143 lines
1.7 KiB
Plaintext
143 lines
1.7 KiB
Plaintext
/*
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* Apple I ASCII art slideshow.
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*/
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#define SLIDEPTR $06
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#define CDELAY 50
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#define MONITOR $FF00
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#define COUT $FFEF
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*=$0280
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ENTRY LDA #>MONITOR
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PHA
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LDA #<MONITOR
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PHA
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FRSTSLD LDA #<SLIDES
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STA SLIDEPTR
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LDA #>SLIDES
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STA SLIDEPTR+1
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SHOWSLD JSR PRCR
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SLOOP LDY #$00
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LDA (SLIDEPTR),Y
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BEQ PRTTL
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LSR
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LSR
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LSR
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LSR
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TAX
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LDA (SLIDEPTR),Y
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AND #$0F
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TAY
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LDA GREY2ASCII,Y
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RLDEC JSR COUT
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DEX
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BNE RLDEC
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INC SLIDEPTR
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BNE SLOOP
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INC SLIDEPTR+1
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BNE SLOOP
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PRTTL INY
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SEC
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LDA #40
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SBC (SLIDEPTR),Y
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LSR
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TAX
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LDA #$A0
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SPCS JSR COUT
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DEX
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BNE SPCS
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LDA (SLIDEPTR),Y
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TAX
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TLOOP INY
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LDA (SLIDEPTR),Y
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JSR COUT
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DEX
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BNE TLOOP
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INY
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TYA
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CLC
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ADC SLIDEPTR
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STA SLIDEPTR
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LDA #$00
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ADC SLIDEPTR+1
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STA SLIDEPTR+1
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LDA #$10
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JSR GETKYWT
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JSR PRCR
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LDY #$00
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LDA (SLIDEPTR),Y
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BEQ FRSTSLD
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BNE SHOWSLD
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GETKYWT PHA
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TXA
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PHA
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TYA
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PHA
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LDY #$FF
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GKW1 LDX #$FF
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GKW2 LDA $D011
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BPL GKW3
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PLA
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TAY
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PLA
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TAX
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PLA
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LDA $D010
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RTS
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GKW3 DEX
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BNE GKW2
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DEY
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BNE GKW1
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PLA
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TAY
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PLA
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TAX
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PLA
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SEC
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SBC #$01
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BNE GETKYWT
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LDA #$00
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RTS
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PRCR PHA
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LDA #$8D
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JSR COUT
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PLA
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RTS
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GREY2ASCII
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.BYT $A0, $AE, $BA, $AC, $BB, $A1, $AD, $DE
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.BYT $AB, $BD, $BF, $A6, $AA, $A5, $A3, $C0
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/*.ASC " .:,;!-^+=?&*%#@" */
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SLIDES
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#include "woz.rle"
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.BYT 4
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.ASC "WOZ "
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#include "jobs.rle"
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.BYT 11
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.ASC "STEVE JOBS "
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#include "apple-logo-striped.rle"
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.BYT 27
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.ASC "HAPPY 30TH BIRTHDAY APPLE! "
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#include "applei.rle"
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.BYT 29
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.ASC "WOZ AND JOBS HOLDING APPLE I "
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#include "appleii.rle"
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.BYT 9
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.ASC "APPLE II "
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#include "mac128k.rle"
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.BYT 10
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.ASC "MACINTOSH "
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#include "imac.rle"
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.BYT 5
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.ASC "IMAC "
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#include "ipod.rle"
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.BYT 5
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.ASC "IPOD "
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#include "macbook.rle"
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.BYT 12
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.ASC "MACBOOK PRO "
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#include "apple-logo.rle"
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.BYT 19
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.ASC "THE NEXT THIRTY... "
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.BYT 0
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