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https://github.com/thornAvery/kep-hack.git
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remove address comments
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parent
cee4d559f9
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764 changed files with 8371 additions and 8371 deletions
42
home/pic.asm
42
home/pic.asm
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@ -1,6 +1,6 @@
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; bankswitches and runs _UncompressSpriteData
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; bank is given in a, sprite input stream is pointed to in wSpriteInputPtr
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UncompressSpriteData:: ; 24fd (0:24fd)
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UncompressSpriteData::
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ld b, a
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ld a, [H_LOADEDROMBANK]
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push af
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@ -18,7 +18,7 @@ UncompressSpriteData:: ; 24fd (0:24fd)
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ret
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; initializes necessary data to load a sprite and runs UncompressSpriteDataLoop
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_UncompressSpriteData:: ; 251a (0:251a)
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_UncompressSpriteData::
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ld hl, sSpriteBuffer1
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ld c, (2*SPRITEBUFFERSIZE) % $100
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ld b, (2*SPRITEBUFFERSIZE) / $100
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@ -55,7 +55,7 @@ _UncompressSpriteData:: ; 251a (0:251a)
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; uncompresses a chunk from the sprite input data stream (pointed to at wd0da) into sSpriteBuffer1 or sSpriteBuffer2
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; each chunk is a 1bpp sprite. A 2bpp sprite consist of two chunks which are merged afterwards
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; note that this is an endless loop which is terminated during a call to MoveToNextBufferPosition by manipulating the stack
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UncompressSpriteDataLoop:: ; 2556 (0:2556)
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UncompressSpriteDataLoop::
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ld hl, sSpriteBuffer1
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ld a, [wSpriteLoadFlags]
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bit 0, a
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@ -145,7 +145,7 @@ UncompressSpriteDataLoop:: ; 2556 (0:2556)
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; moves output pointer to next position
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; also cancels the calling function if the all output is done (by removing the return pointer from stack)
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; and calls postprocessing functions according to the unpack mode
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MoveToNextBufferPosition:: ; 25d8 (0:25d8)
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MoveToNextBufferPosition::
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ld a, [wSpriteHeight]
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ld b, a
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ld a, [wSpriteCurPosY]
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@ -206,7 +206,7 @@ MoveToNextBufferPosition:: ; 25d8 (0:25d8)
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jp UnpackSprite
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; writes 2 bits (from a) to the output buffer (pointed to from wSpriteOutputPtr)
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WriteSpriteBitsToBuffer:: ; 2649 (0:2649)
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WriteSpriteBitsToBuffer::
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ld e, a
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ld a, [wSpriteOutputBitOffset]
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and a
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@ -234,7 +234,7 @@ WriteSpriteBitsToBuffer:: ; 2649 (0:2649)
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ret
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; reads next bit from input stream and returns it in a
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ReadNextInputBit:: ; 2670 (0:2670)
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ReadNextInputBit::
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ld a, [wSpriteInputBitCounter]
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dec a
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jr nz, .curByteHasMoreBitsToRead
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@ -250,7 +250,7 @@ ReadNextInputBit:: ; 2670 (0:2670)
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ret
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; reads next byte from input stream and returns it in a
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ReadNextInputByte:: ; 268b (0:268b)
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ReadNextInputByte::
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ld a, [wSpriteInputPtr]
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ld l, a
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ld a, [wSpriteInputPtr+1]
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@ -265,7 +265,7 @@ ReadNextInputByte:: ; 268b (0:268b)
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ret
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; the nth item is 2^n - 1
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LengthEncodingOffsetList:: ; 269f (0:269f)
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LengthEncodingOffsetList::
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dw %0000000000000001
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dw %0000000000000011
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dw %0000000000000111
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@ -284,7 +284,7 @@ LengthEncodingOffsetList:: ; 269f (0:269f)
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dw %1111111111111111
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; unpacks the sprite data depending on the unpack mode
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UnpackSprite:: ; 26bf (0:26bf)
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UnpackSprite::
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ld a, [wSpriteUnpackMode]
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cp $2
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jp z, UnpackSpriteMode2
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@ -297,7 +297,7 @@ UnpackSprite:: ; 26bf (0:26bf)
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; decodes differential encoded sprite data
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; input bit value 0 preserves the current bit value and input bit value 1 toggles it (starting from initial value 0).
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SpriteDifferentialDecode:: ; 26d4 (0:26d4)
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SpriteDifferentialDecode::
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xor a
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ld [wSpriteCurPosX], a
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ld [wSpriteCurPosY], a
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@ -382,7 +382,7 @@ SpriteDifferentialDecode:: ; 26d4 (0:26d4)
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ret
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; decodes the nybble stored in a. Last decoded data is assumed to be in e (needed to determine if initial value is 0 or 1)
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DifferentialDecodeNybble:: ; 276d (0:276d)
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DifferentialDecodeNybble::
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srl a ; c=a%2, a/=2
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ld c, $0
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jr nc, .evenNumber
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@ -424,7 +424,7 @@ DifferentialDecodeNybble:: ; 276d (0:276d)
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ld e, a ; update last decoded data
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ret
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DecodeNybble0Table:: ; 27a7 (0:27a7)
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DecodeNybble0Table::
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dn $0, $1
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dn $3, $2
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dn $7, $6
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@ -433,7 +433,7 @@ DecodeNybble0Table:: ; 27a7 (0:27a7)
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dn $c, $d
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dn $8, $9
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dn $b, $a
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DecodeNybble1Table:: ; 27af (0:27af)
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DecodeNybble1Table::
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dn $f, $e
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dn $c, $d
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dn $8, $9
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@ -442,7 +442,7 @@ DecodeNybble1Table:: ; 27af (0:27af)
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dn $3, $2
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dn $7, $6
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dn $4, $5
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DecodeNybble0TableFlipped:: ; 27b7 (0:27b7)
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DecodeNybble0TableFlipped::
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dn $0, $8
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dn $c, $4
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dn $e, $6
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@ -451,7 +451,7 @@ DecodeNybble0TableFlipped:: ; 27b7 (0:27b7)
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dn $3, $b
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dn $1, $9
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dn $d, $5
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DecodeNybble1TableFlipped:: ; 27bf (0:27bf)
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DecodeNybble1TableFlipped::
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dn $f, $7
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dn $3, $b
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dn $1, $9
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@ -462,7 +462,7 @@ DecodeNybble1TableFlipped:: ; 27bf (0:27bf)
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dn $2, $a
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; combines the two loaded chunks with xor (the chunk loaded second is the destination). The source chunk is differeintial decoded beforehand.
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XorSpriteChunks:: ; 27c7 (0:27c7)
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XorSpriteChunks::
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xor a
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ld [wSpriteCurPosX], a
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ld [wSpriteCurPosY], a
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@ -527,7 +527,7 @@ XorSpriteChunks:: ; 27c7 (0:27c7)
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ret
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; reverses the bits in the nybble given in register a
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ReverseNybble:: ; 2837 (0:2837)
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ReverseNybble::
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ld de, NybbleReverseTable
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add e
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ld e, a
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@ -538,7 +538,7 @@ ReverseNybble:: ; 2837 (0:2837)
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ret
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; resets sprite buffer pointers to buffer 1 and 2, depending on wSpriteLoadFlags
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ResetSpriteBufferPointers:: ; 2841 (0:2841)
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ResetSpriteBufferPointers::
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ld a, [wSpriteLoadFlags]
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bit 0, a
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jr nz, .buffer2Selected
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@ -560,11 +560,11 @@ ResetSpriteBufferPointers:: ; 2841 (0:2841)
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ret
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; maps each nybble to its reverse
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NybbleReverseTable:: ; 2867 (0:2867)
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NybbleReverseTable::
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db $0, $8, $4, $c, $2, $a, $6 ,$e, $1, $9, $5, $d, $3, $b, $7 ,$f
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; combines the two loaded chunks with xor (the chunk loaded second is the destination). Both chunks are differeintial decoded beforehand.
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UnpackSpriteMode2:: ; 2877 (0:2877)
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UnpackSpriteMode2::
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call ResetSpriteBufferPointers
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ld a, [wSpriteFlipped]
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push af
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@ -581,7 +581,7 @@ UnpackSpriteMode2:: ; 2877 (0:2877)
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jp XorSpriteChunks
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; stores hl into the output pointers
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StoreSpriteOutputPointer:: ; 2897 (0:2897)
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StoreSpriteOutputPointer::
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ld a, l
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ld [wSpriteOutputPtr], a
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ld [wSpriteOutputPtrCached], a
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