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55 lines
1.2 KiB
ArmAsm
55 lines
1.2 KiB
ArmAsm
;
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; Ullrich von Bassewitz, 2003-03-14
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;
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; int __fastcall__ raise (int sig);
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;
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.import jmpvec
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.include "signal.inc"
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;----------------------------------------------------------------------------
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; int __fastcall__ raise (int sig);
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_raise:
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cpx #0
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bne invalidsig
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cmp #SIGCOUNT
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bcs invalidsig
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; Save the signal number low byte, then setup the function vector
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pha
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asl a
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tax
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lda sigtable,x
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sta jmpvec+1
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lda sigtable+1,x
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sta jmpvec+2
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; Reset the signal handler to SIG_DFL (I don't like this because it may
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; introduce race conditions, but it's the simplest way to satisfy the
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; standard).
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lda #<___sig_dfl
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sta sigtable,x
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lda #>___sig_dfl
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sta sigtable+1,x
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; Restore the signal number and call the function
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pla ; Low byte
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ldx #0 ; High byte
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jsr jmpvec ; Call signal function
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; raise() returns zero on success and any other value on failure
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lda #0
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tax
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invalidsig:
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rts
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