A2osX/BIN/SH.S.CL.txt
2020-02-14 17:32:52 +01:00

305 lines
4.8 KiB
Plaintext
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

NEW
AUTO 3,1
.LIST OFF
*--------------------------------------
CL.Init >LDYAI 256
>SYSCALL GetMem
bcs .9
>STYA ZPCLBuf
txa
>STA.G CL.hCLBuf
.9 rts
*--------------------------------------
CL.PrintPrompt >PUSHW L.PS1
>PUSHWI 0
>SYSCALL Expand
bcs .9
phx
>PUSHYA
>PUSHBI 0
>SYSCALL printf
pla
>SYSCALL FreeMem
.1 >PUSHW L.MSG.PROMPT
>PUSHBI 0
>SYSCALL printf
.9 rts
*--------------------------------------
CL.READN0A tax
CL.READN0X
>PUSHW ZPCLBuf
>PUSHW L.FMT.Byte
txa
>PUSHA
>PUSHBI 1
>SYSCALL sprintf
bcs .9
lda #$ff
>STA.G CL.bReady
* clc
.9 rts
*--------------------------------------
CL.CHARIN tax
>LDA.G CL.bEscMode \e ?
beq .4
cpx #'['
beq .8 \e[
lda #0
sta (pData),y Y=bEscMode
txa
ldx #EscChars.Cnt-1
.1 cmp EscChars,x
beq .2
dex
bpl .1
.8 rts invalid \e[ sequence
.2 >LDA.G READ.N
bne .3
lda EscChars.Remap,x
bra CL.READN0A
.3 txa
asl
tax
jmp (J.ESC,x)
*--------------------------------------
.4 cpx #C.ESC
bne .5
lda #$ff
>STA.G CL.bEscMode
clc
rts
.5 >LDA.G READ.N
beq CL.READN0X
cpx #C.SPACE
bcc CL.CHARIN.CTRL
cpx #C.DEL
bne CL.Insert
*--------------------------------------
* Erase char BEFORE cursor
*--------------------------------------
>LDA.G CL.Len
beq .8
>LDA.G CL.Ptr
beq .8
>LDA.G bREAD.S
bmi .6
lda #C.BS
>SYSCALL PutChar
.6 >DEC.G CL.Ptr
jmp CL.DEL
*--------------------------------------
CL.Insert >LDA.G CL.Len
>CMP.G READ.N
beq .8 Buffer full, discard...
inc
>STA.G CL.Len
pha
.1 ply
dey
lda (ZPCLBuf),y Move from Ptr To end of buffer forward...
iny
sta (ZPCLBuf),y
dey
phy
tya
>CMP.G CL.Ptr
bne .1
ply Y=CL.Ptr
* >LDA.G CL.Ptr
txa
sta (ZPCLBuf),y
>INC.G CL.Ptr
>LDA.G bREAD.S
bmi .7
txa
>SYSCALL PutChar
jsr CL.PrintEOL
.7 >LDA.G READ.N READ N = 1, don't wait for CR
dec
bne .8
lda #$ff
>STA.G CL.bReady
.8 clc
rts
*--------------------------------------
CL.CHARIN.CTRL cpx #C.CR
beq .18
cpx #C.EOF
beq .18
cpx #3 Ctrl-C
beq CL.CLR
cpx #26 Ctrl-Z
bne .8
jmp CL.SUPPR
.18 jsr CheckLFAfterCR Check for any extra LF
bcs .9
lda #$ff
>STA.G CL.bReady
.8 clc
.9 rts
*--------------------------------------
CL.CLR lda (ZPCLBuf)
beq CL.RESET.1
>LDA.G bREAD.S
bmi CL.RESET.1
.1 >LDA.G CL.Ptr
>CMP.G CL.Len
beq .2
inc
>STA.G CL.Ptr
lda #C.FS
>SYSCALL PutChar
bra .1
.2 ldy #0
.3 lda #C.DEL
sta (ZPCLBuf),y
iny
lda (ZPCLBuf),y
bne .3
jsr CL.PrintCLBuf
*--------------------------------------
CL.RESET lda #0
sta (ZPCLBuf)
CL.RESET.1 >STA.G CL.Ptr
>STA.G CL.Len
>STA.G CL.bReady
>STA.G CL.bEscMode
rts
*--------------------------------------
CL.BS >LDA.G CL.Ptr
beq .9
dec
sta (pData),y
>LDA.G bREAD.S
bmi .9
lda #C.BS
>SYSCALL PutChar
.9 rts
*--------------------------------------
CL.NAK >LDA.G CL.Ptr
>CMP.G CL.Len
beq .9
inc
>STA.G CL.Ptr
>LDA.G bREAD.S
bmi .9
lda #C.FS
>SYSCALL PutChar
.9 rts
*--------------------------------------
* Erase char UNDER cursor
*--------------------------------------
CL.SUPPR >LDA.G CL.Len
beq CL.PrintEOL.8
>LDA.G CL.Ptr
>CMP.G CL.Len
beq CL.PrintEOL.8
*--------------------------------------
CL.DEL pha
.1 ply
iny
lda (ZPCLBuf),y
dey
sta (ZPCLBuf),y
iny
phy
tya
>CMP.G CL.Len
bne .1
pla
>DEC.G CL.Len
>LDA.G bREAD.S
bpl CL.PrintEOL
clc
rts
*--------------------------------------
CL.PrintEOL >LDA.G CL.Ptr
.1 >CMP.G CL.Len
beq .2
pha
tay
lda (ZPCLBuf),y
>SYSCALL PutChar
pla
inc
bra .1
.2 lda #' '
>SYSCALL PutChar
>LDA.G CL.Ptr
.3 >CMP.G CL.Len
beq .4
pha
lda #C.BS
>SYSCALL PutChar
pla
inc
bra .3
.4 lda #C.BS
>SYSCALL PutChar
CL.PrintEOL.8 clc
rts
*--------------------------------------
CL.PrintCLBuf >PUSHW ZPCLBuf
ldy #S.PS.hStdOut
lda (pPs),y
>SYSCALL fputs
rts
*--------------------------------------
MAN
SAVE USR/SRC/BIN/SH.S.CL
LOAD USR/SRC/BIN/SH.S
ASM