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60 lines
1.0 KiB
NASM
60 lines
1.0 KiB
NASM
; Coordinate macros
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DEF hlcoord EQUS "coord hl,"
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DEF bccoord EQUS "coord bc,"
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DEF decoord EQUS "coord de,"
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MACRO coord
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; register, x, y[, origin]
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if _NARG < 4
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ld \1, (\3) * SCREEN_WIDTH + (\2) + wTilemap
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else
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ld \1, (\3) * SCREEN_WIDTH + (\2) + \4
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endc
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ENDM
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DEF hlbgcoord EQUS "bgcoord hl,"
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DEF bcbgcoord EQUS "bgcoord bc,"
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DEF debgcoord EQUS "bgcoord de,"
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MACRO bgcoord
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; register, x, y[, origin]
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if _NARG < 4
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ld \1, (\3) * BG_MAP_WIDTH + (\2) + vBGMap0
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else
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ld \1, (\3) * BG_MAP_WIDTH + (\2) + \4
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endc
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ENDM
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MACRO dwcoord
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; x, y
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rept _NARG / 2
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dw (\2) * SCREEN_WIDTH + (\1) + wTilemap
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shift 2
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endr
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ENDM
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MACRO ldcoord_a
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; x, y[, origin]
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if _NARG < 3
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ld [(\2) * SCREEN_WIDTH + (\1) + wTilemap], a
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else
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ld [(\2) * SCREEN_WIDTH + (\1) + \3], a
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endc
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ENDM
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MACRO lda_coord
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; x, y[, origin]
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if _NARG < 3
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ld a, [(\2) * SCREEN_WIDTH + (\1) + wTilemap]
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else
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ld a, [(\2) * SCREEN_WIDTH + (\1) + \3]
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endc
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ENDM
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MACRO menu_coords
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; x1, y1, x2, y2
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db \2, \1 ; start coords
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db \4, \3 ; end coords
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ENDM
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