mirror of https://github.com/A2osX/A2osX.git
349 lines
6.5 KiB
Plaintext
349 lines
6.5 KiB
Plaintext
NEW
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PREFIX
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AUTO 4,1
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.LIST OFF
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.OP 65C02
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.OR $2000
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.TF ROOT/BMP2PIX
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*--------------------------------------
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.INB INC/MACROS.I
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.INB INC/A2OSX.I
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.INB INC/GUI.I
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.INB INC/LIBGUI.I
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*--------------------------------------
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ZPPTR1 .EQ ZPBIN
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ZPInputBufPtr .EQ ZPBIN+2
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ZPInputBufLen .EQ ZPBIN+4
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ZPInputDataPtr .EQ ZPBIN+6
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ZPBMPRowBytes .EQ ZPBIN+8
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ZPPIXRowBytes .EQ ZPBIN+10
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ZPBufPtr .EQ ZPBIN+12
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ZPLineCount .EQ ZPBIN+14
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*--------------------------------------
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* File Header (16 Bytes)
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*--------------------------------------
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CS.START cld
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jmp (.1,x)
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.DA #$61 6502,Level 1 (65c02)
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.DA #1 BIN Layout Version 1
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.DA 0
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.DA CS.END-CS.START CS
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.DA DS.END-DS.START DS
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.DA #64 SS
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.DA #16 ZP
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.DA 0
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*--------------------------------------
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* Relocation Table
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*--------------------------------------
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.1 .DA CS.INIT
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.DA CS.RUN
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.DA CS.DOEVENT
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.DA CS.QUIT
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L.MSG.USAGE .DA MSG.USAGE
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L.MSG.FILE.OK .DA MSG.FILE.OK
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L.MSG.HEADER.OK .DA MSG.HEADER.OK
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L.MSG.HEADER.KO .DA MSG.HEADER.KO
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L.MSG.DONE .DA MSG.DONE
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.DA 0
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*--------------------------------------
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CS.INIT
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.1 >INC.G ArgCount
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>SYSCALL ArgV
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bcs .7
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>STYA ZPPtr1
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lda (ZPPtr1)
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cmp #'-'
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bne .4
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ldy #1
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lda (ZPPtr1),y
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ldx OptionList
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.2 cmp OptionList,x
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beq .3
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dex
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bne .2
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.99 >LDYA L.MSG.USAGE
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>SYSCALL printf
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lda #E.SYN
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sec
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rts
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.3 ldy OptionVars-1,x
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lda #$80
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sta (pData),y
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bra .1
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.4 >LDA.G hInputBuf
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bne .5
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jsr CS.INIT.OPENINPUT
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bcc .1 scan for any other args
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rts
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.5 >LDA.G hOutputFile
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bne .99
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jsr CS.INIT.CREATEOUTPUT
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bcc .1 scan for any other args
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rts
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.7 >LDA.G hOutputFile
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beq .99
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>LDYAI 256
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>SYSCALL getmem
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bcs CS.INIT.RTS
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>STYA ZPBufPtr
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txa
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>STA.G hBuf
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.8 clc
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CS.INIT.RTS rts
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*--------------------------------------
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CS.INIT.OPENINPUT
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>PUSHWI 0 Aux type
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>PUSHBI 0 Type
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>PUSHBI O.RDONLY
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>LDYA ZPPtr1
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>SYSCALL LoadFile
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bcs CS.INIT.RTS
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>STYA ZPInputBufLen
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>PUSHYA
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txa
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>STA.G hInputBuf
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>SYSCALL GetMemPtr
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>STYA ZPInputBufPtr
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>LDYA L.MSG.FILE.OK
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>SYSCALL printf
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lda (ZPInputBufPtr)
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cmp #'B'
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bne .99
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ldy #1
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lda (ZPInputBufPtr),y
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cmp #'M'
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bne .99
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ldy #$1C BBP LO
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lda (ZPInputBufPtr),y
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cmp #1
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bne .99
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iny BBP HI
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lda (ZPInputBufPtr),y
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bne .99
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ldy #$16 H LO
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lda (ZPInputBufPtr),y
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>STA.G PIX.Header+S.BM.H
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pha
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eor #$ff
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sta ZPLineCount
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ldy #$17 H HI
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lda (ZPInputBufPtr),y
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>STA.G PIX.Header+S.BM.H+1
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>PUSHA
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eor #$ff
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sta ZPLineCount+1
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pla
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>PUSHA
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ldy #$12 W LO
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lda (ZPInputBufPtr),y
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>STA.G PIX.Header+S.BM.W
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pha
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ldy #$13 W HI
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lda (ZPInputBufPtr),y
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>STA.G PIX.Header+S.BM.W+1
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>PUSHA
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pla
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>PUSHA
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>LDYA L.MSG.HEADER.OK
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>SYSCALL printf
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clc
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rts
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.99 >LDYA L.MSG.HEADER.KO
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>SYSCALL printf
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lda #E.IBIN
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sec
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rts
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*--------------------------------------
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CS.INIT.CREATEOUTPUT
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>PUSHWI 0 Aux type
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>PUSHBI $CB PIX Type
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>PUSHBI O.WRONLY+O.CREATE
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>LDYA ZPPtr1
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>SYSCALL FOpen
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bcs .9
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>STA.G hOutputFile
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.9 rts
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*--------------------------------------
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CS.RUN lda #S.BM.F.BBP1
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>STA.G PIX.Header+S.BM.F
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>LDA.G PIX.Header+S.BM.W
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sta ZPBMPRowBytes
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sta ZPPIXRowBytes
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iny
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lda (pData),y
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sta ZPBMPRowBytes+1
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sta ZPPIXRowBytes+1
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lda ZPBMPRowBytes
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and #%00011111
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beq .1
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lda ZPBMPRowBytes
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and #%11100000
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clc
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adc #%00100000
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bcc .1
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inc ZPBMPRowBytes+1
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.1 lsr ZPBMPRowBytes+1
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ror
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lsr ZPBMPRowBytes+1
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ror
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lsr ZPBMPRowBytes+1
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ror
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sta ZPBMPRowBytes
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lda ZPPIXRowBytes
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and #%00000111
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beq .2
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lda ZPPIXRowBytes
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and #%11111000
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clc
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adc #%00001000
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bcc .2
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inc ZPPIXRowBytes+1
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.2 lsr ZPPIXRowBytes+1
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ror
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lsr ZPPIXRowBytes+1
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ror
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lsr ZPPIXRowBytes+1
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ror
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sta ZPPIXRowBytes
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>STA.G PIX.Header+S.BM.RowBytes
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lda ZPInputBufPtr
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clc
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adc ZPInputBufLen
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sta ZPInputDataPtr
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lda ZPInputBufPtr+1
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adc ZPInputBufLen+1
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sta ZPInputDataPtr+1
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>PUSHWI S.BM
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>PUSHEA.G PIX.Header
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>LDA.G hOutputFile
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>SYSCALL FWrite
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bcs CS.RUN.RTS
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CS.RUN.LOOP inc ZPLineCount
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bne .1
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inc ZPLineCount+1
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beq .8
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.1 lda ZPInputDataPtr
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sec
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sbc ZPBMPRowBytes
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sta ZPInputDataPtr
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lda ZPInputDataPtr+1
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sbc ZPBMPRowBytes+1
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sta ZPInputDataPtr+1
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>LDYA ZPBufPtr
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>STYA ZPPTR1
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ldy #0
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.2 lda (ZPInputDataPtr),y
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tax
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lda TWIST,x
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sta (ZPPTR1)
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inc ZPPTR1
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bne .3
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inc ZPPTR1+1
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.3 iny
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cpy ZPPIXRowBytes
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bne .2
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>PUSHW ZPPIXRowBytes
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>PUSHW ZPBufPtr
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>LDA.G hOutputFile
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>SYSCALL FWrite
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bcs CS.RUN.RTS
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bra CS.RUN.LOOP
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.8 >LDYA L.MSG.DONE
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>SYSCALL printf
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lda #0
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sec
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CS.RUN.RTS rts
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*--------------------------------------
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CS.DOEVENT sec
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rts
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*--------------------------------------
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CS.QUIT >LDA.G hBuf
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beq .1
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>SYSCALL FreeMem
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.1 >LDA.G hOutputFile
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beq .8
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>SYSCALL fclose
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.8 clc
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rts
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*--------------------------------------
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CS.END
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*--------------------------------------
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.INB ROOT/X.TWIST.G
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*--------------------------------------
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OptionList >PSTR "Vv"
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OptionVars .DA #bVerbose,#bVerbose
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MSG.USAGE .AZ "Usage : BMP2PIX BMP-File \r\n -V : Verbose Mode\r\n"
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MSG.FILE.OK .AZ "BMP Loaded, %D Bytes Read\r\n"
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MSG.HEADER.OK .AZ "BMP Size : %D x %D pixels\r\n"
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MSG.HEADER.KO .AZ "Invalid Input File Format\r\n"
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MSG.DONE .AZ "All Done!!!\r\n"
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*--------------------------------------
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.DUMMY
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.OR 0
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DS.START
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PIX.Header .BS S.BM
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ArgCount .BS 1
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hInputBuf .BS 1
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hOutputFile .BS 1
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bVerbose .BS 1
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hBuf .BS 1
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DS.END
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.ED
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*--------------------------------------
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MAN
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SAVE /A2OSX.BUILD/ROOT/BMP2PIX.S
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ASM
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