RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 07:17:45 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

updated s/h arm asm code. Untested.

Browse source 
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@635 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-02-06 15:06:18 +00:00
parent 299acadc74
commit bfa124288c
2 changed files with 53 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

16
pico/draw.c
View file

@ -17,6 +17,13 @@
* "sonic mode" is autodetected, shadow/hilight is enabled by emulated game.
* AS is enabled by user and takes priority over "sonic mode".
*
* since renderer always draws line in 8bit mode, there are 2 spare bits:
* b \ mode: s/h as sonic
* 00 normal - -
* 01 shadow - pal index
* 10 hilight+op spr spr pal index
* 11 shadow +op spr - pal index
*
* not handled properly:
* - hilight op on shadow tile
* - AS + s/h (s/h sprite flag interferes with and cleared by AS code)
@ -505,8 +512,8 @@ static void DrawWindow(int tstart, int tend, int prio, int sh) // int *hcache
if (prio) {
int *zb = (int *)(HighCol+8+(tilex<<3));
*zb++ &= 0x3f3f3f3f;
*zb &= 0x3f3f3f3f;
*zb++ &= 0xbfbfbfbf;
*zb &= 0xbfbfbfbf;
} else {
pal |= 0x40;
}
@ -925,10 +932,11 @@ static void DrawSpritesHiAS(unsigned char *sprited, int sh)
/* nasty 1: remove 'sprite' flags */
{
int c = 320/4, *zb = (int *)(HighCol+8);
int c = 320/4/4, *zb = (int *)(HighCol+8);
while (c--)
{
*zb++ &= 0x7f7f7f7f;
*zb++ &= 0x7f7f7f7f; *zb++ &= 0x7f7f7f7f;
*zb++ &= 0x7f7f7f7f; *zb++ &= 0x7f7f7f7f;
}
}

82
pico/draw_arm.s
View file

@ -72,7 +72,7 @@
.endif
ldreqb r4, [r1,#\offs]
orrne r4, r3, r4
andeq r4, r4, #0x3f
andeq r4, r4, #0xbf
strb r4, [r1,#\offs]
.endm
@ -163,14 +163,12 @@
.endif
beq 0f
cmp r4, #0xe
ldrgeb r4, [r1,#\ofs]
orrlt r4, r3, r4 @ normal
ldrgeb r7, [r1,#\ofs]
orrlt r7, r3, r4 @ normal
biceq r4, r4, #0xc0 @ hilight
orreq r4, r4, #0x80
orrgt r4, r4, #0xc0 @ shadow
strb r4, [r1,#\ofs]
bicge r7, r7, #0xc0
orrge r7, r7, r4, lsl #6
strb r7, [r1,#\ofs]
0:
.endm
@ -198,38 +196,41 @@
TileDoShGenPixel 16, 7 @ #0x000f0000
.endm
.macro TileDoShGenPixel_noop shift ofs
.macro TileDoShGenPixel_markop shift ofs
.if \shift
and r4, r12, r2, lsr #\shift
ands r4, r12, r2, lsr #\shift
.else
and r4, r12, r2
ands r4, r12, r2
.endif
sub r7, r4, #1
cmp r7, #0xd
orrcc r4, r3, r4 @ 0-0xc (was 1-0xd)
strccb r4, [r1,#\ofs]
beq 0f
cmp r4, #0xe
ldrgeb r4, [r1,#\ofs]
orrlt r4, r3, r4
orrge r4, r3, 0x80
strb r4, [r1,#\ofs]
0:
.endm
.macro TileFlipSh_noop
TileDoShGenPixel_noop 16, 0 @ #0x000f0000
TileDoShGenPixel_noop 20, 1 @ #0x00f00000
TileDoShGenPixel_noop 24, 2 @ #0x0f000000
TileDoShGenPixel_noop 28, 3 @ #0xf0000000
TileDoShGenPixel_noop 0, 4 @ #0x0000000f
TileDoShGenPixel_noop 4, 5 @ #0x000000f0
TileDoShGenPixel_noop 8, 6 @ #0x00000f00
TileDoShGenPixel_noop 12, 7 @ #0x0000f000
TileDoShGenPixel_markop 16, 0 @ #0x000f0000
TileDoShGenPixel_markop 20, 1 @ #0x00f00000
TileDoShGenPixel_markop 24, 2 @ #0x0f000000
TileDoShGenPixel_markop 28, 3 @ #0xf0000000
TileDoShGenPixel_markop 0, 4 @ #0x0000000f
TileDoShGenPixel_markop 4, 5 @ #0x000000f0
TileDoShGenPixel_markop 8, 6 @ #0x00000f00
TileDoShGenPixel_markop 12, 7 @ #0x0000f000
.endm
.macro TileNormSh_noop
TileDoShGenPixel_noop 12, 0 @ #0x0000f000
TileDoShGenPixel_noop 8, 1 @ #0x00000f00
TileDoShGenPixel_noop 4, 2 @ #0x000000f0
TileDoShGenPixel_noop 0, 3 @ #0x0000000f
TileDoShGenPixel_noop 28, 4 @ #0xf0000000
TileDoShGenPixel_noop 24, 5 @ #0x0f000000
TileDoShGenPixel_noop 20, 6 @ #0x00f00000
TileDoShGenPixel_noop 16, 7 @ #0x000f0000
TileDoShGenPixel_markop 12, 0 @ #0x0000f000
TileDoShGenPixel_markop 8, 1 @ #0x00000f00
TileDoShGenPixel_markop 4, 2 @ #0x000000f0
TileDoShGenPixel_markop 0, 3 @ #0x0000000f
TileDoShGenPixel_markop 28, 4 @ #0xf0000000
TileDoShGenPixel_markop 24, 5 @ #0x0f000000
TileDoShGenPixel_markop 20, 6 @ #0x00f00000
TileDoShGenPixel_markop 16, 7 @ #0x000f0000
.endm
.macro TileDoShGenPixel_onlyop_lp shift ofs
@ -239,14 +240,13 @@
ands r7, r12, r2
.endif
ldrneb r4, [r1,#\ofs]
tstne r4, #0x40
beq 0f
cmp r7, #0xe
biceq r4, r4, #0xc0 @ hilight
orreq r4, r4, #0x80
orrgt r4, r4, #0xc0 @ shadow
strgeb r4, [r1,#\ofs]
blt 0f
tst r4, #0xc0
bicne r4, r4, #0xc0
orrne r4, r4, r7, lsl #6
strneb r4, [r1,#\ofs]
0:
.endm
@ -873,8 +873,8 @@ DrawTilesFromCache:
.dtfc_shadow_blank:
tst r1, #1
ldrneb r4, [r1]
mov r6, #0x3f
and r4, r4, #0x3f
mov r6, #0xbf
and r4, r4, #0xbf
strneb r4, [r1], #1
ldrh r4, [r1]
orr r6, r6, r6, lsl #8
@ -925,7 +925,7 @@ DrawTilesFromCache:
add r1, r11,#8
mov r3, #320/4/4
mov r6, #0x3f
mov r6, #0xbf
orr r6, r6, r6, lsl #8
orr r6, r6, r6, lsl #16
.dtfc_loop_shprep: