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A2osX/BIN/SH.S.CORE.txt
Rémy GIBERT a81b81a13c Kernel 0.93+
2019-07-25 08:13:56 +02:00

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NEW
AUTO 3,1
.LIST OFF
*--------------------------------------
CORE.Init >LDYAI 256
>SYSCALL GetMem
bcs .9
>STYA ZPArgVBuf
txa
>STA.G CORE.hArgVBuf
.9 rts
*--------------------------------------
CORE.Quit >LDA.G CORE.hArgVBuf
beq CORE.FUNCRESET
>SYSCALL FreeMem
CORE.FUNCRESET >LDA.G hFuncList
beq CORE.Quit.9
>SYSCALL SListFree
>STZ.G hFuncList
CORE.Quit.9 rts
*--------------------------------------
* http://heirloom.sourceforge.net/sh/sh.1.html
*--------------------------------------
* Input : ZPArgVBuf (String)
* Tokenize ZPArgVBuf
* :LOOP
* if CmdSep=| :
* set hStdIn = hStdOut
* set hStdOut = Std
* GetCmd from line until | or EOL
* if CmdSep=| :
* create PIPE
* set hStdOut -> PIPE
* CORE.Exec &
* :LOOP
* else CORE.Exec
*--------------------------------------
* SET VAR = `cmd args`, FOR VAR IN `cmd args`
* create PIPE
* set hStdOut -> PIPE
* CORE.Exec `cmd args` &
* set READMODE
* set hStdIn = hStdOut
* set hStdOut = Std
*--------------------------------------
CORE.Run.SYN lda #E.SYN
sec
rts
CORE.Run >LDYA ZPInputBufPtr Save Actual cmd for looping
>STYA ZPInputCmdPtr
>LDYA ZPArgVBuf
>STYA ZPArgVBufPtr
lda #0 Reset ArgV Buffer
sta (ZPArgVBuf)
lda #S.PS.F.HOLD
>STA.G CORE.PSFlags
lda #$ff
>STA.G CORE.IntCmd assume external
jsr CORE.GetCharNB
bcc .11
lda #0 EOF
jsr CMD.EXIT.A
bcs .9
jsr IO.Reset
lda #0
sec
rts Ending 0, CS,A=0
.11 cmp #'|'
bne .21
jsr IO.Pipe.In
bcs .9
jsr CORE.GetNextCharNB Skip |
bcs CORE.Run.SYN
bra .3
.21 pha
jsr IO.Reset
pla
.3 cmp #C.CR empty line ?
bne .33
jsr CORE.GetNextChar skip CR...
bra .8
.33 cmp #'#' commented line?
bne .2
.12 jsr CORE.SkipLine
.8 jsr IO.Reset
lda #0
clc
.9 rts EOL, CS,A=0
.2 >LDA.G bFuncMode
bpl .4
jmp CORE.AddFunc
.4 >LDYA L.CMD internal command ?
jsr CORE.LookupInputBuf
bcc .41
.40 jsr CORE.ArgV.Add external cmd, go check context
bra .42
.41 jsr CORE.SkipCharsA
txa
>STA.G CORE.IntCmd
.42 jsr CORE.StkGet
bcs CORE.Run.7 no particular context, exec...
tax
>LDA.G CORE.IntCmd
bmi .45
and #$3F
cmp #C.SWITCH SWITCH....FI ?
bcs CORE.Run.7
.45 txa
bpl .43 context is FALSE, skip line
asl
bmi CORE.Run.7 parent context is true, exec
.43 jsr CORE.GetCharNB
bcs .44 EOF
cmp #C.CR
beq .44
cmp #';' TODO ";"
beq .44
jsr CORE.GetNextChar
bra .43
.44 jsr CORE.GetNextCharNB Skip EoL char
clc
.99 rts
*--------------------------------------
CORE.Run.5 >LDYA L.CORE.IO
jsr CORE.LookupInputBuf
bcs CORE.Run.6
jsr CORE.SkipCharsA
jsr CORE.IO.JMP
bcs CORE.Run.RTS
bra CORE.Run.7
CORE.Run.6 jsr CORE.ArgV.Add
CORE.Run.7 jsr CORE.GetCharNB
bcs CORE.ExecCmd.1 Nothing to skip
jsr CORE.IsEndCmd
bcs CORE.Run.5
cmp #'|'
bne CORE.ExecCmd skip CR, ;
jsr IO.Pipe.Out
bcs CORE.Run.RTS
jsr CORE.IO.AMP run in background
bra CORE.ExecCmd.1 Do not skip |
CORE.Run.RTS rts
*--------------------------------------
* Input : ZPArgVBuf
*--------------------------------------
CORE.ExecCmd jsr CORE.GetNextCharNB Skip EoL char
CORE.ExecCmd.1 lda #0
sta (ZPArgVBufPtr)
>LDYA ZPArgVBuf
>STYA ZPArgVBufPtr
>LDA.G CORE.IntCmd
bmi CORE.ExecExtCmd
asl
tax
jmp (J.CMD,x)
CORE.ExecExtCmd >PUSHB.G CORE.PSFlags
>LDYA ZPArgVBuf
>SYSCALL execv
CORE.ExecExtCmd.Exit
bcs .9
tax CPID
>LDA.G CORE.PSFlags
and #S.PS.F.HOLD
bne .4
txa
>PUSHA
>PUSHBI 1
>PUSHW L.MSG.PID
ldy #S.PS.hStdErr
lda (pPS),y
>SYSCALL fprintf
rts
.4 >SLEEP Suspend this PID
sec
ldy #S.PS.RC CPID will update S.PS.RC
lda (pPs),y
bne .9
.8 clc
.9 rts
*--------------------------------------
CORE.AddFunc >LDYA L.ENDCMD
jsr CORE.LookupInputBuf
bcs .8
.7 lda #0
>STA.G bFuncMode
jsr .8 add "END"
bcs .9
jmp CMD.END.FUNC Cleanup Stk
.9 jmp CORE.Run.SYN
.8 ldy #0
.80 lda (ZPInputBufPtr),y
iny
beq .82
cmp #C.CR
bne .80
.82 lda #0
>PUSHYA DataLen
>PUSHW ZPInputBufPtr DataPtr
lda (pData)
tay
dey skip C.FUNC
lda (pData),y KeyID
>PUSHA
dey
lda (pData),y KeyID
>PUSHA
>LDA.G hFuncList
>SYSCALL SListAddData
bcs .9
*--------------------------------------
CORE.SkipLine jsr CORE.GetNextCharNB
bcs .8 EOF
cmp #C.CR EOL
bne CORE.SkipLine
jsr CORE.GetNextChar skip CR...
.8 rts
*--------------------------------------
* search ZPInputBufPtr/ZPArgVBufPtr in Y,A table
*--------------------------------------
CORE.LookupInputBuf
>STYA ZPPtr1
>LDYA ZPInputBufPtr
bra CORE.Lookup
CORE.LookupArgVBuf
>STYA ZPPtr1
>LDYA ZPArgVBufPtr
CORE.Lookup >STYA ZPPtr2
ldx #0
.1 ldy #$ff
.2 iny
lda (ZPPtr2),y
beq .3 Src Keyword end
jsr CORE.IsSpaceOrEndCmd
bcc .3 Src Keyword end
lda (ZPPtr1),y
beq .4 Table Keyword end
lda (ZPPtr2),y
jsr ToUpperCase
cmp (ZPPtr1),y
beq .2
bra .4
.3 lda (ZPPtr1),y
bne .4
tya Keyword Len
dey
clc
.8 rts
.4 inc ZPPtr1
bne .5
inc ZPPtr1+1
.5 lda (ZPPtr1)
bne .4
inc ZPPtr1
bne .6
inc ZPPtr1+1
.6 inx
lda (ZPPtr1) Array Ending 0, must be an external Cmd....
bne .1
lda #E.SYN
sec
rts
*--------------------------------------
* ArgV
*--------------------------------------
CORE.ArgV.Dup >STYA ZPPtr1
phy
pha
lda #1
sta ZPPtr2
stz ZPPtr2+1
.1 lda (ZPPtr1)
beq .4
ldy #0
.2 iny
lda (ZPPtr1),y
bne .2
jsr CORE.ArgV.DupNextY
bra .1
.4 pla
ply
>STYA ZPPtr1
>LDYA ZPPtr2
>SYSCALL GetMem
bcs .9
>STYA ZPPtr2
lda #$ff Arg count-1 (skip $0)
pha
.5 lda (ZPPtr1)
sta (ZPPtr2)
beq .8
pla
inc
pha
ldy #0
.6 iny
lda (ZPPtr1),y
sta (ZPPtr2),y
bne .6
jsr CORE.ArgV.DupNextY
bra .5
.8 pla Arg count
clc
.9 rts
*--------------------------------------
CORE.ArgV.DupNextY
tya
sec
adc ZPPtr1
sta ZPPtr1
bcc .1
inc ZPPtr1+1
.1 tya
sec
adc ZPPtr2
sta ZPPtr2
bcc .8
inc ZPPtr2+1
.8 rts
*--------------------------------------
CORE.ArgV.Add >LDYA ZPArgVBufPtr
>STYA ZPArgVBufPrev Save String start of Expand
lda #C.SPACE
sta M32.TMP
jsr CORE.GetCharNB
bcs .9
cmp #'"'
bne .10
sta M32.TMP
bra .1
.10 cmp #'('
bne .11
ldx #')'
stx M32.TMP
bra .12
.11 cmp #'`'
bne .12
sta M32.TMP
.12 jsr CORE.ArgV.PutChar
.1 jsr CORE.GetNextChar
bcs .5
.2 cmp M32.TMP
bne .3
jsr CORE.GetNextChar
bra .5
.3 ldy M32.TMP
cpy #C.SPACE
bne .40
jsr CORE.IsEndCmd
bcc .5
.40 jsr CORE.ArgV.PutChar
.4 jsr CORE.GetNextChar
bcc .2
.5 lda #0
jsr CORE.ArgV.PutChar
>LDYA ZPArgVBufPrev
>SYSCALL ExpandStr
bcs .9
phx
>STYA ZPPtr1
>LDYA ZPArgVBufPrev
>STYA ZPArgVBufPtr
ldy #$ff
.7 iny
lda (ZPPtr1),y
beq .8
jsr CORE.ArgV.PutChar
bra .7
.8 tya
beq .81
lda #0
jsr CORE.ArgV.PutChar
.81 pla
>SYSCALL freemem
.9 rts
*--------------------------------------
CORE.ArgV.PutChar
sta (ZPArgVBufPtr)
CORE.ArgV.NextChar
inc ZPArgVBufPtr
bne .8
inc ZPArgVBufPtr+1
.8 rts
*--------------------------------------
CORE.ArgV.Next lda (ZPArgVBufPtr)
beq .8
>LDYA ZPArgVBufPtr
>STYA ZPArgVBufPrev
.1 jsr CORE.ArgV.NextChar
lda (ZPArgVBufPtr)
bne .1
jsr CORE.ArgV.NextChar
lda (ZPArgVBufPtr)
.8 rts
*--------------------------------------
* IO
*--------------------------------------
CORE.IO.JMP txa
asl
tax
jmp (J.CORE.IO,x)
CORE.IO.AMP >LDA.G CORE.PSFlags
and #$ff^S.PS.F.HOLD
sta (pData),y
clc
CORE.IO.RTS rts
CORE.IO.IN lda #O.RDONLY+O.TEXT
jsr CORE.IO.Open
bcs CORE.IO.RTS
jmp IO.Set.In
CORE.IO.OUTA
CORE.IO.1OUTA lda #O.WRONLY+O.APPEND+O.CREATE+O.TEXT
bra CORE.IO.OUT.1
CORE.IO.OUT
CORE.IO.1OUT lda #O.WRONLY+O.TRUNC+O.CREATE+O.TEXT
CORE.IO.OUT.1 jsr CORE.IO.Open
bcs CORE.IO.RTS
jmp IO.Set.Out
CORE.IO.2OUTA lda #O.WRONLY+O.APPEND+O.CREATE+O.TEXT
bra CORE.IO.2OUT.1
CORE.IO.2OUT lda #O.WRONLY+O.TRUNC+O.CREATE+O.TEXT
CORE.IO.2OUT.1 jsr CORE.IO.Open
bcs CORE.IO.RTS
jmp IO.Set.Err
*--------------------------------------
CORE.IO.Open pha Open Mode
jsr CORE.GetCharNB
bcs .9 no arg left....
jsr CORE.ArgV.Add Get Filename
>PUSHWZ Aux type
>PUSHBI S.FI.T.TXT ftype
pla
>PUSHA flags
>LDYA ZPArgVBufPrev
>STYA ZPArgVBufPtr Discard filename
>SYSCALL fopen
rts
.9 pla
lda #E.SYN
sec
rts
*--------------------------------------
* Input Buffer
*--------------------------------------
CORE.IsSpaceOrEndCmd
cmp #C.SPACE
beq CORE.IsEndCmd.8
CORE.IsEndCmd cmp #';'
beq CORE.IsEndCmd.8
cmp #C.CR
beq CORE.IsEndCmd.8
cmp #'|'
beq CORE.IsEndCmd.8
sec
rts
CORE.IsEndCmd.8 clc
rts
*--------------------------------------
CORE.GetCharNB jsr CORE.GetChar
bcs CORE.GetNextCharNB.RTS
jsr CORE.CheckCharNB
bcc CORE.GetNextCharNB.RTS
*--------------------------------------
CORE.GetNextCharNB
jsr CORE.GetNextChar
bcs CORE.GetNextCharNB.RTS
jsr CORE.CheckCharNB
bcs CORE.GetNextCharNB
CORE.GetNextCharNB.RTS
rts
*--------------------------------------
CORE.CheckCharNB
cmp #C.SPACE
beq .9
cmp #C.LF
beq .9
cmp #C.TAB
beq .9
clc
.9 rts
*--------------------------------------
CORE.GetNextChar
inc ZPInputBufPtr
bne CORE.GetChar
inc ZPInputBufPtr+1
*--------------------------------------
CORE.GetChar lda (ZPInputBufPtr)
beq .9
clc
rts
.9 sec
rts
*--------------------------------------
CORE.SkipCharsA clc
adc ZPInputBufPtr
sta ZPInputBufPtr
bcc .8
inc ZPInputBufPtr+1
.8 rts
*--------------------------------------
* Stack
*--------------------------------------
CORE.StkCheck sec
adc (pData) StackPtr
cmp #CORE.STACK.MAX
lda #E.STKOVERFLOW
rts
*--------------------------------------
CORE.StkPushYAX phx
jsr CORE.StkPushYA
bcs CORE.StkPushYA.9
bra CORE.StkPush.1
*--------------------------------------
CORE.StkPushYA phy
jsr CORE.StkPush
bcc CORE.StkPush.1
CORE.StkPushYA.9
plx
rts
*--------------------------------------
CORE.StkPush pha
CORE.StkPush.1 lda (pData) StackPtr
inc
cmp #CORE.STACK.MAX
beq .9
sta (pData) StackPtr
tay
pla
sta (pData),y
* clc
rts
.9 pla
lda #E.STKOVERFLOW
* sec
rts
*--------------------------------------
CORE.StkGetCtx jsr CORE.StkGet
tax
bcs .1 no context...
cmp #$C0 in a call...
beq .1 CS
and #$80 get current..
lsr becomes parent
bra .2
.1 lda #$40 ...set Parent = true
.2 >STA.G CORE.Test
txa
rts
*--------------------------------------
CORE.StkPullInputBufPtr
jsr CORE.StkPull
bcs .9
sta ZPInputBufPtr
jsr CORE.StkPull
bcs .9
sta ZPInputBufPtr+1
.9 rts
*--------------------------------------
CORE.StkPull jsr CORE.StkGet
bcs .9
dey
pha
tya
sta (pData) StackPtr
pla
.9 rts
*--------------------------------------
CORE.StkGet lda (pData) StackPtr
beq CORE.StkErr
tay
lda (pData),y
clc
rts
*--------------------------------------
CORE.StkErr lda #E.STACKERROR
sec
rts
*--------------------------------------
MAN
SAVE USR/SRC/BIN/SH.S.CORE
LOAD USR/SRC/BIN/SH.S
ASM
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