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giz port, restructuring

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@257 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-09-22 22:53:18 +00:00
parent c9077ab4b9
commit ea8c405fa7
30 changed files with 1706 additions and 970 deletions
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37
Pico/Draw2.s
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@ -23,11 +23,11 @@ BackFillFull:
stmfd sp!, {r4-r9,lr}
ldr lr, =PicoDraw2FB @ lr=PicoDraw2FB
mov r0, r0, lsl #26
ldr lr, [lr]
mov r0, r0, lsr #26
add lr, lr, #328*8
mov r0, r0, lsl #26
mov r0, r0, lsr #26
orr r0, r0, r0, lsl #8
orr r0, r0, r0, lsl #16
@ -344,25 +344,25 @@ DrawLayerFull:
mov r6, r1 @ hcache
ldr r11, =(Pico+0x22228) @ Pico.video
ldr r10, =(Pico+0x10000) @ r10=Pico.vram
ldrb r5, [r11, #13] @ pvid->reg[13]
ldrb r7, [r11, #11]
sub lr, r3, r2
and lr, lr, #0x00ff0000 @ lr=cells
ldr r10, =(Pico+0x10000) @ r10=Pico.vram
ldr r11, =(Pico+0x22228) @ Pico.video
ldrb r5, [r11, #13] @ pvid->reg[13]
mov r5, r5, lsl #10 @ htab=pvid->reg[13]<<9; (halfwords)
add r5, r5, r0, lsl #1 @ htab+=plane
bic r5, r5, #0x00ff0000 @ just in case
ldrb r7, [r11, #11]
tst r7, #3 @ full screen scroll? (if ==0)
ldrb r7, [r11, #16] @ ??hh??ww
ldreqh r5, [r10, r5]
biceq r5, r5, #0x0000fc00 @ r5=hscroll (0-0x3ff)
movne r5, r5, lsr #1
orrne r5, r5, #0x8000 @ this marks that we have htab pointer, not hscroll here
ldrb r7, [r11, #16] @ ??hh??ww
and r8, r7, #3
orr r5, r5, r7, lsl #1+24
@ -386,7 +386,7 @@ DrawLayerFull:
mov r8, r8, lsl #24+5
orr r8, r8, #0x1f000000
@ Find name table:
@ Find name table:
tst r0, r0
ldreqb r4, [r11, #2]
moveq r4, r4, lsr #3
@ -395,13 +395,13 @@ DrawLayerFull:
orr lr, lr, r4, lsl #13 @ lr|=nametab_bits{3}<<13
ldr r11, =PicoDraw2FB @ r11=PicoDraw2FB
ldr r11, [r11]
sub r4, r9, #(START_ROW<<24)
ldr r11, [r11]
mov r4, r4, asr #24
mov r7, #328*8
mla r11, r4, r7, r11 @ scrpos+=8*328*(planestart-START_ROW);
@ Get vertical scroll value:
@ Get vertical scroll value:
add r7, r10, #0x012000
add r7, r7, #0x000180 @ r7=Pico.vsram (Pico+0x22180)
ldr r7, [r7]
@ -454,10 +454,10 @@ DrawLayerFull:
ldrh r7, [r10, r7]
.rtr_hscroll_done:
and r8, r8, #0xff000000
rsb r4, r7, #0 @ r4=tilex=(-ts->hscroll)>>3
mov r4, r4, asr #3
and r4, r4, #0xff
and r8, r8, #0xff000000
orr r8, r8, r4 @ r8=(xmask<<24)|tilex
sub r7, r7, #1
@ -573,8 +573,8 @@ DrawTilesFromCacheF:
mvn r6, #0 @ r6=prevy=-1
ldr r4, =PicoDraw2FB @ r4=PicoDraw2FB
ldr r4, [r4]
ldr r1, [r0], #4 @ read y offset
ldr r4, [r4]
mov r7, #328
mla r1, r7, r1, r4
sub r12, r1, #(328*8*START_ROW) @ r12=scrpos
@ -591,7 +591,7 @@ DrawTilesFromCacheF:
movs r1, r7, lsr #16 @ r1=dx;
ldmeqfd sp!, {r4-r10,pc} @ dx is never zero, this must be a terminator, return
@ trow changed?
@ row changed?
cmp r6, r7, lsr #27
movne r6, r7, lsr #27
movne r4, #328*8
@ -697,12 +697,12 @@ DrawWindowFull:
mov r9, #0xff000000 @ r9=prevcode=-1
ldr r11, =PicoDraw2FB @ r11=scrpos
and r4, r0, #0xff
ldr r11, [r11]
sub r4, r4, #START_ROW
add r11, r11, #328*8
add r11, r11, #8
and r4, r0, #0xff
sub r4, r4, #START_ROW
mov r7, #328*8
mla r11, r7, r4, r11 @ scrpos+=8*328*(start-START_ROW);
mov r0, #0xf
@ -881,9 +881,9 @@ DrawSpriteFull:
mov r12, r3, lsl #23
mov r12, r12, lsr #23
sub r12, r12, #0x78 @ r12=sy
ldr lr, [r0, #4] @ lr=code
sub r12, r12, #0x78 @ r12=sy
mov r8, lr, lsl #7
mov r8, r8, lsr #23
sub r8, r8, #0x78 @ r8=sx
@ -894,9 +894,8 @@ DrawSpriteFull:
and r3, lr, #0x6000
mov r3, r3, lsr #9 @ r3=pal=((code>>9)&0x30);
ldr r10, =(Pico+0x10000) @ r10=Pico.vram
ldr r11, =PicoDraw2FB @ r11=scrpos
ldr r10, =(Pico+0x10000) @ r10=Pico.vram
ldr r11, [r11]
sub r1, r12, #(START_ROW*8)
mov r0, #328