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DSP: mov impl / comments 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2895 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nakeee 2009-04-06 12:20:12 +00:00
parent 670ef16ace
commit 8af05ec4fb
4 changed files with 47 additions and 29 deletions
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26
Source/Plugins/Plugin_DSP_LLE-testing/Src/DSPInterpreter.cpp
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@ -127,6 +127,10 @@ void rti(const UDSPInstruction& opc)
g_dsp.exception_in_progress_hack = false;
}
// HALT
// 0000 0000 0020 0001
// Stops execution of DSP code. Sets bit DSP_CR_HALT in register DREG_CR.
void halt(const UDSPInstruction& opc)
{
g_dsp.cr |= 0x4;
@ -890,15 +894,18 @@ void inc(const UDSPInstruction& opc)
void neg(const UDSPInstruction& opc)
{
u8 areg = (opc.hex >> 8) & 0x1;
s64 acc = dsp_get_long_acc(areg);
acc = 0 - acc;
dsp_set_long_acc(areg, acc);
Update_SR_Register64(acc);
}
// MOVNP $acD
// 0111 111d xxxx xxxx
// Moves negative of multiply product from $prod register to accumulator
// $acD register.
void movnp(const UDSPInstruction& opc)
{
u8 dreg = (opc.hex >> 8) & 0x1;
@ -908,11 +915,16 @@ void movnp(const UDSPInstruction& opc)
dsp_set_long_acc(dreg, acc);
}
// TODO: Implement
// MOV $acD, $ac(1-D)
// 0110 110d xxxx xxxx
// Moves accumulator $ax(1-D) to accumulator $axD.
void mov(const UDSPInstruction& opc)
{
// UNIMPLEMENTED
ERROR_LOG(DSPHLE, "dsp_opc.hex_mov\n");
u8 D = (opc.hex >> 8) & 0x1;
u16 ac1 = dsp_get_acc_m(D);
u16 ac2 = dsp_get_acc_m(1 - D);
dsp_set_long_acc(D, ac1 + ac2);
}
// ADDAX $acD, $axS

2
Source/Plugins/Plugin_DSP_LLE-testing/Src/DSPInterpreter.h
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@ -95,6 +95,7 @@ void dar(const UDSPInstruction& opc);
void iar(const UDSPInstruction& opc);
void sbclr(const UDSPInstruction& opc);
void sbset(const UDSPInstruction& opc);
void mov(const UDSPInstruction& opc);
void movp(const UDSPInstruction& opc);
void mul(const UDSPInstruction& opc);
void mulac(const UDSPInstruction& opc);
@ -130,7 +131,6 @@ void ori(const UDSPInstruction& opc);
// END OF FIXMEs
// TODO: PENDING IMPLEMENTATION / UNIMPLEMENTED
void mov(const UDSPInstruction& opc);
// END OF UNIMPLEMENTED

11
Source/Plugins/Plugin_DSP_LLE-testing/Src/DSPTables.cpp
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@ -230,8 +230,6 @@ DSPOPCTemplate opcodes[] =
{"MOVNP", 0x7e00, 0xfeff, DSPInterpreter::movnp, nop, 1 | P_EXT, 1, {{P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"TST", 0xb100, 0xf7ff, DSPInterpreter::tst, nop, 1 | P_EXT, 1, {{P_ACCM, 1, 0, 11, 0x0800}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
// ??? is seen in burnout2 : opcode 0xa100
// {"???", 0xa100, 0xf7ff, DSPInterpreter::unknown,nop, 1 | P_EXT, 1, {{P_ACCM, 1, 0, 11, 0x0800}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"TSTAXH", 0x8600, 0xfeff, DSPInterpreter::tstaxh, nop, 1 | P_EXT, 1, {{P_REG1A, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
@ -267,19 +265,22 @@ DSPOPCTemplate opcodes[] =
{"ORC", 0x3E00, 0xfeff, nop, nop, 1 | P_EXT, 1, {{P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi}, // Hermes doesn't list this
{"MULX", 0xa000, 0xe7ff, DSPInterpreter::mulx, nop, 1 | P_EXT, 2, {{P_REGM18, 1, 0, 11, 0x1000}, {P_REGM19, 1, 0, 10, 0x0800}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
// {"MULX???", 0xa100, 0xf7ff, DSPInterpreter::unknown,nop, 1 | P_EXT, 1, {{P_ACCM, 1, 0, 11, 0x0800}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULXMVZ", 0xa200, 0xe6ff, DSPInterpreter::mulxmvz, nop, 1 | P_EXT, 3, {{P_REGM18, 1, 0, 11, 0x1000}, {P_REGM19, 1, 0, 10, 0x0800}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULXAC", 0xa400, 0xe6ff, DSPInterpreter::mulxac, nop, 1 | P_EXT, 3, {{P_REGM18, 1, 0, 11, 0x1000}, {P_REGM19, 1, 0, 10, 0x0800}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULXMV", 0xa600, 0xe6ff, DSPInterpreter::mulxmv, nop, 1 | P_EXT, 3, {{P_REGM18, 1, 0, 11, 0x1000}, {P_REGM19, 1, 0, 10, 0x0800}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULXMVZ", 0xa200, 0xe6ff, DSPInterpreter::mulxmvz, nop, 1 | P_EXT, 3, {{P_REGM18, 1, 0, 11, 0x1000}, {P_REGM19, 1, 0, 10, 0x0800}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MUL", 0x9000, 0xf7ff, DSPInterpreter::mul, nop, 1 | P_EXT, 2, {{P_REG18, 1, 0, 11, 0x0800}, {P_REG1A, 1, 0, 11, 0x0800}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULMVZ", 0x9200, 0xf6ff, DSPInterpreter::mulmvz, nop, 1 | P_EXT, 3, {{P_REG18, 1, 0, 11, 0x0800}, {P_REG1A, 1, 0, 11, 0x0800}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULAC", 0x9400, 0xf6ff, DSPInterpreter::mulac, nop, 1 | P_EXT, 3, {{P_REG18, 1, 0, 11, 0x0800}, {P_REG1A, 1, 0, 11, 0x0800}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULMV", 0x9600, 0xf6ff, DSPInterpreter::mulmv, nop, 1 | P_EXT, 3, {{P_REG18, 1, 0, 11, 0x0800}, {P_REG1A, 1, 0, 11, 0x0800}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULMVZ", 0x9200, 0xf6ff, DSPInterpreter::mulmvz, nop, 1 | P_EXT, 3, {{P_REG18, 1, 0, 11, 0x0800}, {P_REG1A, 1, 0, 11, 0x0800}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULC", 0xc000, 0xe7ff, DSPInterpreter::mulc, nop, 1 | P_EXT, 2, {{P_REG1A, 1, 0, 11, 0x0800}, {P_ACCM, 1, 0, 12, 0x1000}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULCMVZ", 0xc200, 0xe6ff, DSPInterpreter::mulcmvz, nop, 1 | P_EXT, 3, {{P_REG1A, 1, 0, 11, 0x0800}, {P_ACCM, 1, 0, 12, 0x1000}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULCAC", 0xc400, 0xe6ff, DSPInterpreter::mulcac, nop, 1 | P_EXT, 3, {{P_REG1A, 1, 0, 11, 0x0800}, {P_ACCM, 1, 0, 12, 0x1000}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULCMV", 0xc600, 0xe6ff, DSPInterpreter::mulcmv, nop, 1 | P_EXT, 3, {{P_REG1A, 1, 0, 11, 0x0800}, {P_ACCM, 1, 0, 12, 0x1000}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"MULCMVZ", 0xc200, 0xe6ff, DSPInterpreter::mulcmvz, nop, 1 | P_EXT, 3, {{P_REG1A, 1, 0, 11, 0x0800}, {P_ACCM, 1, 0, 12, 0x1000}, {P_ACCM, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"ADDR", 0x4000, 0xf8ff, DSPInterpreter::addr, nop, 1 | P_EXT, 2, {{P_ACCM, 1, 0, 8, 0x0100}, {P_REG18, 1, 0, 9, 0x0600}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"ADDAX", 0x4800, 0xfcff, DSPInterpreter::addax, nop, 1 | P_EXT, 2, {{P_ACCM, 1, 0, 8, 0x0100}, {P_REG18, 1, 0, 9, 0x0200}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},

37
Source/Plugins/Plugin_DSP_LLE-testing/Src/gdsp_memory.cpp
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@ -45,24 +45,29 @@ u16 dsp_imem_read(u16 addr)
u16 dsp_dmem_read(u16 addr)
{
switch (addr >> 12)
{
case 0x0: // 0xxx DRAM
return dsp_swap16(g_dsp.dram[addr & DSP_DRAM_MASK]);
switch (addr >> 12) {
case 0x0: // 0xxx DRAM
return dsp_swap16(g_dsp.dram[addr & DSP_DRAM_MASK]);
case 0x1: // 1xxx COEF
return dsp_swap16(g_dsp.coef[addr & DSP_COEF_MASK]);
case 0x8: // 8xxx DROM
ERROR_LOG(DSPHLE, "someone reads from ROM");
return dsp_swap16(g_dsp.drom[addr & DSP_DROM_MASK]);
// FIXME: unknown addresses used by zelda
/* case 0x2:
case 0x3:
case 0x4:
break;*/
case 0x1: // 1xxx COEF
return dsp_swap16(g_dsp.coef[addr & DSP_COEF_MASK]);
case 0xf: // Fxxx HW regs
return gdsp_ifx_read(addr);
default: // error
ERROR_LOG(DSPHLE, "%04x DSP ERROR: Read from UNKNOWN (%04x) memory", g_dsp.pc, addr);
return 0;
case 0x8: // 8xxx DROM
ERROR_LOG(DSPHLE, "someone reads from ROM");
return dsp_swap16(g_dsp.drom[addr & DSP_DROM_MASK]);
case 0xf: // Fxxx HW regs
return gdsp_ifx_read(addr);
default: // error
ERROR_LOG(DSPHLE, "%04x DSP ERROR: Read from UNKNOWN (%04x) memory", g_dsp.pc, addr);
return 0;
}
}