37 lines
562 B
ArmAsm
37 lines
562 B
ArmAsm
#include "em_abs.h"
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# $Header$
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.globl .cfu
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.cfu:
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movl (sp)+,r2
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movpsl r1
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bicl2 $~040,r1
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bicpsw $040 # integer overflow traps must be ignored
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movl (sp)+,r0
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cmpl (sp),$4
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bneq Lddt
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tstl (sp)+
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tstf (sp)
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bgeq L1
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mnegf (sp),(sp)
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L1:
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cvtfl (sp)+,-(sp)
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L2:
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cmpl r0,$4
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bneq Lerr
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bispsw r1 # restore trap enable bit
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jmp (r2)
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Lddt:
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cmpl (sp)+,$8
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bneq Lerr
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tstd (sp)
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bgeq L3
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mnegd (sp),(sp)
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L3:
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cvtdl (sp)+,-(sp)
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brb L2
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Lerr:
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pushl $EILLINS
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jmp .fat
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