A2osX/BIN/KILL.S.txt
2022-11-02 07:54:30 +01:00

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NEW
PREFIX
AUTO 4,1
.LIST OFF
.OP 65C02
.OR $2000
.TF bin/kill
*--------------------------------------
.INB inc/macros.i
.INB inc/a2osx.i
*--------------------------------------
* Zero Page Segment, up to 32 bytes
*--------------------------------------
.DUMMY
.OR ZPBIN
ZS.START
ZPTmpPtr .BS 2
ZS.END .ED
*--------------------------------------
* File Header (16 Bytes)
*--------------------------------------
CS.START cld
jmp (.1,x)
.DA #$61 6502,Level 1 (65c02)
.DA #1 BIN Layout Version 1
.DA #0 S.PS.F
.DA #0
.DA CS.END-CS.START Code Length To Relocate
.DA DS.END-DS.START Data Segment to Allocate
.DA #16 Stack Size
.DA #ZS.END-ZS.START Zero Page Size
.DA 0
*--------------------------------------
.1 .DA CS.INIT
.DA CS.RUN
.DA CS.DOEVENT
.DA CS.QUIT
L.MSG.USAGE .DA MSG.USAGE
L.SSCANF.PID .DA SSCANF.PID
.DA 0
*--------------------------------------
CS.INIT clc
rts
*--------------------------------------
CS.RUN ldy #S.PS.ARGC
lda (pPS),y
beq .9
lda #1
>STA.G Signal
.1 >INC.G ArgIndex
>SYSCALL ArgV
bcs .9
>STYA ZPTmpPtr
lda (ZPTmpPtr)
cmp #'-'
bne .2
ldy #1
lda (ZPTmpPtr),y
beq .9
cmp #'0'
bcc .9
cmp #'9'+1
bcs .9
and #$0F
>STA.G Signal
bra .1
.9 >LDYA L.MSG.USAGE
>SYSCALL PutS
lda #E.SYN
sec
rts
.2 >PUSHW ZPTmpPtr
>PUSHW L.SSCANF.PID
>PUSHEA.G PID
>PUSHBI 2 1 Ptr
>SYSCALL SScanF
bcs .9
>PUSHB.G PID
>PUSHB.G Signal
>SYSCALL Kill
bcs .99
lda #0
sec
.99 rts
*--------------------------------------
CS.DOEVENT sec do not discard TIMER event
rts
*--------------------------------------
CS.QUIT clc
rts
*--------------------------------------
CS.END
MSG.USAGE .CS "Usage : KILL <signal> PID\r\n"
.CS " -0 : No Signal\r\n"
.CS " -1 : SIGQUIT\r\n"
.CZ " -2 : SIGKILL\r\n"
SSCANF.PID .CZ "%d"
*--------------------------------------
.DUMMY
.OR 0
DS.START
ArgIndex .BS 1
Signal .BS 1
PID .BS 1
DS.END
.ED
*--------------------------------------
MAN
SAVE usr/src/bin/kill.s
ASM