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17 lines
669 B
ArmAsm
17 lines
669 B
ArmAsm
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; Implementation of screen-layout related functions for Challenger 1P
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.include "osiscreen.inc"
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C1P_SCR_BASE := $D000 ; Base of C1P video RAM
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C1P_VRAM_SIZE = $0400 ; Size of C1P video RAM (1 kB)
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C1P_SCR_WIDTH = $18 ; Screen width
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C1P_SCR_HEIGHT = $18 ; Screen height
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C1P_SCR_FIRSTCHAR = $85 ; Offset of cursor position (0, 0) from base
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; of video RAM
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C1P_SCROLL_DIST = $20 ; Memory distance for scrolling by one line
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osi_screen_funcs C1P_SCR_BASE, C1P_VRAM_SIZE, C1P_SCR_FIRSTCHAR, \
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C1P_SCR_WIDTH, C1P_SCR_HEIGHT, C1P_SCROLL_DIST
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