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DSPLLE added new LD code (please report games misbehaving)

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3887 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nakeee 2009-07-26 16:36:22 +00:00
parent 73a7686044
commit 07617f757c
2 changed files with 63 additions and 24 deletions
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83
Source/Core/DSPCore/Src/DSPIntExtOps.cpp
View file

@ -348,13 +348,22 @@ void slnm_epi(const UDSPInstruction& opc)
// xxxx xxxx 11dr 00ss
void ld(const UDSPInstruction& opc)
{
u8 dreg = (((opc.hex >> 5) & 0x1) << 1) + DSP_REG_AXL0;
u8 rreg = (((opc.hex >> 4) & 0x1) << 1) + DSP_REG_AXL1;
u8 dreg = (opc.hex >> 5) & 0x1;
u8 rreg = (opc.hex >> 4) & 0x1;
u8 sreg = opc.hex & 0x3;
g_dsp.r[dreg] = dsp_dmem_read(g_dsp.r[sreg]);
g_dsp.r[rreg] = dsp_dmem_read(g_dsp.r[DSP_REG_AR3]);
dsp_increment_addr_reg(sreg);
if (sreg != 0x03) {
g_dsp.r[(dreg << 1) + DSP_REG_AXL0] = dsp_dmem_read(g_dsp.r[sreg]);
g_dsp.r[(rreg << 1) + DSP_REG_AXL1] = dsp_dmem_read(g_dsp.r[sreg]);
dsp_increment_addr_reg(sreg);
} else {
g_dsp.r[rreg + DSP_REG_AXL0] = dsp_dmem_read(g_dsp.r[dreg]);
g_dsp.r[rreg + DSP_REG_AXH0] = dsp_dmem_read(g_dsp.r[dreg]);
dsp_increment_addr_reg(dreg);
}
dsp_increment_addr_reg(DSP_REG_AR3);
}
@ -363,29 +372,48 @@ void ld(const UDSPInstruction& opc)
// xxxx xxxx 11dr 01ss
void ldn(const UDSPInstruction& opc)
{
u8 dreg = (((opc.hex >> 5) & 0x1) << 1) + DSP_REG_AXL0;
u8 rreg = (((opc.hex >> 4) & 0x1) << 1) + DSP_REG_AXL1;
u8 dreg = (opc.hex >> 5) & 0x1;
u8 rreg = (opc.hex >> 4) & 0x1;
u8 sreg = opc.hex & 0x3;
g_dsp.r[dreg] = dsp_dmem_read(g_dsp.r[sreg]);
g_dsp.r[rreg] = dsp_dmem_read(g_dsp.r[DSP_REG_AR3]);
g_dsp.r[sreg] += g_dsp.r[sreg + DSP_REG_IX0];
dsp_increment_addr_reg(DSP_REG_AR3);
if (sreg != 0x03) {
g_dsp.r[(dreg << 1) + DSP_REG_AXL0] = dsp_dmem_read(g_dsp.r[sreg]);
g_dsp.r[(rreg << 1) + DSP_REG_AXL1] = dsp_dmem_read(g_dsp.r[sreg]);
dsp_increase_addr_reg(sreg, (s16)g_dsp.r[DSP_REG_IX0 + sreg]);
} else {
g_dsp.r[rreg + DSP_REG_AXL0] = dsp_dmem_read(g_dsp.r[dreg]);
g_dsp.r[rreg + DSP_REG_AXH0] = dsp_dmem_read(g_dsp.r[dreg]);
dsp_increase_addr_reg(dreg, (s16)g_dsp.r[DSP_REG_IX0 + dreg]);
}
dsp_increment_addr_reg(DSP_REG_AR3);
}
// Not in duddie's doc
// LDM $ax0.d $ax1.r @$arS
// xxxx xxxx 11dr 10ss
void ldm(const UDSPInstruction& opc)
{
u8 dreg = (((opc.hex >> 5) & 0x1) << 1) + DSP_REG_AXL0;
u8 rreg = (((opc.hex >> 4) & 0x1) << 1) + DSP_REG_AXL1;
u8 dreg = (opc.hex >> 5) & 0x1;
u8 rreg = (opc.hex >> 4) & 0x1;
u8 sreg = opc.hex & 0x3;
g_dsp.r[dreg] = dsp_dmem_read(g_dsp.r[sreg]);
g_dsp.r[rreg] = dsp_dmem_read(g_dsp.r[DSP_REG_AR3]);
dsp_increment_addr_reg(sreg);
g_dsp.r[DSP_REG_AR3] += g_dsp.r[DSP_REG_IX3];
if (sreg != 0x03) {
g_dsp.r[(dreg << 1) + DSP_REG_AXL0] = dsp_dmem_read(g_dsp.r[sreg]);
g_dsp.r[(rreg << 1) + DSP_REG_AXL1] = dsp_dmem_read(g_dsp.r[sreg]);
dsp_increment_addr_reg(sreg);
} else {
g_dsp.r[rreg + DSP_REG_AXL0] = dsp_dmem_read(g_dsp.r[dreg]);
g_dsp.r[rreg + DSP_REG_AXH0] = dsp_dmem_read(g_dsp.r[dreg]);
dsp_increment_addr_reg(dreg);
}
dsp_increase_addr_reg(DSP_REG_AR3, (s16)g_dsp.r[DSP_REG_IX0 + DSP_REG_AR3]);
}
// Not in duddie's doc
@ -393,14 +421,23 @@ void ldm(const UDSPInstruction& opc)
// xxxx xxxx 11dr 11ss
void ldnm(const UDSPInstruction& opc)
{
u8 dreg = (((opc.hex >> 5) & 0x1) << 1) + DSP_REG_AXL0;
u8 rreg = (((opc.hex >> 4) & 0x1) << 1) + DSP_REG_AXL1;
u8 dreg = (opc.hex >> 5) & 0x1;
u8 rreg = (opc.hex >> 4) & 0x1;
u8 sreg = opc.hex & 0x3;
g_dsp.r[dreg] = dsp_dmem_read(g_dsp.r[sreg]);
g_dsp.r[rreg] = dsp_dmem_read(g_dsp.r[DSP_REG_AR3]);
g_dsp.r[sreg] += g_dsp.r[sreg + DSP_REG_IX0];
g_dsp.r[DSP_REG_AR3] += g_dsp.r[DSP_REG_IX3];
if (sreg != 0x03) {
g_dsp.r[(dreg << 1) + DSP_REG_AXL0] = dsp_dmem_read(g_dsp.r[sreg]);
g_dsp.r[(rreg << 1) + DSP_REG_AXL1] = dsp_dmem_read(g_dsp.r[sreg]);
dsp_increase_addr_reg(sreg, (s16)g_dsp.r[DSP_REG_IX0 + sreg]);
} else {
g_dsp.r[rreg + DSP_REG_AXL0] = dsp_dmem_read(g_dsp.r[dreg]);
g_dsp.r[rreg + DSP_REG_AXH0] = dsp_dmem_read(g_dsp.r[dreg]);
dsp_increase_addr_reg(dreg, (s16)g_dsp.r[DSP_REG_IX0 + dreg]);
}
dsp_increase_addr_reg(DSP_REG_AR3, (s16)g_dsp.r[DSP_REG_IX0 + DSP_REG_AR3]);
}
void nop(const UDSPInstruction& opc)

4
docs/DSP/DSP_UC_Zelda.txt
View file

@ -1013,7 +1013,9 @@ void 0243_COMMAND_02() // sync frame
0278 181f lrr $AC1.M, @$AR0
0279 00de 0354 lr $AC0.M, @0x0354
027b 0240 000f andi $AC0.M, #0x000f
027d 3d80 andc'ls $AC1.M : $AX0.L, $AC0.M
// 027d 3d80 lsrnr
ACC1 <<= ACC0
027e 03c0 8000 andcf $AC1.M, #0x8000
// 0280 029c 03bc jlnz 0x03bc
GOTO NEXT_BLOCK: