reorganize everything

OperatingSystem/Applications/hellord/main.asm

@@ -0,0 +1,37 @@
+.include "extern_symbols.s" ;include monitor symbols.
+    START_ADDR   .EQU 0x8000
+    
+
+    org START_ADDR  
+com_header:
+    jp com_prg
+    db 0x00
+    dw 0x00, 0x00, 0x00   ;always 0
+    dw [START_ADDR]     ;start addr
+    dw [_eof]           ;end of file
+    dw [_eof - START_ADDR]  ;length
+    dc 48,0x00
+    
+com_prg:
+
+
+    ld hl,[_str]
+_l1:
+    ld a, (hl)
+    or a
+    ret z
+    out (CS_SIO_A_D),a
+_wait:
+    ld a,1
+    out (CS_SIO_A_C),A
+    in A,(CS_SIO_A_C) ;read RRx
+    bit 0,A
+    jr z,_wait
+    inc hl
+    jr _l1
+
+_str:
+    db 10,13,"Hello World",10,13,0
+
+
+_eof: