mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-23 07:35:19 +00:00
310 lines
4.8 KiB
Plaintext
310 lines
4.8 KiB
Plaintext
NEW
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AUTO 3,1
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.LIST OFF
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*--------------------------------------
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CL.Init >LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPCLBuf
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txa
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>STA.G CL.hCLBuf
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.9 rts
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*--------------------------------------
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CL.PrintPrompt >PUSHW L.PS1
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>PUSHWI 0
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>SYSCALL Expand
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bcs .9
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phx
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>PUSHYA
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>PUSHBI 0
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>SYSCALL PrintF
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pla
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>SYSCALL FreeMem
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.1 >PUSHW L.MSG.PROMPT
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>PUSHBI 0
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>SYSCALL PrintF
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.9 rts
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*--------------------------------------
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CL.READN0A tax
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CL.READN0X
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>PUSHW ZPCLBuf
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>PUSHW L.FMT.Byte
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txa
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>PUSHA
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>PUSHBI 1
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>SYSCALL SPrintF
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bcs .9
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lda #$ff
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>STA.G CL.bReady
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* clc
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.9 rts
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*--------------------------------------
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CL.CHARIN tax
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>LDA.G CL.bEscMode \e ?
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beq .4
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cpx #'['
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beq .8 \e[
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lda #0
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sta (pData),y Y=bEscMode
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txa
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ldx #EscChars.Cnt-1
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.1 cmp EscChars,x
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beq .2
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dex
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bpl .1
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.8 rts invalid \e[ sequence
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.2 >LDA.G READ.N
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bne .3
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lda EscChars.Remap,x
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bra CL.READN0A
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.3 txa
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asl
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tax
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jmp (J.ESC,x)
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*--------------------------------------
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.4 cpx #C.ESC
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bne .5
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lda #$ff
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>STA.G CL.bEscMode
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clc
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rts
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.5 >LDA.G READ.N
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beq CL.READN0X
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cpx #C.SPACE
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bcc CL.CHARIN.CTRL
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cpx #C.DEL
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bne CL.Insert
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*--------------------------------------
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* Erase char BEFORE cursor
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*--------------------------------------
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>LDA.G CL.Len
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beq .8
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>LDA.G CL.Ptr
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beq .8
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>LDA.G bREAD.S
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bmi .6
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lda #C.BS
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>SYSCALL PutChar
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.6 >DEC.G CL.Ptr
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jmp CL.DEL
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*--------------------------------------
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CL.Insert >LDA.G CL.Len
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>CMP.G READ.N
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beq .8 Buffer full, discard...
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inc
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>STA.G CL.Len
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pha
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.1 ply
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dey
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lda (ZPCLBuf),y Move from Ptr To end of buffer forward...
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iny
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sta (ZPCLBuf),y
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dey
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phy
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tya
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>CMP.G CL.Ptr
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bne .1
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ply Y=CL.Ptr
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* >LDA.G CL.Ptr
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txa
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sta (ZPCLBuf),y
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>INC.G CL.Ptr
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>LDA.G bREAD.S
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bmi .7
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txa
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>SYSCALL PutChar
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jsr CL.PrintEOL
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.7 >LDA.G READ.N READ N = 1, don't wait for CR
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dec
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bne .8
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lda #$ff
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>STA.G CL.bReady
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.8 clc
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rts
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*--------------------------------------
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CL.CHARIN.CTRL cpx #C.CR
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beq .18
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cpx #C.EOF
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beq .18
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cpx #3 Ctrl-C
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beq CL.CLR
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cpx #26 Ctrl-Z
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bne .8
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jmp CL.SUPPR
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.18 jsr CheckLFAfterCR Check for any extra LF
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bcs .9
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lda #$ff
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>STA.G CL.bReady
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.8 clc
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.9 rts
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*--------------------------------------
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CL.CLR lda (ZPCLBuf)
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beq CL.Reset.1
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>LDA.G bREAD.S
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bmi CL.Reset.1
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.1 >LDA.G CL.Ptr
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>CMP.G CL.Len
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beq .2
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inc
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>STA.G CL.Ptr
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lda #C.FS
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>SYSCALL PutChar
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bra .1
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.2 ldy #0
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.3 lda #C.DEL
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sta (ZPCLBuf),y
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iny
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lda (ZPCLBuf),y
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bne .3
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jsr CL.PrintCLBuf
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*--------------------------------------
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CL.Reset lda #0
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sta (ZPCLBuf)
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CL.Reset.1 >STA.G CL.Ptr
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>STA.G CL.Len
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>STA.G CL.bReady
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>STA.G CL.bEscMode
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rts
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*--------------------------------------
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CL.BS >LDA.G CL.Ptr
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beq .9
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dec
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sta (pData),y
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>LDA.G bREAD.S
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bmi .9
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lda #C.BS
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>SYSCALL PutChar
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.9 rts
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*--------------------------------------
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CL.NAK >LDA.G CL.Ptr
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>CMP.G CL.Len
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beq .9
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inc
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>STA.G CL.Ptr
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>LDA.G bREAD.S
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bmi .9
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lda #C.FS
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>SYSCALL PutChar
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.9 rts
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*--------------------------------------
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* Erase char UNDER cursor
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*--------------------------------------
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CL.SUPPR >LDA.G CL.Len
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beq CL.PrintEOL.8
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>LDA.G CL.Ptr
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>CMP.G CL.Len
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beq CL.PrintEOL.8
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*--------------------------------------
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CL.DEL pha
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.1 ply
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iny
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lda (ZPCLBuf),y
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dey
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sta (ZPCLBuf),y
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iny
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phy
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tya
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>CMP.G CL.Len
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bne .1
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pla
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>DEC.G CL.Len
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>LDA.G bREAD.S
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bpl CL.PrintEOL
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clc
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rts
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*--------------------------------------
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CL.PrintEOL >LDA.G CL.Ptr
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.1 >CMP.G CL.Len
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beq .2
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pha
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tay
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lda (ZPCLBuf),y
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>SYSCALL PutChar
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pla
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inc
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bra .1
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.2 lda #C.SPACE
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>SYSCALL PutChar
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>LDA.G CL.Ptr
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.3 >CMP.G CL.Len
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beq .4
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pha
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lda #C.BS
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>SYSCALL PutChar
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pla
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inc
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bra .3
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.4 lda #C.BS
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>SYSCALL PutChar
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CL.PrintEOL.8 clc
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rts
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*--------------------------------------
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CL.PrintCLBuf >PUSHW ZPCLBuf
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ldy #S.PS.hStdOut
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lda (pPS),y
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>SYSCALL FPutS
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rts
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*--------------------------------------
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MAN
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SAVE usr/src/bin/sh.s.cl
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LOAD usr/src/bin/sh.s
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ASM
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