diff options
| author | Rangi <remy.oukaour+rangi42@gmail.com> | 2020-07-06 19:03:05 -0400 |
|---|---|---|
| committer | Rangi <remy.oukaour+rangi42@gmail.com> | 2020-07-06 19:03:05 -0400 |
| commit | 772fcc7588a4e1fbe146a02b429cf64282c81dcb (patch) | |
| tree | f491fa1d38e37ab10534b3f18422e0149ad0deca /engine/gfx/sprite_oam.asm | |
| parent | c480632d5494d04f7f5f0298a31877a2293b564e (diff) | |
Specify the ldh instruction, don't turn ld into ldh
Diffstat (limited to 'engine/gfx/sprite_oam.asm')
| -rw-r--r-- | engine/gfx/sprite_oam.asm | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/engine/gfx/sprite_oam.asm b/engine/gfx/sprite_oam.asm index 68128413..1a96286d 100644 --- a/engine/gfx/sprite_oam.asm +++ b/engine/gfx/sprite_oam.asm @@ -13,13 +13,13 @@ PrepareOAMData:: .updateEnabled xor a - ld [hOAMBufferOffset], a + ldh [hOAMBufferOffset], a .spriteLoop - ld [hSpriteOffset2], a + ldh [hSpriteOffset2], a ld d, wSpriteStateData1 / $100 - ld a, [hSpriteOffset2] + ldh a, [hSpriteOffset2] ld e, a ld a, [de] ; c1x0 and a @@ -58,7 +58,7 @@ PrepareOAMData:: ld e, a ld a, [de] ; c2x7 and $80 - ld [hSpritePriority], a ; temp store sprite priority + ldh [hSpritePriority], a ; temp store sprite priority pop de ; read the entry from the table @@ -77,17 +77,17 @@ PrepareOAMData:: call GetSpriteScreenXY - ld a, [hOAMBufferOffset] + ldh a, [hOAMBufferOffset] ld e, a ld d, wOAMBuffer / $100 .tileLoop - ld a, [hSpriteScreenY] ; temp for sprite Y position + ldh a, [hSpriteScreenY] ; temp for sprite Y position add $10 ; Y=16 is top of screen (Y=0 is invisible) add [hl] ; add Y offset from table ld [de], a ; write new sprite OAM Y position inc hl - ld a, [hSpriteScreenX] ; temp for sprite X position + ldh a, [hSpriteScreenX] ; temp for sprite X position add $8 ; X=8 is left of screen (X=0 is invisible) add [hl] ; add X offset from table inc e @@ -126,7 +126,7 @@ PrepareOAMData:: ld a, [hl] bit 1, a ; is the tile allowed to set the sprite priority bit? jr z, .skipPriority - ld a, [hSpritePriority] + ldh a, [hSpritePriority] or [hl] .skipPriority inc hl @@ -136,16 +136,16 @@ PrepareOAMData:: jr z, .tileLoop ld a, e - ld [hOAMBufferOffset], a + ldh [hOAMBufferOffset], a .nextSprite - ld a, [hSpriteOffset2] + ldh a, [hSpriteOffset2] add $10 cp $100 % $100 jp nz, .spriteLoop ; Clear unused OAM. - ld a, [hOAMBufferOffset] + ldh a, [hOAMBufferOffset] ld l, a ld h, wOAMBuffer / $100 ld de, $4 @@ -170,20 +170,20 @@ GetSpriteScreenXY: inc e inc e ld a, [de] ; c1x4 - ld [hSpriteScreenY], a + ldh [hSpriteScreenY], a inc e inc e ld a, [de] ; c1x6 - ld [hSpriteScreenX], a + ldh [hSpriteScreenX], a ld a, 4 add e ld e, a - ld a, [hSpriteScreenY] + ldh a, [hSpriteScreenY] add 4 and $f0 ld [de], a ; c1xa (y) inc e - ld a, [hSpriteScreenX] + ldh a, [hSpriteScreenX] and $f0 ld [de], a ; c1xb (x) ret |