55 lines
999 B
ArmAsm
55 lines
999 B
ArmAsm
;================================
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; Show some instructions
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; return when a key is pressed
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;================================
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instructions:
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;===================
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; init screen
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jsr TEXT
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jsr HOME
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bit KEYRESET
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;===================
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; init vars
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lda #0
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sta DRAW_PAGE
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lda #<inst_text
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sta OUTL
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lda #>inst_text
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sta OUTH
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jsr move_and_print
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jsr move_and_print
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jsr move_and_print
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jsr move_and_print
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jsr move_and_print
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jsr move_and_print
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jsr move_and_print
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jsr wait_until_keypressed ; tail call?
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rts
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; 0 1 2 3
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; 0123456789012345678901234567890123456789
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inst_text:
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.byte 6, 0, "*** RASTERBARS IN SPACE ***",0
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.byte 7, 3, "BY: VINCE 'DEATER' WEAVER",0
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.byte 6, 5, "WWW.DEATER.NET/WEAVE/VMWPROD",0
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.byte 0, 7,"=======================================",0
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.byte 1,9, "ARROWS: LEFT/RIGHT -- A/Z: UP/DOWN",0
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.byte 1,10, "SPACE: FIRE -- ,/.: ????",0
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.byte 1,11, "ESC: QUITS",0
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.asciiz "M: TOGGLE SOUND, CURRENTLY ON"
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