diff options
author | Rangi <35663410+Rangi42@users.noreply.github.com> | 2020-07-07 19:48:22 -0400 |
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committer | GitHub <noreply@github.com> | 2020-07-07 19:48:22 -0400 |
commit | 9571c550b6a0dcb3a4f54513c881661a87271024 (patch) | |
tree | d73507228a57e4f3cece2fb93fe7df3a9439553f /engine/math | |
parent | c480632d5494d04f7f5f0298a31877a2293b564e (diff) | |
parent | bbf2f51a02b2544f1bef32a5868503b474ae2fef (diff) |
Merge pull request #263 from Rangi42/master
Syncing style with pokecrystal
Diffstat (limited to 'engine/math')
-rw-r--r-- | engine/math/bcd.asm | 78 | ||||
-rwxr-xr-x | engine/math/multiply_divide.asm | 158 | ||||
-rwxr-xr-x | engine/math/random.asm | 12 |
3 files changed, 124 insertions, 124 deletions
diff --git a/engine/math/bcd.asm b/engine/math/bcd.asm index 2d0b43df..1e5aedc9 100644 --- a/engine/math/bcd.asm +++ b/engine/math/bcd.asm @@ -6,39 +6,39 @@ DivideBCDPredef4:: DivideBCD:: xor a - ld [hDivideBCDBuffer], a - ld [hDivideBCDBuffer+1], a - ld [hDivideBCDBuffer+2], a + ldh [hDivideBCDBuffer], a + ldh [hDivideBCDBuffer+1], a + ldh [hDivideBCDBuffer+2], a ld d, $1 .mulBy10Loop ; multiply the divisor by 10 until the leading digit is nonzero ; to set up the standard long division algorithm - ld a, [hDivideBCDDivisor] + ldh a, [hDivideBCDDivisor] and $f0 jr nz, .next inc d - ld a, [hDivideBCDDivisor] + ldh a, [hDivideBCDDivisor] swap a and $f0 ld b, a - ld a, [hDivideBCDDivisor+1] + ldh a, [hDivideBCDDivisor+1] swap a - ld [hDivideBCDDivisor+1], a + ldh [hDivideBCDDivisor+1], a and $f or b - ld [hDivideBCDDivisor], a - ld a, [hDivideBCDDivisor+1] + ldh [hDivideBCDDivisor], a + ldh a, [hDivideBCDDivisor+1] and $f0 ld b, a - ld a, [hDivideBCDDivisor+2] + ldh a, [hDivideBCDDivisor+2] swap a - ld [hDivideBCDDivisor+2], a + ldh [hDivideBCDDivisor+2], a and $f or b - ld [hDivideBCDDivisor+1], a - ld a, [hDivideBCDDivisor+2] + ldh [hDivideBCDDivisor+1], a + ldh a, [hDivideBCDDivisor+2] and $f0 - ld [hDivideBCDDivisor+2], a + ldh [hDivideBCDDivisor+2], a jr .mulBy10Loop .next push de @@ -48,16 +48,16 @@ DivideBCD:: ld a, b swap a and $f0 - ld [hDivideBCDBuffer], a + ldh [hDivideBCDBuffer], a dec d jr z, .next2 push de call DivideBCD_divDivisorBy10 call DivideBCD_getNextDigit pop de - ld a, [hDivideBCDBuffer] + ldh a, [hDivideBCDBuffer] or b - ld [hDivideBCDBuffer], a + ldh [hDivideBCDBuffer], a dec d jr z, .next2 push de @@ -67,16 +67,16 @@ DivideBCD:: ld a, b swap a and $f0 - ld [hDivideBCDBuffer+1], a + ldh [hDivideBCDBuffer+1], a dec d jr z, .next2 push de call DivideBCD_divDivisorBy10 call DivideBCD_getNextDigit pop de - ld a, [hDivideBCDBuffer+1] + ldh a, [hDivideBCDBuffer+1] or b - ld [hDivideBCDBuffer+1], a + ldh [hDivideBCDBuffer+1], a dec d jr z, .next2 push de @@ -86,23 +86,23 @@ DivideBCD:: ld a, b swap a and $f0 - ld [hDivideBCDBuffer+2], a + ldh [hDivideBCDBuffer+2], a dec d jr z, .next2 push de call DivideBCD_divDivisorBy10 call DivideBCD_getNextDigit pop de - ld a, [hDivideBCDBuffer+2] + ldh a, [hDivideBCDBuffer+2] or b - ld [hDivideBCDBuffer+2], a + ldh [hDivideBCDBuffer+2], a .next2 - ld a, [hDivideBCDBuffer] - ld [hDivideBCDQuotient], a ; the same memory location as hDivideBCDDivisor - ld a, [hDivideBCDBuffer+1] - ld [hDivideBCDQuotient+1], a - ld a, [hDivideBCDBuffer+2] - ld [hDivideBCDQuotient+2], a + ldh a, [hDivideBCDBuffer] + ldh [hDivideBCDQuotient], a ; the same memory location as hDivideBCDDivisor + ldh a, [hDivideBCDBuffer+1] + ldh [hDivideBCDQuotient+1], a + ldh a, [hDivideBCDBuffer+2] + ldh [hDivideBCDQuotient+2], a pop de ld a, $6 sub d @@ -117,28 +117,28 @@ DivideBCD:: ret DivideBCD_divDivisorBy10: - ld a, [hDivideBCDDivisor+2] + ldh a, [hDivideBCDDivisor+2] swap a and $f ld b, a - ld a, [hDivideBCDDivisor+1] + ldh a, [hDivideBCDDivisor+1] swap a - ld [hDivideBCDDivisor+1], a + ldh [hDivideBCDDivisor+1], a and $f0 or b - ld [hDivideBCDDivisor+2], a - ld a, [hDivideBCDDivisor+1] + ldh [hDivideBCDDivisor+2], a + ldh a, [hDivideBCDDivisor+1] and $f ld b, a - ld a, [hDivideBCDDivisor] + ldh a, [hDivideBCDDivisor] swap a - ld [hDivideBCDDivisor], a + ldh [hDivideBCDDivisor], a and $f0 or b - ld [hDivideBCDDivisor+1], a - ld a, [hDivideBCDDivisor] + ldh [hDivideBCDDivisor+1], a + ldh a, [hDivideBCDDivisor] and $f - ld [hDivideBCDDivisor], a + ldh [hDivideBCDDivisor], a ret DivideBCD_getNextDigit: diff --git a/engine/math/multiply_divide.asm b/engine/math/multiply_divide.asm index 8bbc20a1..2fcda158 100755 --- a/engine/math/multiply_divide.asm +++ b/engine/math/multiply_divide.asm @@ -2,142 +2,142 @@ _Multiply:: ld a, $8 ld b, a xor a - ld [hProduct], a - ld [hMultiplyBuffer], a - ld [hMultiplyBuffer+1], a - ld [hMultiplyBuffer+2], a - ld [hMultiplyBuffer+3], a + ldh [hProduct], a + ldh [hMultiplyBuffer], a + ldh [hMultiplyBuffer+1], a + ldh [hMultiplyBuffer+2], a + ldh [hMultiplyBuffer+3], a .loop - ld a, [hMultiplier] + ldh a, [hMultiplier] srl a - ld [hMultiplier], a ; (aliases: hDivisor, hMultiplier, hPowerOf10) + ldh [hMultiplier], a ; (aliases: hDivisor, hMultiplier, hPowerOf10) jr nc, .smallMultiplier - ld a, [hMultiplyBuffer+3] + ldh a, [hMultiplyBuffer+3] ld c, a - ld a, [hMultiplicand+2] + ldh a, [hMultiplicand+2] add c - ld [hMultiplyBuffer+3], a - ld a, [hMultiplyBuffer+2] + ldh [hMultiplyBuffer+3], a + ldh a, [hMultiplyBuffer+2] ld c, a - ld a, [hMultiplicand+1] + ldh a, [hMultiplicand+1] adc c - ld [hMultiplyBuffer+2], a - ld a, [hMultiplyBuffer+1] + ldh [hMultiplyBuffer+2], a + ldh a, [hMultiplyBuffer+1] ld c, a - ld a, [hMultiplicand] ; (aliases: hMultiplicand) + ldh a, [hMultiplicand] ; (aliases: hMultiplicand) adc c - ld [hMultiplyBuffer+1], a - ld a, [hMultiplyBuffer] + ldh [hMultiplyBuffer+1], a + ldh a, [hMultiplyBuffer] ld c, a - ld a, [hProduct] ; (aliases: hProduct, hPastLeadingZeros, hQuotient) + ldh a, [hProduct] ; (aliases: hProduct, hPastLeadingZeros, hQuotient) adc c - ld [hMultiplyBuffer], a + ldh [hMultiplyBuffer], a .smallMultiplier dec b jr z, .done - ld a, [hMultiplicand+2] + ldh a, [hMultiplicand+2] sla a - ld [hMultiplicand+2], a - ld a, [hMultiplicand+1] + ldh [hMultiplicand+2], a + ldh a, [hMultiplicand+1] rl a - ld [hMultiplicand+1], a - ld a, [hMultiplicand] + ldh [hMultiplicand+1], a + ldh a, [hMultiplicand] rl a - ld [hMultiplicand], a - ld a, [hProduct] + ldh [hMultiplicand], a + ldh a, [hProduct] rl a - ld [hProduct], a + ldh [hProduct], a jr .loop .done - ld a, [hMultiplyBuffer+3] - ld [hProduct+3], a - ld a, [hMultiplyBuffer+2] - ld [hProduct+2], a - ld a, [hMultiplyBuffer+1] - ld [hProduct+1], a - ld a, [hMultiplyBuffer] - ld [hProduct], a + ldh a, [hMultiplyBuffer+3] + ldh [hProduct+3], a + ldh a, [hMultiplyBuffer+2] + ldh [hProduct+2], a + ldh a, [hMultiplyBuffer+1] + ldh [hProduct+1], a + ldh a, [hMultiplyBuffer] + ldh [hProduct], a ret _Divide:: xor a - ld [hDivideBuffer], a - ld [hDivideBuffer+1], a - ld [hDivideBuffer+2], a - ld [hDivideBuffer+3], a - ld [hDivideBuffer+4], a + ldh [hDivideBuffer], a + ldh [hDivideBuffer+1], a + ldh [hDivideBuffer+2], a + ldh [hDivideBuffer+3], a + ldh [hDivideBuffer+4], a ld a, $9 ld e, a .asm_37db3 - ld a, [hDivideBuffer] + ldh a, [hDivideBuffer] ld c, a - ld a, [hDividend+1] ; (aliases: hMultiplicand) + ldh a, [hDividend+1] ; (aliases: hMultiplicand) sub c ld d, a - ld a, [hDivisor] ; (aliases: hDivisor, hMultiplier, hPowerOf10) + ldh a, [hDivisor] ; (aliases: hDivisor, hMultiplier, hPowerOf10) ld c, a - ld a, [hDividend] ; (aliases: hProduct, hPastLeadingZeros, hQuotient) + ldh a, [hDividend] ; (aliases: hProduct, hPastLeadingZeros, hQuotient) sbc c jr c, .asm_37dce - ld [hDividend], a ; (aliases: hProduct, hPastLeadingZeros, hQuotient) + ldh [hDividend], a ; (aliases: hProduct, hPastLeadingZeros, hQuotient) ld a, d - ld [hDividend+1], a ; (aliases: hMultiplicand) - ld a, [hDivideBuffer+4] + ldh [hDividend+1], a ; (aliases: hMultiplicand) + ldh a, [hDivideBuffer+4] inc a - ld [hDivideBuffer+4], a + ldh [hDivideBuffer+4], a jr .asm_37db3 .asm_37dce ld a, b cp $1 jr z, .asm_37e18 - ld a, [hDivideBuffer+4] + ldh a, [hDivideBuffer+4] sla a - ld [hDivideBuffer+4], a - ld a, [hDivideBuffer+3] + ldh [hDivideBuffer+4], a + ldh a, [hDivideBuffer+3] rl a - ld [hDivideBuffer+3], a - ld a, [hDivideBuffer+2] + ldh [hDivideBuffer+3], a + ldh a, [hDivideBuffer+2] rl a - ld [hDivideBuffer+2], a - ld a, [hDivideBuffer+1] + ldh [hDivideBuffer+2], a + ldh a, [hDivideBuffer+1] rl a - ld [hDivideBuffer+1], a + ldh [hDivideBuffer+1], a dec e jr nz, .asm_37e04 ld a, $8 ld e, a - ld a, [hDivideBuffer] - ld [hDivisor], a ; (aliases: hDivisor, hMultiplier, hPowerOf10) + ldh a, [hDivideBuffer] + ldh [hDivisor], a ; (aliases: hDivisor, hMultiplier, hPowerOf10) xor a - ld [hDivideBuffer], a - ld a, [hDividend+1] ; (aliases: hMultiplicand) - ld [hDividend], a ; (aliases: hProduct, hPastLeadingZeros, hQuotient) - ld a, [hDividend+2] - ld [hDividend+1], a ; (aliases: hMultiplicand) - ld a, [hDividend+3] - ld [hDividend+2], a + ldh [hDivideBuffer], a + ldh a, [hDividend+1] ; (aliases: hMultiplicand) + ldh [hDividend], a ; (aliases: hProduct, hPastLeadingZeros, hQuotient) + ldh a, [hDividend+2] + ldh [hDividend+1], a ; (aliases: hMultiplicand) + ldh a, [hDividend+3] + ldh [hDividend+2], a .asm_37e04 ld a, e cp $1 jr nz, .asm_37e0a dec b .asm_37e0a - ld a, [hDivisor] ; (aliases: hDivisor, hMultiplier, hPowerOf10) + ldh a, [hDivisor] ; (aliases: hDivisor, hMultiplier, hPowerOf10) srl a - ld [hDivisor], a ; (aliases: hDivisor, hMultiplier, hPowerOf10) - ld a, [hDivideBuffer] + ldh [hDivisor], a ; (aliases: hDivisor, hMultiplier, hPowerOf10) + ldh a, [hDivideBuffer] rr a - ld [hDivideBuffer], a + ldh [hDivideBuffer], a jr .asm_37db3 .asm_37e18 - ld a, [hDividend+1] ; (aliases: hMultiplicand) - ld [hRemainder], a ; (aliases: hDivisor, hMultiplier, hPowerOf10) - ld a, [hDivideBuffer+4] - ld [hQuotient+3], a - ld a, [hDivideBuffer+3] - ld [hQuotient+2], a - ld a, [hDivideBuffer+2] - ld [hQuotient+1], a ; (aliases: hMultiplicand) - ld a, [hDivideBuffer+1] - ld [hDividend], a ; (aliases: hProduct, hPastLeadingZeros, hQuotient) + ldh a, [hDividend+1] ; (aliases: hMultiplicand) + ldh [hRemainder], a ; (aliases: hDivisor, hMultiplier, hPowerOf10) + ldh a, [hDivideBuffer+4] + ldh [hQuotient+3], a + ldh a, [hDivideBuffer+3] + ldh [hQuotient+2], a + ldh a, [hDivideBuffer+2] + ldh [hQuotient+1], a ; (aliases: hMultiplicand) + ldh a, [hDivideBuffer+1] + ldh [hDividend], a ; (aliases: hProduct, hPastLeadingZeros, hQuotient) ret diff --git a/engine/math/random.asm b/engine/math/random.asm index 2fc83f6f..c8760157 100755 --- a/engine/math/random.asm +++ b/engine/math/random.asm @@ -1,13 +1,13 @@ Random_:: ; Generate a random 16-bit value. - ld a, [rDIV] + ldh a, [rDIV] ld b, a - ld a, [hRandomAdd] + ldh a, [hRandomAdd] adc b - ld [hRandomAdd], a - ld a, [rDIV] + ldh [hRandomAdd], a + ldh a, [rDIV] ld b, a - ld a, [hRandomSub] + ldh a, [hRandomSub] sbc b - ld [hRandomSub], a + ldh [hRandomSub], a ret |