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giz alpha1 release

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@259 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-09-23 21:24:44 +00:00
parent fd34fdd0f4
commit 2ec14aec8f
5 changed files with 107 additions and 44 deletions
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14
platform/gizmondo/asm_utils.s
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@ -8,8 +8,10 @@ vidCpy8to16_40:
mov r3, r3, lsr #1
orr r3, r3, r3, lsl #8
add r1, r1, #8
orr r3, r3, #(320/8-1)<<24
add r1, r1, #8
mov lr, #0xff
mov lr, lr, lsl #1
@ even lines
vcloop_40_aligned:
@ -63,10 +65,6 @@ vcloop_40_aligned:
mul r4, r5, r6
sub r1, r1, r4
@ FIXME FIXME FIXME
ldmfd sp!, {r4-r9,lr}
bx lr
vcloop_40_unaligned:
ldr r12, [r1], #4
ldr r7, [r1], #4
@ -75,7 +73,7 @@ vcloop_40_unaligned:
ldrh r4, [r2, r4]
and r5, lr, r12, lsr #7
ldrh r5, [r2, r5]
strh r4, [r0]!
strh r4, [r0], #2
and r6, lr, r12, lsr #15
ldrh r6, [r2, r6]
@ -94,12 +92,12 @@ vcloop_40_unaligned:
ldrh r12,[r2, r12]
and r4, lr, r7, lsr #23
ldrh r4, [r2, r6]
ldrh r4, [r2, r4]
orr r12,r6, r12,lsl #16
subs r3, r3, #1<<24
stmia r0!, {r5,r8,r12}
strh r4, [r0]!
strh r4, [r0], #2
bpl vcloop_40_unaligned
add r1, r1, #336 @ skip a line and 1 col