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https://github.com/deater/dos33fsprogs.git
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85 lines
1006 B
ArmAsm
85 lines
1006 B
ArmAsm
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; VGI Myst for LOGO demo
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;.include "zp.inc"
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;.include "hardware.inc"
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VGI_BUFFER = $F0
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VGI_TYPE = $F0
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P0 = $F1
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P1 = $F2
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P2 = $F3
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P3 = $F4
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P4 = $F5
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P5 = $F6
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P6 = $F7
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VGIL = $F8
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VGIH = $F9
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TEMP0 = $FA
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TEMP1 = $FB
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TEMP2 = $FC
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TEMP3 = $FD
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TEMP4 = $FE
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TEMP5 = $FF
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vgi_myst:
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; swap in ROM
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; READ_ROM_NO_WRITE
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bit $C08A
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; save ZP
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ldx #$FF
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save_loop:
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lda $0,X
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sta vgi_save,X
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dex
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bne save_loop
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jsr vgi_make_tables
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lda #$20
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sta $E6 ; setup page1
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; get pointer to image data
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; Rocket
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lda #<rocket_data
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sta VGIL
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lda #>rocket_data
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sta VGIH
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jsr play_vgi
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; restore ZP
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ldx #$FF
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restore_loop:
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lda vgi_save,X
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sta $00,X
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dex
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bne restore_loop
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; restore settings
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; READ_RAM1_WRITE_RAM1
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bit $C08B
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bit $C08B
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rts
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.include "vgi_common.s"
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.include "rocket.data"
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vgi_save = $a00
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