mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-03 10:49:58 +00:00
61 lines
779 B
ArmAsm
61 lines
779 B
ArmAsm
#include "setarch.h"
|
|
|
|
#include "defines.h"
|
|
|
|
#if defined (__H8300SX__)
|
|
.global _strcmp
|
|
_strcmp:
|
|
mov.l er0,er2
|
|
loop:
|
|
mov.b @er2+,r0l
|
|
beq eos
|
|
sub.b @er1+,r0l
|
|
beq loop
|
|
exts.l #2,er0
|
|
rts
|
|
eos:
|
|
sub.b @er1,r0l
|
|
exts.l #2,er0
|
|
rts
|
|
#else
|
|
.section .text
|
|
.align 2
|
|
.global _strcmp
|
|
_strcmp:
|
|
MOVP A0P,A2P
|
|
MOVP A1P,A3P
|
|
.L5:
|
|
mov.b @A2P+,A1L
|
|
beq .L3
|
|
mov.b @A3P+,A0L
|
|
cmp.b A0L,A1L
|
|
beq .L5
|
|
#ifdef __NORMAL_MODE__
|
|
sub #1,A3P
|
|
#else
|
|
subs #1,A3P
|
|
#endif
|
|
.L3:
|
|
mov.b @(-1,A2P),A0L
|
|
mov.b @A3P,A1L
|
|
sub.b A1L,A0L
|
|
; We have to sign extend the result to 32bits just in case
|
|
; we are using 32bit integers.
|
|
#ifdef __H8300H__
|
|
exts.w r0
|
|
exts.l er0
|
|
#else
|
|
#ifdef __H8300S__
|
|
exts.w r0
|
|
exts.l er0
|
|
#else
|
|
bld #7,r0l
|
|
subx r0h,r0h
|
|
subx r1l,r1l
|
|
subx r1h,r1h
|
|
#endif
|
|
#endif
|
|
rts
|
|
.end
|
|
#endif
|