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Dreamcast: Assembly version sort of works now

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This commit is contained in:
UnknownShadow200 2024-07-07 12:46:15 +10:00
parent af07f6576f
commit 8831f6a589
2 changed files with 7 additions and 6 deletions
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12
misc/dreamcast/VertexDraw.S
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@ -63,7 +63,7 @@
fmov fr10,fr5 ! LS, fr5 = VIEWPORT_X_PLUS_HWIDTH
fmul fr8,fr4 ! FE, fr4 = VIEWPORT_HWIDTH * vertex->x
fmac fr0,fr4,fr5 ! FE, fr5 = fr0 * fr4 + fr5 -- (X * F * hwidth) + x_plus_hwidth
fmov.s fr5,@r5 ! LS, vertex->x = fr5
fmov.s fr5,@\R ! LS, vertex->x = fr5
add #4, \R ! EX, \R = &vertex->y
! TRANSFORM Y
@ -84,7 +84,7 @@
! CLOBBERS: r0, r2, r3
! INPUTS: r4, r8 (SQ global)
! OUTPUTS: r4,r8 altered, fr8-fr12
_HandleCommand1:
_HandleCommand:
mov.l @REG_V0,r2 ! r2 = v->flags
extu.b r2,r0 ! r2 = v->flags & 0xFF
cmp/eq #35,r0 ! T = r2 == 0x23
@ -181,9 +181,9 @@ _ProcessVertexList:
mov r6,r8
DO_CMD:
mov.l .L37,r2
jsr @r2
nop
mov.l .L37,r1
jsr @r1
mov r13,r4
bra NEXT_ITER
nop
@ -272,4 +272,4 @@ NEXT_ITER:
.long _Case_1_1_0_0
.long _Case_1_1_0_1
.long _Case_1_1_1_0
.long _Case1111
.long _Case_1_1_1_1

1
third_party/gldc/src/sh4.c vendored
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@ -389,6 +389,7 @@ static __attribute__((noinline)) void HandleCommand(Vertex* v) {
vp.y_plus_hheight = v->u;
}
extern void ProcessVertexList(Vertex* v3, int n, void* sq_addr);
void SceneListSubmit(Vertex* v3, int n, int type) {
vp = VIEWPORTS[type];
PVR_SET(SPAN_SORT_CFG, 0x0);