22 lines
484 B
NASM
22 lines
484 B
NASM
; SYSTEM EQUATES
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kbd_read = $c000
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kbd_strobe_clr = $c010
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rd_vbl_bar = $c019
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; Speaker toggle
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speaker = $c030
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; Mode controllers
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txtclr = $c050 ; select bitmap mode
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txtset = $c051 ; select text mode
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mixclr = $c052 ; full screen
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mixset = $c053 ; split screen (last four lines are text)
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txtpage1 = $c054 ; select text buffer 1 ($0400)
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txtpage2 = $c055 ; select text buffer 2 ($0x00)
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lores = $c056 ; display low res graphics
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hires = $c057 ; display high res graphics |