diff options
Diffstat (limited to 'newlib/libc/sys/h8300hms/crt0.S')
| -rw-r--r-- | newlib/libc/sys/h8300hms/crt0.S | 30 |
1 files changed, 12 insertions, 18 deletions
diff --git a/newlib/libc/sys/h8300hms/crt0.S b/newlib/libc/sys/h8300hms/crt0.S index 6394f6841..05634113c 100644 --- a/newlib/libc/sys/h8300hms/crt0.S +++ b/newlib/libc/sys/h8300hms/crt0.S @@ -9,12 +9,10 @@ _start: mov.w #_stack,sp mov.w #_edata,r0 - mov.w #_end,r1 - sub.w r2,r2 -.Loop: mov.w r2,@r0 - adds #2,r0 - cmp r1,r0 - blo .Loop + mov.w #_end,r2 + sub.w r1,r1 + sub.w r0,r2 + jsr @_memset #ifdef __ELF__ mov.l #__fini,r0 jsr @_atexit @@ -43,12 +41,10 @@ _stack: .word 1 _start: mov.l #_stack,sp mov.l #_edata,er0 - mov.l #_end,er1 - sub.w r2,r2 ; not sure about alignment requirements -.Loop: mov.w r2,@er0 ; playing it safe for now - adds #2,er0 - cmp.l er1,er0 - blo .Loop + mov.l #_end,er2 + sub.w r1,r1 + sub.l er0,er2 + jsr @_memset #ifdef __ELF__ mov.l #__fini,er0 jsr @_atexit @@ -77,12 +73,10 @@ _stack: .long 1 _start: mov.l #_stack,sp mov.l #_edata,er0 - mov.l #_end,er1 - sub.w r2,r2 ; not sure about alignment requirements -.Loop: mov.w r2,@er0 ; playing it safe for now - adds #2,er0 - cmp.l er1,er0 - blo .Loop + mov.l #_end,er2 + sub.w r1,r1 + sub.l er0,er2 + jsr @_memset #ifdef __ELF__ mov.l #__fini,er0 jsr @_atexit |