RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 15:27:46 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

some support for vdp debug reg

Browse source
This commit is contained in:
notaz 2017-09-28 03:16:21 +03:00
parent 1a08dec0e0
commit e0bcb7a90d
11 changed files with 160 additions and 69 deletions
Download patch file Download diff file Expand all files Collapse all files

19
pico/draw_arm.S
View file

@ -278,7 +278,7 @@
@ int cells; // 0x14
@ };
@ void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells,
@ void DrawLayer(int lflags, int *hcache, int cellskip, int maxcells,
@ struct PicoEState *est)
.global DrawLayer
@ -293,8 +293,8 @@ DrawLayer:
ldrb r7, [r11, #16] @ ??vv??hh
mov r6, r1 @ hcache
orr r9, r3, r0, lsl #30
orr r9, r9, r2, lsl #8 @ r9=sh[31]|cellskip[15:8]|maxcells[7:0] (tmp)
orr r9, r3, r0, lsl #29 @ r9=force[31]|sh[30]|plane[29]
orr r9, r9, r2, lsl #8 @ |cellskip[15:8]|maxcells[7:0] (tmp)
mov r1, r7, lsl #4
orr r1, r1, #0x00ff
@ -375,10 +375,11 @@ DrawLayer:
and r1, r1, #7
add r7, r1, #1 @ r7=dx=((ts->hscroll-1)&7)+1
tst r9, #1<<31
movs r3, r9, lsl #1 @ (force[31]|sh[30]) << 1
mov r3, #0
orrne r10,r10, #1<<23 @ r10=(cells<<24|sh<<23|hi_not_empty<<22|had_output<<21|ty)
movne r3, #0x40 @ default to shadowed pal on sh mode
orrmi r10,r10, #1<<23 @ r10=cells[31:24]|sh[23]|hi_not_empty[22]
orrcs r10,r10, #1<<20 @ |had_output[21]|force[20]|ty[15:0]
movmi r3, #0x40 @ default to shadowed pal on sh mode
cmp r7, #8
addne r10,r10, #0x01000000 @ we will loop cells+1 times if there is scroll
@ -413,6 +414,7 @@ DrawLayer:
add r8, r8, #1
tst r7, #0x8000
tsteq r10, #1<<20 @ force?
bne .DrawStrip_hiprio
cmp r7, r9
@ -480,7 +482,7 @@ DrawLayer:
orr r10, r10, #1<<22
.DrawStrip_hiprio:
tst r10, #0x00c00000
tst r10, #0x00d00000 @ sh[23]|hi_not_empty[22]|force[20]
beq .DrawStrip_hiprio_maybempt
sub r0, r1, r11
orr r7, r7, r0, lsl #16
@ -774,7 +776,8 @@ DrawTilesFromCache:
bic r4, r1, #0xfe00
add r1, r11, r4 @ r1=pdest
mov r7, r6, lsl #16
movs r7, r6, lsl #16
bpl .dtfc_loop @ !(code & 0x8000)
cmp r5, r7, lsr #16
beq .dtfc_samecode @ if (code==prevcode)