39 lines
606 B
ArmAsm
39 lines
606 B
ArmAsm
#include "em_abs.h"
|
|
.sect .text; .sect .rom; .sect .data; .sect .bss; .sect .text
|
|
.define .cfu
|
|
|
|
! $Id$
|
|
|
|
|
|
.cfu:
|
|
movl (sp)+,r2
|
|
movpsl r1
|
|
bicl2 $~040,r1
|
|
bicpsw $040 ! integer overflow traps must be ignored
|
|
movl (sp)+,r0
|
|
cmpl (sp),$4
|
|
bneq 1f
|
|
tstl (sp)+
|
|
tstf (sp)
|
|
bgeq 5f
|
|
mnegf (sp),(sp)
|
|
5:
|
|
cvtfl (sp)+,-(sp)
|
|
2:
|
|
cmpl r0,$4
|
|
bneq 4f
|
|
bispsw r1 ! restore trap enable bit
|
|
jmp (r2)
|
|
1:
|
|
cmpl (sp)+,$8
|
|
bneq 4f
|
|
tstd (sp)
|
|
bgeq 3f
|
|
mnegd (sp),(sp)
|
|
3:
|
|
cvtdl (sp)+,-(sp)
|
|
br 2b
|
|
4:
|
|
pushl $EILLINS
|
|
jmp .fat
|