A2osX/SBIN/INITD.S.txt
2021-07-24 22:42:23 +02:00

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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.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 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 jsr CS.RUN.ETCINIT
bcs .99
.2 >SYSCALL GetChar
bcs .99
cmp #C.CR Ctrl.M
bne .3
ldx #2
jsr CS.RUN.EXEC.X
bra .2
.3 cmp #16 Ctrl.P
bne .4
ldx #4
jsr CS.RUN.EXEC.X
bra .2
.4 cmp #12 Ctrl.L
bne .5
ldx #6
jsr CS.RUN.EXEC.X
bra .2
.5 cmp #4 Ctrl.D
bne .2
ldx #8
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.OK .AZ " [OK]"
MSG.KO .AZ " [%h]\r\n"
.FIN
ETCINIT .AZ "${ROOT}etc/init"
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