mirror of
https://github.com/thornAvery/kep-hack.git
synced 2025-10-17 20:46:24 +13:00
disasm of misc functions
hg-commit-id: 774697dc5134
This commit is contained in:
YamaArashi
parent
823441c591
commit
8573d9f7bd
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@ -814,7 +814,7 @@ H_VBCOPYBGDEST EQU $FFC3 ; 2 bytes
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; number of rows for VBlankCopyBgMap to copy
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H_VBCOPYBGNUMROWS EQU $FFC5
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; size of VBlankCopy transfer in 8-byte units
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; size of VBlankCopy transfer in 16-byte units
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H_VBCOPYSIZE EQU $FFC6
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; source address for VBlankCopy function
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@ -823,7 +823,7 @@ H_VBCOPYSRC EQU $FFC7
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; destination address for VBlankCopy function
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H_VBCOPYDEST EQU $FFC9
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; size of source data for VBlankCopyDouble in 4-byte units
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; size of source data for VBlankCopyDouble in 8-byte units
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H_VBCOPYDOUBLESIZE EQU $FFCB
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; source address for VBlankCopyDouble function
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283
main.asm
283
main.asm
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@ -1307,7 +1307,7 @@ LoadTilesetTilePatternData: ; 9E8
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ld de,$9000
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ld bc,$0600
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ld a,[$d52b]
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jp $17f7
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jp FarCopyData2
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; this loads the current maps complete tile map (which references blocks, not individual tiles) to C6E8
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; it can also load partial tile maps of connected maps into a border of length 3 around the current map
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@ -2454,7 +2454,7 @@ LoadPlayerSpriteGraphicsCommon: ; 0x1063
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push de
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push hl
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ld bc,$050c
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call $1848
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call CopyVideoData
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pop hl
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pop de
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ld a,$c0
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@ -2465,7 +2465,7 @@ LoadPlayerSpriteGraphicsCommon: ; 0x1063
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.noCarry\@
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set 3,h
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ld bc,$050c
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jp $1848
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jp CopyVideoData
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; function to load data from the map header
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LoadMapHeader: ; 107C
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@ -2938,7 +2938,177 @@ Tset17_Coll: ; 0x17f0
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INCBIN "gfx/tilesets/17.tilecoll"
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;Tile Collision ends 0x17f7
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INCBIN "baserom.gbc",$17F7,$190F-$17F7
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; does the same thing as FarCopyData at 009D
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; only difference is that it uses [$ff8b] instead of [$cee9] for a temp value
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; copy bc bytes of data from a:hl to de
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FarCopyData2: ; 17F7
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ld [$ff8b],a
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ld a,[$ffb8]
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push af
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ld a,[$ff8b]
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ld [$ffb8],a
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ld [$2000],a
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call CopyData
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pop af
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ld [$ffb8],a
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ld [$2000],a
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ret
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; does a far copy but the source is de and the destination is hl
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; copy bc bytes of data from a:de to hl
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FarCopyData3: ; 180D
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ld [$ff8b],a
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ld a,[$ffb8]
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push af
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ld a,[$ff8b]
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ld [$ffb8],a
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ld [$2000],a
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push hl
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push de
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push de
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ld d,h
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ld e,l
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pop hl
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call CopyData
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pop de
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pop hl
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pop af
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ld [$ffb8],a
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ld [$2000],a
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ret
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; copies each source byte to the destination twice (next to each other)
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; copy bc source bytes from a:hl to de
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FarCopyDataDouble: ; 182B
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ld [$ff8b],a
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ld a,[$ffb8]
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push af
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ld a,[$ff8b]
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ld [$ffb8],a
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ld [$2000],a
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.loop\@
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ld a,[hli]
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ld [de],a
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inc de
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ld [de],a
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inc de
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dec bc
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ld a,c
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or b
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jr nz,.loop\@
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pop af
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ld [$ffb8],a
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ld [$2000],a
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ret
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; copy (c * 16) bytes from b:de to hl during V-blank
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; transfers up to 128 bytes per V-blank
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CopyVideoData: ; 1848
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ld a,[H_AUTOBGTRANSFERENABLED] ; save auto-transfer enabled flag
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push af
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xor a
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ld [H_AUTOBGTRANSFERENABLED],a ; disable auto-transfer while copying
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ld a,[$ffb8]
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ld [$ff8b],a
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ld a,b
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ld [$ffb8],a
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ld [$2000],a
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ld a,e
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ld [H_VBCOPYSRC],a
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ld a,d
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ld [H_VBCOPYSRC + 1],a
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ld a,l
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ld [H_VBCOPYDEST],a
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ld a,h
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ld [H_VBCOPYDEST + 1],a
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.loop\@
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ld a,c
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cp a,8 ; are there more than 128 bytes left to copy?
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jr nc,.copyMaxSize\@ ; only copy up to 128 bytes at a time
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.copyRemainder\@
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ld [H_VBCOPYSIZE],a
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call DelayFrame ; wait for V-blank handler to perform the copy
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ld a,[$ff8b]
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ld [$ffb8],a
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ld [$2000],a
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pop af
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ld [H_AUTOBGTRANSFERENABLED],a ; restore original auto-transfer enabled flag
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ret
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.copyMaxSize\@
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ld a,8 ; 128 bytes
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ld [H_VBCOPYSIZE],a
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call DelayFrame ; wait for V-blank handler to perform the copy
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ld a,c
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sub a,8
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ld c,a
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jr .loop\@
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; copy (c * 8) source bytes from b:de to hl during V-blank
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; copies each source byte to the destination twice (next to each other)
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; transfers up to 64 source bytes per V-blank
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CopyVideoDataDouble: ; 1886
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ld a,[H_AUTOBGTRANSFERENABLED] ; save auto-transfer enabled flag
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push af
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xor a
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ld [H_AUTOBGTRANSFERENABLED],a ; disable auto-transfer while copying
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ld a,[$ffb8]
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ld [$ff8b],a
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ld a,b
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ld [$ffb8],a
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ld [$2000],a
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ld a,e
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ld [H_VBCOPYDOUBLESRC],a
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ld a,d
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ld [H_VBCOPYDOUBLESRC + 1],a
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ld a,l
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ld [H_VBCOPYDOUBLEDEST],a
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ld a,h
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ld [H_VBCOPYDOUBLEDEST + 1],a
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.loop\@
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ld a,c
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cp a,8 ; are there more than 64 source bytes left to copy?
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jr nc,.copyMaxSize\@ ; only copy up to 64 source bytes at a time
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.copyRemainder\@
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ld [H_VBCOPYDOUBLESIZE],a
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call DelayFrame ; wait for V-blank handler to perform the copy
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ld a,[$ff8b]
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ld [$ffb8],a
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ld [$2000],a
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pop af
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ld [H_AUTOBGTRANSFERENABLED],a ; restore original auto-transfer enabled flag
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ret
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.copyMaxSize\@
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ld a,8 ; 64 source bytes
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ld [H_VBCOPYDOUBLESIZE],a
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call DelayFrame ; wait for V-blank handler to perform the copy
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ld a,c
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sub a,8
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ld c,a
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jr .loop\@
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; clears an area of the screen
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; INPUT:
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; hl = address of upper left corner of the area
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; b = height
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; c = width
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ClearScreenArea: ; 18C4
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ld a,$7F ; blank tile
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ld de,20 ; screen width
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.loop\@
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push hl
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push bc
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.innerLoop\@
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ld [hli],a
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dec c
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jr nz,.innerLoop\@
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pop bc
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pop hl
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add hl,de
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dec b
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jr nz,.loop\@
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ret
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INCBIN "baserom.gbc",$18D6,$190F - $18D6
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ClearScreen: ; 190F
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; clears all tiles in the tilemap,
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@ -3251,7 +3421,7 @@ Char51: ; 0x1ab4
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call $3898
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ld hl,$C4A5
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ld bc,$0412
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call $18C4
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call ClearScreenArea
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ld c,$14
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call DelayFrames
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pop de
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@ -3266,7 +3436,7 @@ Char49: ; 0x1ad5
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call $3898
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ld hl,$C469
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ld bc,$0712
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call $18C4
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call ClearScreenArea
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ld c,$14
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call DelayFrames
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pop de
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@ -3934,7 +4104,7 @@ VBlankCopyBgMap: ; 1DE1
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ld [H_VBCOPYBGSRC],a ; disable transfer so it doesn't continue next V-blank
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jr TransferBgRows
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; This function copies ([H_VBCOPYDOUBLESIZE] * 4) source bytes
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; This function copies ([H_VBCOPYDOUBLESIZE] * 8) source bytes
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; from H_VBCOPYDOUBLESRC to H_VBCOPYDOUBLEDEST.
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; It copies each source byte to the destination twice (next to each other).
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; The function updates the source and destination addresses, so the transfer
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@ -4016,7 +4186,7 @@ VBlankCopyDouble: ; 1E02
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ld sp,hl ; restore stack pointer
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ret
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; Copies ([H_VBCOPYSIZE] * 8) bytes from H_VBCOPYSRC to H_VBCOPYDEST.
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; Copies ([H_VBCOPYSIZE] * 16) bytes from H_VBCOPYSRC to H_VBCOPYDEST.
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; The function updates the source and destination addresses, so the transfer
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; can be continued easily by repeatingly calling this function.
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VBlankCopy: ; 1E5E
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@ -5271,7 +5441,25 @@ GetMoveName: ; 3058
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pop hl
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ret
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INCBIN "baserom.gbc",$3071,$31cc - $3071
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INCBIN "baserom.gbc",$3071,$30E8 - $3071
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; function to draw various text boxes
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; INPUT:
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; [$D125] = text box ID
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DisplayTextBoxID: ; 30E8
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ld a,[$ffb8]
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push af
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ld a,BANK(DisplayTextBoxID_)
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ld [$ffb8],a
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ld [$2000],a
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call DisplayTextBoxID_
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pop bc
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ld a,b
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ld [$ffb8],a
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ld [$2000],a
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ret
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INCBIN "baserom.gbc",$30FD,$31cc - $30FD
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LoadTrainerHeader: ; 0x31cc
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call $3157
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@ -5464,7 +5652,60 @@ MoveSprite: ; 363A
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ld [$CD3A],a
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ret
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INCBIN "baserom.gbc",$366B,$3739 - $366B
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INCBIN "baserom.gbc",$366B,$3680 - $366B
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; copies the tile patterns for letters and numbers into VRAM
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LoadFontTilePatterns: ; 3680
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ld a,[rLCDC]
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bit 7,a ; is the LCD enabled?
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jr nz,.lcdEnabled\@
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.lcdDisabled\@
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ld hl,$5a80
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ld de,$8800
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ld bc,$0400
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ld a,$04
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jp FarCopyDataDouble ; if LCD is off, transfer all at once
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.lcdEnabled\@
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ld de,$5a80
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ld hl,$8800
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ld bc,$0480
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jp CopyVideoDataDouble ; if LCD is on, transfer during V-blank
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; copies the text box tile patterns into VRAM
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LoadTextBoxTilePatterns: ; 36A0
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ld a,[rLCDC]
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bit 7,a ; is the LCD enabled?
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jr nz,.lcdEnabled\@
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.lcdDisabled\@
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ld hl,$6288
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ld de,$9600
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ld bc,$0200
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ld a,$04
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jp FarCopyData2 ; if LCD is off, transfer all at once
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.lcdEnabled\@
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ld de,$6288
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ld hl,$9600
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ld bc,$0420
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jp CopyVideoData ; if LCD is on, transfer during V-blank
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; copies HP bar and status display tile patterns into VRAM
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LoadHpBarAndStatusTilePatterns: ; 36C0
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ld a,[rLCDC]
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bit 7,a ; is the LCD enabled?
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jr nz,.lcdEnabled\@
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.lcdDisabled\@
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ld hl,$5ea0
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ld de,$9620
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ld bc,$01e0
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ld a,$04
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jp FarCopyData2 ; if LCD is off, transfer all at once
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.lcdEnabled\@
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ld de,$5ea0
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ld hl,$9620
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ld bc,$041e
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jp CopyVideoData ; if LCD is on, transfer during V-blank
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INCBIN "baserom.gbc",$36E0,$3739 - $36E0
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DelayFrames: ; 3739
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; wait n frames, where n is the value in c
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@ -6101,7 +6342,7 @@ PrintText: ; 3C49
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push hl
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ld a,1
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ld [$D125],a
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call $30E8
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call DisplayTextBoxID
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call $2429
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call Delay3
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pop hl
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@ -6666,8 +6907,8 @@ MainMenu: ; 0x5af2
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res 6,[hl]
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call ClearScreen
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call $3DED
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call $36A0 ; load some graphics in VRAM
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call $3680 ; load fonts in VRAM
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call LoadTextBoxTilePatterns
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call LoadFontTilePatterns
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ld hl,$D730
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set 6,[hl]
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ld a,[$D088]
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@ -6800,7 +7041,7 @@ OakSpeech: ; 6115
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ld a,$EF ; song #
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call $23A1 ; plays music
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call ClearScreen
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call $36A0
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call LoadTextBoxTilePatterns
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call $60CA
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ld a,$18
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call Predef
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@ -6877,7 +7118,7 @@ Function61BC: ; 0x61bc
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ld de,$4180
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ld hl,$8000
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ld bc,$050C
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call $1848
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call CopyVideoData
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ld de,$6FE8
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ld bc,$0400
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call IntroPredef3B
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@ -6905,8 +7146,8 @@ Function61BC: ; 0x61bc
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ld hl,$C40A
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ld b,7
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ld c,7
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call $18C4
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call $36A0
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call ClearScreenArea
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call LoadTextBoxTilePatterns
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ld a,1
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ld [$CFCB],a
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ld c,$32
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@ -7425,7 +7666,7 @@ DisplayTextIDInit: ; 7096
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call $18d6 ; transfer background in WRAM to VRAM
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xor a
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ld [$ffb0],a ; put the window on the screen
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call $3680 ; transfer tile pattern data for text into VRAM
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call LoadFontTilePatterns
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ld a,$01
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ld [H_AUTOBGTRANSFERENABLED],a ; enable continuous WRAM to VRAM transfer each V-blank
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ret
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@ -32611,7 +32852,7 @@ EnemySendOut: ; 490E
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ld bc,$0801
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ld a,$14
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ld [$D125],a
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call $30E8
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call DisplayTextBoxID
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ld a,[$CC26]
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and a
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jr nz,.next4\@
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@ -32644,7 +32885,7 @@ EnemySendOut: ; 490E
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call $0082
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ld hl,$C3A0
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ld bc,$040B
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call $18C4
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call ClearScreenArea
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ld b,1
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call $3DEF
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call $3DDC
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@ -64638,7 +64879,7 @@ LoadAnimationTileset: ; 41D2
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ld b,$1E ; ROM bank
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ld a,[$D07D]
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ld c,a ; number of tiles
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jp $1848 ; load tileset
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jp CopyVideoData ; load tileset
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AnimationTilesetPointers: ; 41F2
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db 79 ; number of tiles
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