligned
|
||||
codebndry
|
||||
aligned:
|
||||
ldw x, #dividend
|
||||
ld a, #divisor
|
||||
div x, a
|
||||
end_'aligned:
|
||||
.endm
|
||||
|
||||
timed_div 0x8000,0x80
|
||||
timed_div 0x8000,0x40
|
||||
timed_div 0x8000,0x20
|
||||
timed_div 0x8000,0x10
|
||||
timed_div 0x8000,0x08
|
||||
timed_div 0x8000,0x04
|
||||
timed_div 0x8000,0x02
|
||||
timed_div 0x8000,0x01
|
||||
|
||||
timed_div 0x8000,0x80
|
||||
timed_div 0x4000,0x80
|
||||
timed_div 0x2000,0x80
|
||||
timed_div 0x1000,0x80
|
||||
timed_div 0x0800,0x80
|
||||
timed_div 0x0400,0x80
|
||||
timed_div 0x0200,0x80
|
||||
timed_div 0x0100,0x80
|
||||
timed_div 0x0080,0x80
|
||||
timed_div 0x0040,0x80
|
||||
timed_div 0x0020,0x80
|
||||
timed_div 0x0010,0x80
|
||||
timed_div 0x0008,0x80
|
||||
timed_div 0x0004,0x80
|
||||
timed_div 0x0002,0x80
|
||||
timed_div 0x0001,0x80
|
||||
timed_div 0x0000,0x80
|
||||
|
||||
timed_div 63, 8
|
||||
timed_div 64, 8
|
||||
timed_div 65, 8
|
||||
|
||||
.macro timed_divw dividend divisor ?aligned
|
||||
jra aligned
|
||||
codebndry
|
||||
aligned:
|
||||
ldw x, #dividend
|
||||
ldw y, #divisor
|
||||
divw x, y
|
||||
end_'aligned:
|
||||
.endm
|
||||
|
||||
timed_divw 0x8000, 1
|
||||
|
||||
; Interrupted div
|
||||
jra test_idiv
|
||||
codebndry
|
||||
test_idiv:
|
||||
bset TIM4_IER, #0
|
||||
bset TIM4_EGR, #0
|
||||
mov TIM4_ARR, #8
|
||||
ldw x, #255
|
||||
ld a, #10
|
||||
mov TIM4_CR1, #0x0f
|
||||
div x, a
|
||||
|
||||
; Exercising all code in stm8.cc + inst.cc
|
||||
.macro timed_op op operand1 operand2a operand2b ?aligned
|
||||
jra aligned
|
||||
codebndry
|
||||
aligned:
|
||||
.narg .narg
|
||||
.ifeq .narg - 4
|
||||
op operand1,operand2a,operand2b
|
||||
.else
|
||||
.ifeq .narg - 3
|
||||
op operand1,operand2a
|
||||
.else
|
||||
.ifeq .narg - 2
|
||||
op operand1
|
||||
.else
|
||||
op
|
||||
.endif
|
||||
.endif
|
||||
.endif
|
||||
end_'aligned:
|
||||
.endm
|
||||
|
||||
; a, shortmem, longmem,
|
||||
; (X), (shortoff,X), (longoff,X)
|
||||
; (Y), (shortoff,Y), (longoff,Y)
|
||||
; (shortoff,SP)
|
||||
; ([shortptr.w],X), ([longptr.w],X)
|
||||
; ([shortptr.w],X), ([longptr.w],X)
|
||||
; ([shortptr.w],Y)
|
||||
.macro timed_class_1 op
|
||||
timed_op op a
|
||||
timed_op op 0xf5
|
||||
timed_op op 0xf5c2
|
||||
.irp reg,X,Y
|
||||
timed_op op (reg)
|
||||
timed_op op (0xf5,reg)
|
||||
timed_op op (0xf5c2,reg)
|
||||
.endm
|
||||
timed_op op (0xf5,SP)
|
||||
timed_op op [0xf5]
|
||||
timed_op op [0xf5c2]
|
||||
timed_op op ([0xf5],X)
|
||||
timed_op op ([0xf5c2],X)
|
||||
timed_op op ([0xf5],Y)
|
||||
.endm
|
||||
|
||||
; a <- #byte, shortmem, longmem,
|
||||
; (X), (shortoff,X), (longoff,X)
|
||||
; (Y), (shortoff,Y), (longoff,Y)
|
||||
; (shortoff,SP)
|
||||
; ([shortptr.w],X), ([longptr.w],X)
|
||||
; ([shortptr.w],X), ([longptr.w],X)
|
||||
; ([shortptr.w],Y)
|
||||
.macro timed_class_2 op
|
||||
timed_op op a,#0x55
|
||||
timed_op op a,0x10
|
||||
timed_op op a,0x1000
|
||||
.irp reg,X,Y
|
||||
timed_op op a,(reg)
|
||||
timed_op op a,(0x10,reg)
|
||||
timed_op op a,(0x1000,reg)
|
||||
.endm
|
||||
timed_op op a,(0x10,SP)
|
||||
timed_op op a,[0x10]
|
||||
timed_op op a,[0x1000]
|
||||
timed_op op a,([0x10],X)
|
||||
timed_op op a,([0x1000],X)
|
||||
timed_op op a,([0x10],Y)
|
||||
.endm
|
||||
|
||||
; SP <- #byte
|
||||
.macro timed_class_sp_imm op
|
||||
timed_op op sp,#0x55
|
||||
.endm
|
||||
|
||||
; X, Y
|
||||
.macro timed_class_xy op
|
||||
timed_op op X
|
||||
timed_op op Y
|
||||
.endm
|
||||
|
||||
; Bit addressed
|
||||
.macro timed_class_bit op
|
||||
timed_op op 0x1000,#2
|
||||
.endm
|
||||
|
||||
; Inherent
|
||||
.macro timed_class_inh op
|
||||
timed_op op
|
||||
.endm
|
||||
|
||||
timed_class_2 adc
|
||||
timed_class_2 add
|
||||
timed_op addw X,#0x1000
|
||||
timed_op addw X,0x1000
|
||||
timed_op addw X,(0x10,SP)
|
||||
timed_op addw Y,#0x1000
|
||||
timed_op addw Y,0x1000
|
||||
timed_op addw Y,(0x10,SP)
|
||||
timed_class_sp_imm addw
|
||||
timed_class_2 and
|
||||
timed_class_bit bccm
|
||||
timed_class_2 bcp
|
||||
timed_class_bit bcpl
|
||||
;break
|
||||
timed_class_bit bres
|
||||
timed_class_bit bset
|
||||
;btjf - covered by table 12 above
|
||||
;btjt - covered by table 12 above
|
||||
;call - uses common fetchea code
|
||||
;callf
|
||||
;callr
|
||||
timed_class_inh ccf
|
||||
timed_class_1 clr
|
||||
timed_class_xy clrw
|
||||
timed_class_2 cp
|
||||
timed_op cpw X,#0x55
|
||||
timed_op cpw X,0x10
|
||||
timed_op cpw X,0x1000
|
||||
timed_op cpw X,(Y)
|
||||
timed_op cpw X,(0x10,Y)
|
||||
timed_op cpw X,(0x1000,Y)
|
||||
timed_op cpw X,(0x10,SP)
|
||||
timed_op cpw X,[0x10]
|
||||
timed_op cpw X,[0x1000]
|
||||
timed_op cpw X,([0x10],Y)
|
||||
timed_op cpw Y,([0x1000],X)
|
||||
timed_class_1 cpl
|
||||
timed_class_xy cplw
|
||||
timed_class_1 dec
|
||||
timed_class_xy decw
|
||||
; ;div - covered above
|
||||
; ;divw - covered above
|
||||
timed_op exg a,xl
|
||||
timed_op exg a,yl
|
||||
timed_op exg a,0x1000
|
||||
timed_op exgw x,y
|
||||
;halt
|
||||
timed_class_1 inc
|
||||
timed_class_xy incw
|
||||
;int
|
||||
;iret
|
||||
;jp -covered by table 10 above
|
||||
;jpf
|
||||
;jra
|
||||
;jrxx
|
||||
timed_class_2 ld
|
||||
timed_op ld 0x10,a
|
||||
timed_op ld 0x1000,a
|
||||
timed_op ld (X),a
|
||||
timed_op ld (0x10,X),a
|
||||
timed_op ld (0x1000,X),a
|
||||
timed_op ld (Y),a
|
||||
timed_op ld (0x10,Y),a
|
||||
timed_op ld (0x1000,Y),a
|
||||
timed_op ld (0x10,SP),a
|
||||
timed_op ld [0x10],a
|
||||
timed_op ld [0x1000],a
|
||||
timed_op ld ([0x10],X),a
|
||||
timed_op ld ([0x1000],X),a
|
||||
timed_op ld ([0x10],Y),a
|
||||
timed_op ldf a,0x500000
|
||||
timed_op ldf a,(0x500000,X)
|
||||
timed_op ldf a,(0x500000,Y)
|
||||
timed_op ldf a,([0x5000],X)
|
||||
timed_op ldf a,([0x5000],Y)
|
||||
timed_op ldf a,[0x5000]
|
||||
timed_op ldw X,#0x55
|
||||
timed_op ldw X,0x10
|
||||
timed_op ldw X,0x1000
|
||||
timed_op ldw X,(X)
|
||||
timed_op ldw X,(0x10,X)
|
||||
timed_op ldw X,(0x1000,X)
|
||||
timed_op ldw X,(0x10,SP)
|
||||
timed_op ldw X,[0x10]
|
||||
timed_op ldw X,[0x1000]
|
||||
timed_op ldw X,([0x10],X)
|
||||
timed_op ldw X,([0x1000],X)
|
||||
timed_op mov 0x8000,#0xAA
|
||||
timed_op mov 0x80,0x10
|
||||
timed_op mov 0x8000,0x1000
|
||||
timed_op mul x,a
|
||||
timed_class_1 neg
|
||||
timed_class_xy negw
|
||||
timed_op nop
|
||||
timed_class_2 or
|
||||
;pop
|
||||
;popw
|
||||
;push
|
||||
;pushw
|
||||
timed_class_inh rcf
|
||||
;ret
|
||||
;retf
|
||||
; timed_class_inh rim
|
||||
timed_class_1 rlc
|
||||
timed_class_xy rlcw
|
||||
timed_class_xy rlwa
|
||||
timed_class_1 rrc
|
||||
timed_class_xy rrcw
|
||||
timed_class_xy rrwa
|
||||
timed_class_inh rvf
|
||||
timed_class_2 sbc
|
||||
timed_class_inh scf
|
||||
; timed_class_inh sim
|
||||
timed_op subw X,#0x5500
|
||||
timed_op subw X,0x1000
|
||||
timed_op subw X,(0x10,SP)
|
||||
timed_op ldw Y,X
|
||||
timed_op ldw 0x10,X
|
||||
timed_op ldw 0x1000,X
|
||||
timed_op ldw (X),Y
|
||||
timed_op ldw (0x10,X),Y
|
||||
timed_op ldw (0x1000,X),Y
|
||||
timed_op ldw (0x10,SP),X
|
||||
timed_op ldw [0x10],X
|
||||
timed_op ldw [0x1000],X
|
||||
timed_op ldw ([0x10],X),Y
|
||||
timed_op ldw ([0x1000],X),Y
|
||||
timed_class_1 sla
|
||||
timed_class_xy slaw
|
||||
timed_class_1 sll
|
||||
timed_class_xy sllw
|
||||
timed_class_1 sra
|
||||
timed_class_xy sraw
|
||||
timed_class_1 srl
|
||||
timed_class_xy srlw
|
||||
timed_class_2 sub
|
||||
timed_class_sp_imm sub
|
||||
timed_class_1 swap
|
||||
timed_class_xy swapw
|
||||
timed_class_1 tnz
|
||||
timed_class_xy tnzw
|
||||
;trap
|
||||
;wfe
|
||||
;wfi
|
||||
timed_class_2 xor
|
||||
|
||||
dividend = 0x8000
|
||||
.rept 15
|
||||
timed_div dividend,0x02
|
||||
dividend = dividend >> 1
|
||||
.endm
|
||||
|
||||
dividend = 0x10000
|
||||
.rept 15
|
||||
timed_div dividend-1,0x02
|
||||
dividend = dividend >> 1
|
||||
.endm
|
||||
|
||||
timed_div 0x2000 0x02
|
||||
timed_div 0x2040 0x02
|
||||
timed_div 0x2048 0x02
|
||||
timed_div 0x2148 0x02
|
||||
timed_div 0x21c8 0x02
|
||||
|
||||
timed_div 45831 94
|
||||
|
||||
end:
|
||||
halt
|
||||
.area _DATA
|
||||
@@ -0,0 +1,473 @@
|
||||
<html>
|
||||
<head>
|
||||
<title>DIV tests - available ST docs simply say '2-17 cycles'</title>
|
||||
<script>
|
||||
function toggle(id) {
|
||||
var obj = document.getElementById(id);
|
||||
if (obj.style.display === 'none')
|
||||
obj.style.display = 'block';
|
||||
else
|
||||
obj.style.display = 'none';
|
||||
}
|
||||
</script>
|
||||
|
||||
<style>
|
||||
.pipetrace { margin: 1em 0; }
|
||||
.pipetrace, .pipetrace td { border: 1px solid black; border-collapse: collapse; padding: 0 0.2em; white-space: nowrap; }
|
||||
.pipetrace thead { background-color: #d2d2d2; position: sticky; top: 0; }
|
||||
.pipetrace thead th { border: none; box-shadow: inset -1px -1px #000; }
|
||||
.pipetrace tr:nth-child(even) { background-color: #f2f2f2; }
|
||||
.pipetrace td { min-width: 1.6em; }
|
||||
.pipetrace td.instr:before { content: ""; }
|
||||
.pipetrace td.instr { width: 9.5em; }
|
||||
.pipetrace td.Sbus:before { content: " S₀"; }
|
||||
.pipetrace td.Sfetch:before { content: " S₁"; }
|
||||
.pipetrace td.Sraw:before { content: " S₂"; }
|
||||
.pipetrace td:before { content: attr(class); }
|
||||
.pipetrace td.D { background-color: lawngreen; }
|
||||
.pipetrace td.E { background-color: navajowhite; }
|
||||
.pipetrace td.Sbus { background-color: red; }
|
||||
.pipetrace td.Sfetch { background-color: red; }
|
||||
.pipetrace td.Sraw { background-color: red; }
|
||||
.pipetrace td.X, .pipetrace td.Flushed { background-color: red; }
|
||||
.pipetrace td span:after { content: attr(class); }
|
||||
.pipetrace td span { padding: 0 0.2em; margin: 0 0 0 0.1em; }
|
||||
.pipetrace td span.FS { background-color: lightgrey; }
|
||||
.pipetrace td span.F { background-color: lightskyblue; }
|
||||
#pipetrace_legend { border: none; background-color: white; position: fixed; bottom: 0; right: 0; }
|
||||
#pipetrace_legend tr:first-of-type { font-weight: bold; }
|
||||
#pipetrace_legend td { text-align: center; }
|
||||
#pipetrace_legend td.defn { text-align: left; }
|
||||
#pipetrace_legend td.defn:before { content: ""; }
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body onload="toggle('pipetrace_legend')">
|
||||
|
||||
<h1>DIV tests - available ST docs simply say '2-17 cycles'</h1>
|
||||
|
||||
<table id="pipetrace_legend" class="pipetrace">
|
||||
<tr><td colspan="2">Legend</td></tr>
|
||||
<tr><td class="D" /><td class="defn">Decode</td></tr>
|
||||
<tr><td class="E" /><td class="defn">Execute</td></tr>
|
||||
<tr><td><span class="F" /></td><td class="defn">Fetch</td></tr>
|
||||
<tr><td class="X" /><td class="defn">Flush</td></tr>
|
||||
<tr><td><span class="FS" /></td><td class="defn">Fetch Stall - space in prefetch buffer but bus busy</td></tr>
|
||||
<tr><td class="Sbus" /><td class="defn">Decode Stall - bus busy</td></tr>
|
||||
<tr><td class="Sfetch" /><td class="defn">Decode Stall - insufficient data in prefetch buffer</td></tr>
|
||||
<tr><td class="Sraw" /><td class="defn">Decode Stall - read after write</td></tr>
|
||||
</table>
|
||||
|
||||
<p>The stated cycle count would seem to imply binary long division and
|
||||
this is how the STM8 emulator in ucsim currently treats div for.
|
||||
cycle counting. However the cycles measured on actual hardware
|
||||
suggest this is not correct.
|
||||
</p>
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08100</td><td class="instr">ldw X,#0x8000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08103</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08105</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08108</td><td class="instr">ldw X,#0x8000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0810b</td><td class="instr">ld A,#0x40</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0810d</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08110</td><td class="instr">ldw X,#0x8000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08113</td><td class="instr">ld A,#0x20</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08115</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08118</td><td class="instr">ldw X,#0x8000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0811b</td><td class="instr">ld A,#0x10</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0811d</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08120</td><td class="instr">ldw X,#0x8000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08123</td><td class="instr">ld A,#0x08</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08125</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08128</td><td class="instr">ldw X,#0x8000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0812b</td><td class="instr">ld A,#0x04</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0812d</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08130</td><td class="instr">ldw X,#0x8000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08133</td><td class="instr">ld A,#0x02</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08135</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08138</td><td class="instr">ldw X,#0x8000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0813b</td><td class="instr">ld A,#0x01</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0813d</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08140</td><td class="instr">ldw X,#0x8000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08143</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08145</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08148</td><td class="instr">ldw X,#0x4000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0814b</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0814d</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08150</td><td class="instr">ldw X,#0x2000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08153</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08155</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08158</td><td class="instr">ldw X,#0x1000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0815b</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0815d</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08160</td><td class="instr">ldw X,#0x0800</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08163</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08165</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08168</td><td class="instr">ldw X,#0x0400</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0816b</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0816d</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08170</td><td class="instr">ldw X,#0x0200</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08173</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08175</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08178</td><td class="instr">ldw X,#0x0100</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0817b</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0817d</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08180</td><td class="instr">ldw X,#0x0080</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08183</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08185</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08188</td><td class="instr">ldw X,#0x0040</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0818b</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0818d</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08190</td><td class="instr">ldw X,#0x0020</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08193</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08195</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08198</td><td class="instr">ldw X,#0x0010</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0819b</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0819d</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x081a0</td><td class="instr">ldw X,#0x0008</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081a3</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081a5</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x081a8</td><td class="instr">ldw X,#0x0004</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081ab</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081ad</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x081b0</td><td class="instr">ldw X,#0x0002</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081b3</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081b5</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x081b8</td><td class="instr">ldw X,#0x0001</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081bb</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081bd</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x081c0</td><td class="instr">ldw X,#0x0000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081c3</td><td class="instr">ld A,#0x80</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081c5</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x081c8</td><td class="instr">ldw X,#0x003f</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081cb</td><td class="instr">ld A,#0x08</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081cd</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th><th class="n">9</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x081d0</td><td class="instr">ldw X,#0x0040</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081d3</td><td class="instr">ld A,#0x08</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081d5</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x081d8</td><td class="instr">ldw X,#0x0041</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081db</td><td class="instr">ld A,#0x08</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081dd</td><td class="instr">div X,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x081e0</td><td class="instr">ldw X,#0x8000</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x081e3</td><td class="instr">ldw Y,#0x0001</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E"></td><td class=" E" /></tr>
|
||||
<tr><td>0x081e7</td><td class="instr">divw X,Y</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,74 @@
|
||||
<html>
|
||||
<head>
|
||||
<title>Interrupted div</title>
|
||||
<script>
|
||||
function toggle(id) {
|
||||
var obj = document.getElementById(id);
|
||||
if (obj.style.display === 'none')
|
||||
obj.style.display = 'block';
|
||||
else
|
||||
obj.style.display = 'none';
|
||||
}
|
||||
</script>
|
||||
|
||||
<style>
|
||||
.pipetrace { margin: 1em 0; }
|
||||
.pipetrace, .pipetrace td { border: 1px solid black; border-collapse: collapse; padding: 0 0.2em; white-space: nowrap; }
|
||||
.pipetrace thead { background-color: #d2d2d2; position: sticky; top: 0; }
|
||||
.pipetrace thead th { border: none; box-shadow: inset -1px -1px #000; }
|
||||
.pipetrace tr:nth-child(even) { background-color: #f2f2f2; }
|
||||
.pipetrace td { min-width: 1.6em; }
|
||||
.pipetrace td.instr:before { content: ""; }
|
||||
.pipetrace td.instr { width: 9.5em; }
|
||||
.pipetrace td.Sbus:before { content: " S₀"; }
|
||||
.pipetrace td.Sfetch:before { content: " S₁"; }
|
||||
.pipetrace td.Sraw:before { content: " S₂"; }
|
||||
.pipetrace td:before { content: attr(class); }
|
||||
.pipetrace td.D { background-color: lawngreen; }
|
||||
.pipetrace td.E { background-color: navajowhite; }
|
||||
.pipetrace td.Sbus { background-color: red; }
|
||||
.pipetrace td.Sfetch { background-color: red; }
|
||||
.pipetrace td.Sraw { background-color: red; }
|
||||
.pipetrace td.X, .pipetrace td.Flushed { background-color: red; }
|
||||
.pipetrace td span:after { content: attr(class); }
|
||||
.pipetrace td span { padding: 0 0.2em; margin: 0 0 0 0.1em; }
|
||||
.pipetrace td span.FS { background-color: lightgrey; }
|
||||
.pipetrace td span.F { background-color: lightskyblue; }
|
||||
#pipetrace_legend { border: none; background-color: white; position: fixed; bottom: 0; right: 0; }
|
||||
#pipetrace_legend tr:first-of-type { font-weight: bold; }
|
||||
#pipetrace_legend td { text-align: center; }
|
||||
#pipetrace_legend td.defn { text-align: left; }
|
||||
#pipetrace_legend td.defn:before { content: ""; }
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body onload="toggle('pipetrace_legend')">
|
||||
|
||||
<h1>Interrupted div</h1>
|
||||
|
||||
<table id="pipetrace_legend" class="pipetrace">
|
||||
<tr><td colspan="2">Legend</td></tr>
|
||||
<tr><td class="D" /><td class="defn">Decode</td></tr>
|
||||
<tr><td class="E" /><td class="defn">Execute</td></tr>
|
||||
<tr><td><span class="F" /></td><td class="defn">Fetch</td></tr>
|
||||
<tr><td class="X" /><td class="defn">Flush</td></tr>
|
||||
<tr><td><span class="FS" /></td><td class="defn">Fetch Stall - space in prefetch buffer but bus busy</td></tr>
|
||||
<tr><td class="Sbus" /><td class="defn">Decode Stall - bus busy</td></tr>
|
||||
<tr><td class="Sfetch" /><td class="defn">Decode Stall - insufficient data in prefetch buffer</td></tr>
|
||||
<tr><td class="Sraw" /><td class="defn">Decode Stall - read after write</td></tr>
|
||||
</table>
|
||||
|
||||
<p>(Not currently implemented.)</p>
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td>0x08201</td><td class="instr">div X,A</td><td class=" D"></td><td class=" E"></td><td class=" E"></td><td class=" E"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
@@ -0,0 +1,92 @@
|
||||
<html>
|
||||
<head>
|
||||
<title>PM0044 5.4.3 Pipeline with Call/Jump, table 10</title>
|
||||
<script>
|
||||
function toggle(id) {
|
||||
var obj = document.getElementById(id);
|
||||
if (obj.style.display === 'none')
|
||||
obj.style.display = 'block';
|
||||
else
|
||||
obj.style.display = 'none';
|
||||
}
|
||||
</script>
|
||||
|
||||
<style>
|
||||
.pipetrace { margin: 1em 0; }
|
||||
.pipetrace, .pipetrace td { border: 1px solid black; border-collapse: collapse; padding: 0 0.2em; white-space: nowrap; }
|
||||
.pipetrace thead { background-color: #d2d2d2; position: sticky; top: 0; }
|
||||
.pipetrace thead th { border: none; box-shadow: inset -1px -1px #000; }
|
||||
.pipetrace tr:nth-child(even) { background-color: #f2f2f2; }
|
||||
.pipetrace td { min-width: 1.6em; }
|
||||
.pipetrace td.instr:before { content: ""; }
|
||||
.pipetrace td.instr { width: 9.5em; }
|
||||
.pipetrace td.Sbus:before { content: " S₀"; }
|
||||
.pipetrace td.Sfetch:before { content: " S₁"; }
|
||||
.pipetrace td.Sraw:before { content: " S₂"; }
|
||||
.pipetrace td:before { content: attr(class); }
|
||||
.pipetrace td.D { background-color: lawngreen; }
|
||||
.pipetrace td.E { background-color: navajowhite; }
|
||||
.pipetrace td.Sbus { background-color: red; }
|
||||
.pipetrace td.Sfetch { background-color: red; }
|
||||
.pipetrace td.Sraw { background-color: red; }
|
||||
.pipetrace td.X, .pipetrace td.Flushed { background-color: red; }
|
||||
.pipetrace td span:after { content: attr(class); }
|
||||
.pipetrace td span { padding: 0 0.2em; margin: 0 0 0 0.1em; }
|
||||
.pipetrace td span.FS { background-color: lightgrey; }
|
||||
.pipetrace td span.F { background-color: lightskyblue; }
|
||||
#pipetrace_legend { border: none; background-color: white; position: fixed; bottom: 0; right: 0; }
|
||||
#pipetrace_legend tr:first-of-type { font-weight: bold; }
|
||||
#pipetrace_legend td { text-align: center; }
|
||||
#pipetrace_legend td.defn { text-align: left; }
|
||||
#pipetrace_legend td.defn:before { content: ""; }
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body onload="toggle('pipetrace_legend')">
|
||||
|
||||
<h1>PM0044 5.4.3 Pipeline with Call/Jump, table 10</h1>
|
||||
|
||||
<table id="pipetrace_legend" class="pipetrace">
|
||||
<tr><td colspan="2">Legend</td></tr>
|
||||
<tr><td class="D" /><td class="defn">Decode</td></tr>
|
||||
<tr><td class="E" /><td class="defn">Execute</td></tr>
|
||||
<tr><td><span class="F" /></td><td class="defn">Fetch</td></tr>
|
||||
<tr><td class="X" /><td class="defn">Flush</td></tr>
|
||||
<tr><td><span class="FS" /></td><td class="defn">Fetch Stall - space in prefetch buffer but bus busy</td></tr>
|
||||
<tr><td class="Sbus" /><td class="defn">Decode Stall - bus busy</td></tr>
|
||||
<tr><td class="Sfetch" /><td class="defn">Decode Stall - insufficient data in prefetch buffer</td></tr>
|
||||
<tr><td class="Sraw" /><td class="defn">Decode Stall - read after write</td></tr>
|
||||
</table>
|
||||
|
||||
<p>PM0044 table 10 shows a fetch stall in the first execution cycle
|
||||
of the call (cycle 7) however it should be possible for a fetch
|
||||
to take place since pushing the return address only busies the
|
||||
data bus (and STM8 is a Harvard architecture with unified address
|
||||
space so the data and program are separate buses).</p>
|
||||
<p>Also note that since the flush happens on the last execute cycle
|
||||
of the call (unlike the jp) there is no overlap and we mark
|
||||
the following cycle as a decode stall. Technically this is correct
|
||||
but table 10 does not and says the call takes 3 cycles which
|
||||
ignores the unavoidable stall cycle. The later instruction documentation
|
||||
for call says it takes 4 cycles which is presumed to include the
|
||||
stall cycle that follows it.</p>
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x080c4</td><td class="instr">inc A</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080c5</td><td class="instr">jp 0x80cc</td><td class="" /><td class="" /><td class=" D X"></td><td class=" E" /></tr>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x080cc</td><td class="instr">neg A</td><td class="" /><td class="" /><td class="" /><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080cd</td><td class="instr">call 0x80d8</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E"><span class="F" /></td><td class=" E X" /></tr>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x080d8</td><td class="instr">incw X</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=""></td><td class=" D Sfetch"><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th><th class="n">9</th><th class="n">10</th><th class="n">11</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
@@ -0,0 +1,94 @@
|
||||
<html>
|
||||
<head>
|
||||
<title>PM0044 5.4.4 Pipeline stalled, table 12</title>
|
||||
<script>
|
||||
function toggle(id) {
|
||||
var obj = document.getElementById(id);
|
||||
if (obj.style.display === 'none')
|
||||
obj.style.display = 'block';
|
||||
else
|
||||
obj.style.display = 'none';
|
||||
}
|
||||
</script>
|
||||
|
||||
<style>
|
||||
.pipetrace { margin: 1em 0; }
|
||||
.pipetrace, .pipetrace td { border: 1px solid black; border-collapse: collapse; padding: 0 0.2em; white-space: nowrap; }
|
||||
.pipetrace thead { background-color: #d2d2d2; position: sticky; top: 0; }
|
||||
.pipetrace thead th { border: none; box-shadow: inset -1px -1px #000; }
|
||||
.pipetrace tr:nth-child(even) { background-color: #f2f2f2; }
|
||||
.pipetrace td { min-width: 1.6em; }
|
||||
.pipetrace td.instr:before { content: ""; }
|
||||
.pipetrace td.instr { width: 9.5em; }
|
||||
.pipetrace td.Sbus:before { content: " S₀"; }
|
||||
.pipetrace td.Sfetch:before { content: " S₁"; }
|
||||
.pipetrace td.Sraw:before { content: " S₂"; }
|
||||
.pipetrace td:before { content: attr(class); }
|
||||
.pipetrace td.D { background-color: lawngreen; }
|
||||
.pipetrace td.E { background-color: navajowhite; }
|
||||
.pipetrace td.Sbus { background-color: red; }
|
||||
.pipetrace td.Sfetch { background-color: red; }
|
||||
.pipetrace td.Sraw { background-color: red; }
|
||||
.pipetrace td.X, .pipetrace td.Flushed { background-color: red; }
|
||||
.pipetrace td span:after { content: attr(class); }
|
||||
.pipetrace td span { padding: 0 0.2em; margin: 0 0 0 0.1em; }
|
||||
.pipetrace td span.FS { background-color: lightgrey; }
|
||||
.pipetrace td span.F { background-color: lightskyblue; }
|
||||
#pipetrace_legend { border: none; background-color: white; position: fixed; bottom: 0; right: 0; }
|
||||
#pipetrace_legend tr:first-of-type { font-weight: bold; }
|
||||
#pipetrace_legend td { text-align: center; }
|
||||
#pipetrace_legend td.defn { text-align: left; }
|
||||
#pipetrace_legend td.defn:before { content: ""; }
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body onload="toggle('pipetrace_legend')">
|
||||
|
||||
<h1>PM0044 5.4.4 Pipeline stalled, table 12</h1>
|
||||
|
||||
<table id="pipetrace_legend" class="pipetrace">
|
||||
<tr><td colspan="2">Legend</td></tr>
|
||||
<tr><td class="D" /><td class="defn">Decode</td></tr>
|
||||
<tr><td class="E" /><td class="defn">Execute</td></tr>
|
||||
<tr><td><span class="F" /></td><td class="defn">Fetch</td></tr>
|
||||
<tr><td class="X" /><td class="defn">Flush</td></tr>
|
||||
<tr><td><span class="FS" /></td><td class="defn">Fetch Stall - space in prefetch buffer but bus busy</td></tr>
|
||||
<tr><td class="Sbus" /><td class="defn">Decode Stall - bus busy</td></tr>
|
||||
<tr><td class="Sfetch" /><td class="defn">Decode Stall - insufficient data in prefetch buffer</td></tr>
|
||||
<tr><td class="Sraw" /><td class="defn">Decode Stall - read after write</td></tr>
|
||||
</table>
|
||||
|
||||
<h2>Errata</h2>
|
||||
<ul>
|
||||
<li>Table 12 shows the BTJT as taking 1 decode, 2 execute cycles but the
|
||||
later documention for the instruction implies the second execution
|
||||
cycle is only used if the branch is taken - and this isn't.
|
||||
</li>
|
||||
<li>Table 12 has a jump in time (cycles) from 4 straight to 7.
|
||||
</li>
|
||||
<li>The last instruction is shown one cycle early in table 12. The decode stall
|
||||
should line up with the execution cycle of the previous instruction
|
||||
as the description above the table says.
|
||||
</li>
|
||||
</ul>
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x080e0</td><td class="instr">sub SP,#0x14</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080e2</td><td class="instr">ld A,#0x14</td><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080e4</td><td class="instr">btjt 0x0010,#5,0x80f8</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080e9</td><td class="instr">inc A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080ea</td><td class="instr">btjf 0x0020,#3,0x80f8</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E X"></td><td class=" E" /></tr>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x080f8</td><td class="instr">incw Y</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080fa</td><td class="instr">ld A,(X)</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D Sraw"><span class="F" /></td><td class=" D"></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th><th class="n">9</th><th class="n">10</th><th class="n">11</th><th class="n">12</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
@@ -0,0 +1,88 @@
|
||||
<html>
|
||||
<head>
|
||||
<title>PM0044 5.4 Conventions, table 3</title>
|
||||
<script>
|
||||
function toggle(id) {
|
||||
var obj = document.getElementById(id);
|
||||
if (obj.style.display === 'none')
|
||||
obj.style.display = 'block';
|
||||
else
|
||||
obj.style.display = 'none';
|
||||
}
|
||||
</script>
|
||||
|
||||
<style>
|
||||
.pipetrace { margin: 1em 0; }
|
||||
.pipetrace, .pipetrace td { border: 1px solid black; border-collapse: collapse; padding: 0 0.2em; white-space: nowrap; }
|
||||
.pipetrace thead { background-color: #d2d2d2; position: sticky; top: 0; }
|
||||
.pipetrace thead th { border: none; box-shadow: inset -1px -1px #000; }
|
||||
.pipetrace tr:nth-child(even) { background-color: #f2f2f2; }
|
||||
.pipetrace td { min-width: 1.6em; }
|
||||
.pipetrace td.instr:before { content: ""; }
|
||||
.pipetrace td.instr { width: 9.5em; }
|
||||
.pipetrace td.Sbus:before { content: " S₀"; }
|
||||
.pipetrace td.Sfetch:before { content: " S₁"; }
|
||||
.pipetrace td.Sraw:before { content: " S₂"; }
|
||||
.pipetrace td:before { content: attr(class); }
|
||||
.pipetrace td.D { background-color: lawngreen; }
|
||||
.pipetrace td.E { background-color: navajowhite; }
|
||||
.pipetrace td.Sbus { background-color: red; }
|
||||
.pipetrace td.Sfetch { background-color: red; }
|
||||
.pipetrace td.Sraw { background-color: red; }
|
||||
.pipetrace td.X, .pipetrace td.Flushed { background-color: red; }
|
||||
.pipetrace td span:after { content: attr(class); }
|
||||
.pipetrace td span { padding: 0 0.2em; margin: 0 0 0 0.1em; }
|
||||
.pipetrace td span.FS { background-color: lightgrey; }
|
||||
.pipetrace td span.F { background-color: lightskyblue; }
|
||||
#pipetrace_legend { border: none; background-color: white; position: fixed; bottom: 0; right: 0; }
|
||||
#pipetrace_legend tr:first-of-type { font-weight: bold; }
|
||||
#pipetrace_legend td { text-align: center; }
|
||||
#pipetrace_legend td.defn { text-align: left; }
|
||||
#pipetrace_legend td.defn:before { content: ""; }
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body onload="toggle('pipetrace_legend')">
|
||||
|
||||
<h1>PM0044 5.4 Conventions, table 3</h1>
|
||||
|
||||
<table id="pipetrace_legend" class="pipetrace">
|
||||
<tr><td colspan="2">Legend</td></tr>
|
||||
<tr><td class="D" /><td class="defn">Decode</td></tr>
|
||||
<tr><td class="E" /><td class="defn">Execute</td></tr>
|
||||
<tr><td><span class="F" /></td><td class="defn">Fetch</td></tr>
|
||||
<tr><td class="X" /><td class="defn">Flush</td></tr>
|
||||
<tr><td><span class="FS" /></td><td class="defn">Fetch Stall - space in prefetch buffer but bus busy</td></tr>
|
||||
<tr><td class="Sbus" /><td class="defn">Decode Stall - bus busy</td></tr>
|
||||
<tr><td class="Sfetch" /><td class="defn">Decode Stall - insufficient data in prefetch buffer</td></tr>
|
||||
<tr><td class="Sraw" /><td class="defn">Decode Stall - read after write</td></tr>
|
||||
</table>
|
||||
|
||||
<h2>Errata</h2>
|
||||
<ul>
|
||||
<li>The LDW shown in PM0044 table 3 is missing a decode cycle.
|
||||
<br/>
|
||||
(Confirmed on HW)
|
||||
</li>
|
||||
<li>The ADDW shown in PM0044 table 3 has one too many decode cycles.
|
||||
<br/>
|
||||
(Confirmed on HW)
|
||||
</li>
|
||||
<li>The LD shown in PM0044 table 3 is missing a decode cycle.
|
||||
</ul>
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x0808c</td><td class="instr">ldw X,[0x50.w]</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" D"></td><td class=" D"></td><td class=" D"></td><td class=" E" /></tr>
|
||||
<tr><td>0x0808f</td><td class="instr">addw X,#0x0014</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E"></td><td class=" E" /></tr>
|
||||
<tr><td>0x08092</td><td class="instr">ld A,[0x30.w]</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" D"></td><td class=" D"></td><td class=" D"><span class="FS" /></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th><th class="n">9</th><th class="n">10</th><th class="n">11</th><th class="n">12</th><th class="n">13</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
@@ -0,0 +1,85 @@
|
||||
<html>
|
||||
<head>
|
||||
<title>PM0044 5.4.1 Optimized pipeline example - execution from flash, table 6</title>
|
||||
<script>
|
||||
function toggle(id) {
|
||||
var obj = document.getElementById(id);
|
||||
if (obj.style.display === 'none')
|
||||
obj.style.display = 'block';
|
||||
else
|
||||
obj.style.display = 'none';
|
||||
}
|
||||
</script>
|
||||
|
||||
<style>
|
||||
.pipetrace { margin: 1em 0; }
|
||||
.pipetrace, .pipetrace td { border: 1px solid black; border-collapse: collapse; padding: 0 0.2em; white-space: nowrap; }
|
||||
.pipetrace thead { background-color: #d2d2d2; position: sticky; top: 0; }
|
||||
.pipetrace thead th { border: none; box-shadow: inset -1px -1px #000; }
|
||||
.pipetrace tr:nth-child(even) { background-color: #f2f2f2; }
|
||||
.pipetrace td { min-width: 1.6em; }
|
||||
.pipetrace td.instr:before { content: ""; }
|
||||
.pipetrace td.instr { width: 9.5em; }
|
||||
.pipetrace td.Sbus:before { content: " S₀"; }
|
||||
.pipetrace td.Sfetch:before { content: " S₁"; }
|
||||
.pipetrace td.Sraw:before { content: " S₂"; }
|
||||
.pipetrace td:before { content: attr(class); }
|
||||
.pipetrace td.D { background-color: lawngreen; }
|
||||
.pipetrace td.E { background-color: navajowhite; }
|
||||
.pipetrace td.Sbus { background-color: red; }
|
||||
.pipetrace td.Sfetch { background-color: red; }
|
||||
.pipetrace td.Sraw { background-color: red; }
|
||||
.pipetrace td.X, .pipetrace td.Flushed { background-color: red; }
|
||||
.pipetrace td span:after { content: attr(class); }
|
||||
.pipetrace td span { padding: 0 0.2em; margin: 0 0 0 0.1em; }
|
||||
.pipetrace td span.FS { background-color: lightgrey; }
|
||||
.pipetrace td span.F { background-color: lightskyblue; }
|
||||
#pipetrace_legend { border: none; background-color: white; position: fixed; bottom: 0; right: 0; }
|
||||
#pipetrace_legend tr:first-of-type { font-weight: bold; }
|
||||
#pipetrace_legend td { text-align: center; }
|
||||
#pipetrace_legend td.defn { text-align: left; }
|
||||
#pipetrace_legend td.defn:before { content: ""; }
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body onload="toggle('pipetrace_legend')">
|
||||
|
||||
<h1>PM0044 5.4.1 Optimized pipeline example - execution from flash, table 6</h1>
|
||||
|
||||
<table id="pipetrace_legend" class="pipetrace">
|
||||
<tr><td colspan="2">Legend</td></tr>
|
||||
<tr><td class="D" /><td class="defn">Decode</td></tr>
|
||||
<tr><td class="E" /><td class="defn">Execute</td></tr>
|
||||
<tr><td><span class="F" /></td><td class="defn">Fetch</td></tr>
|
||||
<tr><td class="X" /><td class="defn">Flush</td></tr>
|
||||
<tr><td><span class="FS" /></td><td class="defn">Fetch Stall - space in prefetch buffer but bus busy</td></tr>
|
||||
<tr><td class="Sbus" /><td class="defn">Decode Stall - bus busy</td></tr>
|
||||
<tr><td class="Sfetch" /><td class="defn">Decode Stall - insufficient data in prefetch buffer</td></tr>
|
||||
<tr><td class="Sraw" /><td class="defn">Decode Stall - read after write</td></tr>
|
||||
</table>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x08098</td><td class="instr">neg A</td><td class=""><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x08099</td><td class="instr">xor A,0x10</td><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0809b</td><td class="instr">ld A,#0x14</td><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0809d</td><td class="instr">sub A,0x1000</td><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080a0</td><td class="instr">inc A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E" /></tr>
|
||||
<tr><td>0x080a1</td><td class="instr">ld XL,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E" /></tr>
|
||||
<tr><td>0x080a2</td><td class="instr">srl A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E" /></tr>
|
||||
<tr><td>0x080a3</td><td class="instr">swap A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080a4</td><td class="instr">sla 0x15</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"></td><td class=" E" /></tr>
|
||||
<tr><td>0x080a6</td><td class="instr">cp A,#0xfe</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080a8</td><td class="instr">mov 0x0100,#0x0b</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x080ac</td><td class="instr">mov 0x0101,#0x16</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th><th class="n">9</th><th class="n">10</th><th class="n">11</th><th class="n">12</th><th class="n">13</th><th class="n">14</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
@@ -0,0 +1,83 @@
|
||||
<html>
|
||||
<head>
|
||||
<title>PM0044 5.4.2 Optimize pipeline example - execution from RAM, table 8</title>
|
||||
<script>
|
||||
function toggle(id) {
|
||||
var obj = document.getElementById(id);
|
||||
if (obj.style.display === 'none')
|
||||
obj.style.display = 'block';
|
||||
else
|
||||
obj.style.display = 'none';
|
||||
}
|
||||
</script>
|
||||
|
||||
<style>
|
||||
.pipetrace { margin: 1em 0; }
|
||||
.pipetrace, .pipetrace td { border: 1px solid black; border-collapse: collapse; padding: 0 0.2em; white-space: nowrap; }
|
||||
.pipetrace thead { background-color: #d2d2d2; position: sticky; top: 0; }
|
||||
.pipetrace thead th { border: none; box-shadow: inset -1px -1px #000; }
|
||||
.pipetrace tr:nth-child(even) { background-color: #f2f2f2; }
|
||||
.pipetrace td { min-width: 1.6em; }
|
||||
.pipetrace td.instr:before { content: ""; }
|
||||
.pipetrace td.instr { width: 9.5em; }
|
||||
.pipetrace td.Sbus:before { content: " S₀"; }
|
||||
.pipetrace td.Sfetch:before { content: " S₁"; }
|
||||
.pipetrace td.Sraw:before { content: " S₂"; }
|
||||
.pipetrace td:before { content: attr(class); }
|
||||
.pipetrace td.D { background-color: lawngreen; }
|
||||
.pipetrace td.E { background-color: navajowhite; }
|
||||
.pipetrace td.Sbus { background-color: red; }
|
||||
.pipetrace td.Sfetch { background-color: red; }
|
||||
.pipetrace td.Sraw { background-color: red; }
|
||||
.pipetrace td.X, .pipetrace td.Flushed { background-color: red; }
|
||||
.pipetrace td span:after { content: attr(class); }
|
||||
.pipetrace td span { padding: 0 0.2em; margin: 0 0 0 0.1em; }
|
||||
.pipetrace td span.FS { background-color: lightgrey; }
|
||||
.pipetrace td span.F { background-color: lightskyblue; }
|
||||
#pipetrace_legend { border: none; background-color: white; position: fixed; bottom: 0; right: 0; }
|
||||
#pipetrace_legend tr:first-of-type { font-weight: bold; }
|
||||
#pipetrace_legend td { text-align: center; }
|
||||
#pipetrace_legend td.defn { text-align: left; }
|
||||
#pipetrace_legend td.defn:before { content: ""; }
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body onload="toggle('pipetrace_legend')">
|
||||
|
||||
<h1>PM0044 5.4.2 Optimize pipeline example - execution from RAM, table 8</h1>
|
||||
|
||||
<table id="pipetrace_legend" class="pipetrace">
|
||||
<tr><td colspan="2">Legend</td></tr>
|
||||
<tr><td class="D" /><td class="defn">Decode</td></tr>
|
||||
<tr><td class="E" /><td class="defn">Execute</td></tr>
|
||||
<tr><td><span class="F" /></td><td class="defn">Fetch</td></tr>
|
||||
<tr><td class="X" /><td class="defn">Flush</td></tr>
|
||||
<tr><td><span class="FS" /></td><td class="defn">Fetch Stall - space in prefetch buffer but bus busy</td></tr>
|
||||
<tr><td class="Sbus" /><td class="defn">Decode Stall - bus busy</td></tr>
|
||||
<tr><td class="Sfetch" /><td class="defn">Decode Stall - insufficient data in prefetch buffer</td></tr>
|
||||
<tr><td class="Sraw" /><td class="defn">Decode Stall - read after write</td></tr>
|
||||
</table>
|
||||
|
||||
<a title="Click for legend">
|
||||
<table class="pipetrace" onclick="toggle('pipetrace_legend')">
|
||||
<tbody>
|
||||
<tr><td /><td class="Flushed" /></tr>
|
||||
<tr><td>0x00104</td><td class="instr">neg A</td><td class=""><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x00105</td><td class="instr">xor A,0x10</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="FS" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x00107</td><td class="instr">ld A,#0x14</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x00109</td><td class="instr">sub A,0x1000</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="FS" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0010c</td><td class="instr">inc A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0010d</td><td class="instr">ld XL,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0010e</td><td class="instr">srl A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x0010f</td><td class="instr">swap A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x00110</td><td class="instr">sla 0x15</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="FS" /></td><td class=" E" /></tr>
|
||||
<tr><td>0x00112</td><td class="instr">cp A,#0xfe</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="FS" /></td><td class=" E" /></tr>
|
||||
</tbody>
|
||||
<thead>
|
||||
<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th><th class="n">9</th><th class="n">10</th><th class="n">11</th><th class="n">12</th><th class="n">13</th><th class="n">14</th><th class="n">15</th><th class="n">16</th><th class="n">17</th><th class="n">18</th><th class="n">19</th><th class="n">20</th><th class="n">21</th>
|
||||
</thead>
|
||||
</table>
|
||||
</a>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user