pokecrystal-board/macros/data.asm

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NASM
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; Value macros
percent EQUS "* $ff / 100"
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; Constant data (db, dw, dl) macros
dwb: MACRO
dw \1
db \2
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ENDM
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dbw: MACRO
db \1
dw \2
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ENDM
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dbbw: MACRO
db \1, \2
dw \3
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ENDM
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dbww: MACRO
db \1
dw \2, \3
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ENDM
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dbwww: MACRO
db \1
dw \2, \3, \4
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ENDM
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dn: MACRO ; nybbles
rept _NARG / 2
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db ((\1) << 4) | (\2)
shift
shift
endr
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ENDM
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dc: MACRO ; "crumbs"
rept _NARG / 4
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db ((\1) << 6) | ((\2) << 4) | ((\3) << 2) | (\4)
shift
shift
shift
shift
endr
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ENDM
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dx: MACRO
x = 8 * ((\1) - 1)
rept \1
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db ((\2) >> x) & $ff
x = x + -8
endr
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ENDM
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dt: MACRO ; three-byte (big-endian)
dx 3, \1
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ENDM
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dd: MACRO ; four-byte (big-endian)
dx 4, \1
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ENDM
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bigdw: MACRO ; big-endian word
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dx 2, \1 ; db HIGH(\1), LOW(\1)
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ENDM
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dba: MACRO ; dbw bank, address
rept _NARG
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dbw BANK(\1), \1
shift
endr
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ENDM
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dab: MACRO ; dwb address, bank
rept _NARG
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dwb \1, BANK(\1)
shift
endr
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ENDM
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dba_pic: MACRO ; dbw bank, address
db BANK(\1) - PICS_FIX
dw \1
ENDM
dbpixel: MACRO
if _NARG >= 4
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; x tile, x pxl, y tile, y pxl
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db \1 * 8 + \3, \2 * 8 + \4
else
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; x, y
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db \1 * 8, \2 * 8
endc
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ENDM
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dsprite: MACRO
; y tile, y pxl, x tile, x pxl, vtile offset, attributes
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db (\1 * 8) % $100 + \2, (\3 * 8) % $100 + \4, \5, \6
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ENDM
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menu_coords: MACRO
; x1, y1, x2, y2
db \2, \1 ; start coords
db \4, \3 ; end coords
ENDM
bcd: MACRO
rept _NARG
dn ((\1) % 100) / 10, (\1) % 10
shift
endr
ENDM
sine_table: MACRO
; \1 samples of sin(x) from x=0 to x<32768 (pi radians)
x = 0
rept \1
dw (sin(x) + (sin(x) & $ff)) >> 8 ; round up
x = x + DIV(32768, \1) ; a circle has 65536 "degrees"
endr
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ENDM