A2osX/BIN/SHUTDOWN.S.txt

NEW
  AUTO 3,1
				.LIST OFF
				.OP	65C02
				.OR	$2000
				.TF bin/shutdown
*--------------------------------------
				.INB inc/macros.i
				.INB inc/a2osx.i
				.INB inc/kernel.i
*--------------------------------------
				.DUMMY
				.OR ZPBIN
ZS.START
ZPPtr1			.BS 2
Count			.BS 1
Index			.BS 1
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.EVENT
				.DA #0
				.DA CS.END-CS.START		Code Size (without Constants)
				.DA DS.END-DS.START		Data SegmentSize
				.DA #32					Stack Size
				.DA #ZS.END-ZS.START	Zero Page Size
				.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
.1				.DA CS.INIT
				.DA CS.RUN
				.DA CS.DOEVENT		
				.DA	CS.QUIT
L.MSG.USAGE		.DA MSG.USAGE
L.MSG.SHUTDOWN	.DA MSG.SHUTDOWN
L.MSG.PS		.DA MSG.PS
L.MSG.DEV		.DA MSG.DEV
				.DA 0
*--------------------------------------
CS.INIT			clc
				rts
*--------------------------------------
CS.RUN			>LDYA L.MSG.SHUTDOWN
				>SYSCALL PutS

				jsr CS.RUN.PS

				jsr CS.RUN.DEV
				
				>PUSHBI 1
				
				>PUSHBI 1				INITD
				>SYSCALL Kill

				lda #0
				sec
				rts
*--------------------------------------
CS.RUN.PS		stz Count

				ldx #0
				stx Index
				
.1				lda PS.Table.hPS,x
				beq .7

				>SYSCALL GetMemPtr
				>STYA ZPPtr1
				
.2				lda (ZPPtr1)
				bpl .4					HOLD ?
				
				ldy #S.PS.CPID
				lda (ZPPtr1),y

.3				jsr CS.GetPSByID
				bra .2
				
.4				ldy #S.PS.S
				lda (ZPPtr1),y
				cmp #S.PS.S.QUIT
				beq .6
				
				ldy #S.PS.PID
				lda (ZPPtr1),y
				beq .7					don't kill PS0
				
				cmp #1
				beq .7					don't kill INITD
				
				cmp (pPS),y				don't kill myself
				beq .7
				
				jsr CS.RUN.KILL
				
.5				ldy #S.PS.PPID
				lda (ZPPtr1),y
				bne .3					go kill parent if not 0
				
.6				inc Count

.7				>SLEEP

				inc Index
				ldx Index
				cpx #K.PS.MAX
				bne .1
				
				lda Count
				bne CS.RUN.PS
				
				sec
				rts
*--------------------------------------
CS.RUN.KILL		>PUSHW L.MSG.PS
				ldy #S.PS.PID
				lda (ZPPtr1),y
				>PUSHA
				
				ldy #S.PS.hARGV
				lda (ZPPtr1),y
				>SYSCALL GetMemPtr
				>PUSHYA
				
				>PUSHBI 3
				>SYSCALL PrintF
				
				>PUSHBI 1
				
				ldy #S.PS.PID
				lda (ZPPtr1),y
				>SYSCALL Kill
				rts
*--------------------------------------
CS.RUN.DEV		ldx #1
				stx Index
				
.1				lda Dev.Table-1,x
				sta ZPPtr1
				lda Dev.Table,x
				sta ZPPtr1+1
				beq .7

				>PUSHW L.MSG.DEV
				>PUSHB Index
				
				lda ZPPtr1
				clc
				adc #S.FD.DEV
				tay
				lda ZPPtr1+1
				adc /S.FD.DEV
				>PUSHYA
				
				>PUSHBI 3
				>SYSCALL PrintF
				
				
.7				inc Index
				inc Index

				ldx Index
				cpx #K.DEV.MAX*2+1
				bne .1				
				
				rts
*--------------------------------------
CS.GetPSByID	ldx #0

.1				ldy PS.Table.hPS,x
				beq .7

				pha
				tya

				phx
				>SYSCALL GetMemPtr
				>STYA ZPPtr1
				plx
				
				pla
				
				ldy #S.PS.PID
				cmp (ZPPtr1),y
				beq .8
				
.7				inx
				cpx #K.PS.MAX
				bne .1

*				sec				

				rts
				
.8				clc
				rts
*--------------------------------------
CS.DOEVENT		sec
				rts
*--------------------------------------
CS.QUIT			clc
				rts
*--------------------------------------
CS.END			
MSG.USAGE		.AS "Usage : SHUTDOWN <NEXT.STSTEM>\r\n"
				.AZ "   -T <seconds> : \r\n"
MSG.SHUTDOWN	.AZ "SHUTDOWN:System..."
MSG.PS			.AZ "SHUTDOWN:Killing process %3d, %s\r\n"
MSG.DEV			.AZ "SHUTDOWN:Closing device  %3d, %s\r\n"
*--------------------------------------
				.DUMMY
				.OR 0
DS.START
DS.END			.ED
*--------------------------------------
MAN
SAVE usr/src/bin/shutdown.s
ASM