A2osX/SBIN/INITD.S.txt

NEW
  AUTO 3,1
				.LIST OFF
				.OP	65C02
				.OR	$2000
				.TF sbin/initd
*--------------------------------------
INITDDBG		.EQ 0
*--------------------------------------
				.INB inc/macros.i
				.INB inc/a2osx.i
				.INB inc/mli.i
*--------------------------------------
* Zero Page Segment, up to 32 bytes
*--------------------------------------
				.DUMMY
				.OR ZPBIN
ZS.START
BufPtr			.BS 2
hBuf			.BS 1
hFile			.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 #16					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.CTRLR		.DA MSG.CTRLR
				.DO INITDDBG=1
L.MSG.ETCINIT	.DA MSG.ETCINIT
L.MSG.START		.DA MSG.START
L.MSG.OK		.DA MSG.OK
L.MSG.KO		.DA MSG.KO
				.FIN
L.ETCINIT		.DA ETCINIT
L.CMDS			.DA BINSH
				.DA BINMEM
				.DA BINPS
				.DA BINLSOF
				.DA BINSHUTDOWN
				.DA 0
*--------------------------------------
CS.INIT
*--------------------------------------
CS.QUIT			clc
				rts
*--------------------------------------
CS.RUN			.DO INITDDBG=1
				>LDYA L.MSG.START
				>SYSCALL PutS
				.FIN
				
				ldy #S.PS.PID
				lda (pPS),y
				cmp #1
				bne .9

*				bra .55

				ldy #S.PS.hStdIn
				lda (pPS),y
				>SYSCALL FEOF
				bcs .99

				tay
				bne .1

				>SYSCALL GetChar
				bcs .99

				cmp #18					CTRL-R for Root mode
				bne .1

.55				>LDYA L.MSG.CTRLR
				>SYSCALL PutS

				ldx #0
				jsr CS.RUN.EXEC.X

				>SLEEP
*--------------------------------------
.1				.DO INITDDBG=1
				>LDYA L.MSG.ETCINIT
				>SYSCALL PutS
				.FIN
				
				jsr CS.RUN.ETCINIT
				bcs .99
*--------------------------------------
.2				>SYSCALL GetChar
				bcs .99

				ldy #4

.3				cmp CTRLCHARS,y
				beq .7

				dey
				bpl .3

				bra .2

.7				tya
				asl
				tax
				jsr CS.RUN.EXEC.X
				bra .2

.9				lda #E.SYN
				sec
.99				rts
*--------------------------------------
CS.RUN.ETCINIT	>LDYAI 256
				>SYSCALL GetMem
				>STYA BufPtr
				stx hBuf

				>PUSHW L.ETCINIT
				>PUSHBI	O.RDONLY+O.TEXT
				>PUSHBI S.FI.T.TXT
				>PUSHWZ
				>SYSCALL FOpen
				bcc .10

				pha
				.DO INITDDBG=1
				jsr CS.RUN.ERRMSG
				.FIN
				jsr .81

				pla
				sec
				rts

.10				sta hFile

.1				>PUSHB hFile
				>PUSHW BufPtr
				>PUSHWI 256
				>SYSCALL FGetS
				bcs .80

				lda (BufPtr)
				cmp #'#'
				beq .1

				.DO INITDDBG=1
				>PUSHW BufPtr
				>PUSHBI 0
				>SYSCALL PrintF
				.FIN

				>PUSHW BufPtr
				>PUSHBI S.PS.F.NOHUP+S.PS.F.HOLD
				>SYSCALL ExecL

				.DO INITDDBG=1
				bcs .2

				>LDYA L.MSG.OK
				>SYSCALL PutS

				.FIN
				>SLEEP
				bra .1

				.DO INITDDBG=1
.2				jsr CS.RUN.ERRMSG
				bra .1
				.FIN

.80				lda hFile
				>SYSCALL FClose

.81				lda hBuf
				>SYSCALL FreeMem

				rts
*--------------------------------------
CS.RUN.EXEC.X	>PUSHW L.CMDS,x
				>PUSHBI S.PS.F.HOLD
				>SYSCALL ExecL
				rts
*--------------------------------------
				.DO INITDDBG=1
CS.RUN.ERRMSG	tax
				>PUSHW L.MSG.KO
				txa
				>PUSHA
				>PUSHBI 1
				>SYSCALL PrintF
				rts
				.FIN
*--------------------------------------
CS.DOEVENT		sec
				rts
*--------------------------------------
CS.END
*--------------------------------------
MSG.CTRLR		.AZ "INITD:Entering ROOT mode..."
				.DO INITDDBG=1
MSG.START		.AZ "INITD:Starting..."
MSG.OK			.AZ " [OK]"
MSG.KO			.CZ " [%h]\r\n"
MSG.ETCINIT		.AS "INITD:Executing "
				.FIN
ETCINIT			.AZ "${ROOT}etc/init"
*--------------------------------------
CTRLCHARS		.DA #19,#13,#16,#12,#4
*--------------------------------------
BINSH			.AZ "${ROOT}bin/sh"
BINMEM			.AZ "${ROOT}bin/mem"
BINPS			.AZ "${ROOT}bin/ps"
BINLSOF			.AZ "${ROOT}bin/lsof"
BINSHUTDOWN		.AZ "${ROOT}bin/shutdown"
*--------------------------------------
				.DUMMY
				.OR 0
DS.START
DS.END			.ED
*--------------------------------------
MAN
SAVE usr/src/sbin/initd.s
ASM