diff options
| -rw-r--r-- | firmware/crt0.S | 34 |
1 files changed, 14 insertions, 20 deletions
diff --git a/firmware/crt0.S b/firmware/crt0.S index fee5a30fee..6a15324567 100644 --- a/firmware/crt0.S +++ b/firmware/crt0.S @@ -267,48 +267,42 @@ irq_handler: lea _iramstart,%a3 lea _iramend,%a4 .iramloop: + move.l (%a2)+,(%a3)+ cmp.l %a3,%a4 - beq .iramloopend - move.w (%a2)+,(%a3)+ - bra .iramloop -.iramloopend: + bhi.b .iramloop #endif lea _edata,%a2 lea _end,%a4 - clr.l %d0 .edataloop: + clr.l (%a2)+ cmp.l %a2,%a4 - beq .edataloopend - move.w %d0,(%a2)+ - bra .edataloop -.edataloopend: + bhi.b .edataloop lea _datacopy,%a2 lea _datastart,%a3 lea _dataend,%a4 + cmp.l %a2,%a3 + beq.b .nodatacopy .dataloop: + move.l (%a2)+,(%a3)+ cmp.l %a3,%a4 - beq .dataloopend - move.w (%a2)+,(%a3)+ - bra .dataloop -.dataloopend: + bhi.b .dataloop +.nodatacopy: /* Munge the main stack */ + move.l #0xdeadbeef,%d0 lea stackbegin,%a2 lea stackend,%a4 - move.l #0xdeadbeef,%d0 + move.l %a4,%sp .mungeloop: - cmp.l %a2,%a4 - beq .mungeloopend move.l %d0,(%a2)+ - bra .mungeloop -.mungeloopend: + cmp.l %a2,%a4 + bhi.b .mungeloop - lea stackend,%sp jsr main .hoo: - bra .hoo + bra.b .hoo .section .resetvectors vectors: |