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81 lines
1.2 KiB
NASM
81 lines
1.2 KiB
NASM
; Value macros
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DEF percent EQUS "* $ff / 100"
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MACRO bcd2
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dn ((\1) / 1000) % 10, ((\1) / 100) % 10
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dn ((\1) / 10) % 10, (\1) % 10
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ENDM
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MACRO bcd3
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dn ((\1) / 100000) % 10, ((\1) / 10000) % 10
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dn ((\1) / 1000) % 10, ((\1) / 100) % 10
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dn ((\1) / 10) % 10, (\1) % 10
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ENDM
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; used in data/pokemon/base_stats/*.asm
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MACRO tmhm
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; initialize bytes to 0
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FOR n, (NUM_TM_HM + 7) / 8
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DEF _tm{d:n} = 0
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ENDR
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; set bits of bytes
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REPT _NARG
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IF DEF(\1_TMNUM)
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DEF n = (\1_TMNUM - 1) / 8
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DEF i = (\1_TMNUM - 1) % 8
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DEF _tm{d:n} |= 1 << i
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ELSE
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FAIL "\1 is not a TM or HM move"
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ENDC
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SHIFT
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ENDR
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; output bytes
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FOR n, (NUM_TM_HM + 7) / 8
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db _tm{d:n}
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ENDR
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ENDM
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; Constant data (db, dw, dl) macros
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MACRO dbw
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db \1
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dw \2
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ENDM
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MACRO dwb
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dw \1
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db \2
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ENDM
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MACRO dn ; nybbles
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REPT _NARG / 2
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db ((\1) << 4) | (\2)
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SHIFT 2
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ENDR
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ENDM
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MACRO dba ; dbw bank, address
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REPT _NARG
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dbw BANK(\1), \1
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SHIFT
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ENDR
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ENDM
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MACRO dab ; dwb address, bank
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REPT _NARG
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dwb \1, BANK(\1)
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SHIFT
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ENDR
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ENDM
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MACRO sine_table
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; \1 samples of sin(x) from x=0 to x<32768 (pi radians)
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DEF x = 0
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REPT \1
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dw (sin(x) + (sin(x) & $ff)) >> 8 ; round up
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DEF x += DIV(32768, \1) ; a circle has 65536 "degrees"
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ENDR
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ENDM
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