DSPLLE: added lsrnr (based on lordmark and luigi suggestions) Still somethings seems wrong as it didn't fix the zelda problem:(
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3800 8ced0084-cf51-0410-be5f-012b33b47a6e
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@ -59,15 +59,14 @@ s16 ADPCM_Step(u32& _rSamplePos)
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_rSamplePos++;
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// The advanced interpolation (linear, polyphase,...) is done by the UCode, so we don't
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// need to bother with it here.
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// The advanced interpolation (linear, polyphase,...) is done by the UCode,
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// so we don't need to bother with it here.
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return val;
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}
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u16 dsp_read_aram_d3()
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{
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// Zelda ucode reads ARAM through 0xffd3.
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u32 Address = (gdsp_ifx_regs[DSP_ACCAH] << 16) | gdsp_ifx_regs[DSP_ACCAL];
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u8 value = 0;
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switch (gdsp_ifx_regs[DSP_FORMAT]) {
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@ -75,7 +74,7 @@ u16 dsp_read_aram_d3()
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value = DSPHost_ReadHostMemory(Address);
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break;
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default:
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ERROR_LOG(DSPLLE, "dsp_write_aram_d3: Unseen Format %i", gdsp_ifx_regs[DSP_FORMAT]);
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ERROR_LOG(DSPLLE, "dsp_read_aram_d3: Unseen Format %i", gdsp_ifx_regs[DSP_FORMAT]);
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break;
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}
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return value;
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@ -83,9 +82,8 @@ u16 dsp_read_aram_d3()
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void dsp_write_aram_d3(u16 value)
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{
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// Zelda ucode writes a bunch of zeros to ARAM through d3 during initialization.
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// Don't know if it ever does it later, too.
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// Zelda ucode writes a bunch of zeros to ARAM through d3 during
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// initialization. Don't know if it ever does it later, too.
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const u32 EndAddress = (gdsp_ifx_regs[DSP_ACEAH] << 16) | gdsp_ifx_regs[DSP_ACEAL];
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u32 Address = (gdsp_ifx_regs[DSP_ACCAH] << 16) | gdsp_ifx_regs[DSP_ACCAL];
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switch (gdsp_ifx_regs[DSP_FORMAT]) {
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@ -161,7 +161,7 @@ void gdsp_ifx_write(u16 addr, u16 val)
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break;
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case 0xd3: // ZeldaUnk (accelerator WRITE)
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INFO_LOG(DSPLLE, "Write To ZeldaUnk pc=%04x (%04x)", g_dsp.pc, val);
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NOTICE_LOG(DSPLLE, "Write To ZeldaUnk pc=%04x (%04x)", g_dsp.pc, val);
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dsp_write_aram_d3(val);
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break;
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@ -215,7 +215,7 @@ u16 gdsp_ifx_read(u16 addr)
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return dsp_read_accelerator();
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case 0xd3:
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ERROR_LOG(DSPLLE, "DSP read aram D3");
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NOTICE_LOG(DSPLLE, "Read from ZeldaUnk pc=%04x", g_dsp.pc);
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return dsp_read_aram_d3();
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default:
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@ -91,6 +91,8 @@ void Step()
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ProfilerDump(g_dsp.step_counter);
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}
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#endif
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// if (g_dsp.pc >= 0x0272 && g_dsp.pc <= 0x0282)
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// printf("pc %04x acc0 %04x acc1 %04x\n", g_dsp.pc, dsp_get_acc_m(0), dsp_get_acc_m(1));
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u16 opc = dsp_fetch_code();
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ExecuteInstruction(UDSPInstruction(opc));
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@ -118,6 +118,7 @@ void asl(const UDSPInstruction& opc);
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void asr(const UDSPInstruction& opc);
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void lsrn(const UDSPInstruction& opc);
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void asrn(const UDSPInstruction& opc);
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void lsrnr(const UDSPInstruction& opc);
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void dar(const UDSPInstruction& opc);
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void iar(const UDSPInstruction& opc);
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void sbclr(const UDSPInstruction& opc);
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@ -162,6 +162,7 @@ const DSPOPCTemplate opcodes[] =
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// discovered by ector!
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{"LSRN", 0x02ca, 0xffff, DSPInterpreter::lsrn, nop, 1, 0, {}, NULL, NULL},
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{"ASRN", 0x02cb, 0xffff, DSPInterpreter::asrn, nop, 1, 0, {}, NULL, NULL},
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{"LSRNR", 0x3c80, 0xfeff, DSPInterpreter::lsrnr, nop, 1, 1, {{P_ACC, 1, 0, 8, 0x0100}}, NULL, NULL},
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{"LRI", 0x0080, 0xffe0, DSPInterpreter::lri, nop, 2, 2, {{P_REG, 1, 0, 0, 0x001f}, {P_IMM, 2, 1, 0, 0xffff}}, NULL, NULL},
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{"LR", 0x00c0, 0xffe0, DSPInterpreter::lr, nop, 2, 2, {{P_REG, 1, 0, 0, 0x001f}, {P_MEM, 2, 1, 0, 0xffff}}, NULL, NULL},
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@ -269,8 +270,6 @@ const DSPOPCTemplate opcodes[] =
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{"XORR", 0x3000, 0xfcff, DSPInterpreter::xorr, nop, 1 | P_EXT, 2, {{P_ACCM, 1, 0, 8, 0x0100}, {P_REG1A, 1, 0, 9, 0x0200}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
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{"ANDR", 0x3400, 0xfcff, DSPInterpreter::andr, nop, 1 | P_EXT, 2, {{P_ACCM, 1, 0, 8, 0x0100}, {P_REG1A, 1, 0, 9, 0x0200}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
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{"ORR", 0x3800, 0xfcff, DSPInterpreter::orr, nop, 1 | P_EXT, 2, {{P_ACCM, 1, 0, 8, 0x0100}, {P_REG1A, 1, 0, 9, 0x0200}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
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{"ANDC", 0x3C00, 0xfeff, DSPInterpreter::andc, 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
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{"ORC", 0x3E00, 0xfeff, DSPInterpreter::orc, 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
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{"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},
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{"MULXMVZ", 0xa200, 0xe6ff, DSPInterpreter::mulxmvz, nop, 1 | P_EXT, 3, {{P_REGM18, 1, 0, 11, 0x1000}, {P_REGM19, 1, 0, 10, 0x0800}, {P_ACC, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
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@ -176,6 +176,7 @@ void orr(const UDSPInstruction& opc)
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Update_SR_Register64(acc);
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}
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/*
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// ANDC $acD.m, $ac(1-D).m
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// 0011 110d xxxx xxxx
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// Logic AND middle part of accumulator $acD.m with middle part of
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@ -207,7 +208,7 @@ void orc(const UDSPInstruction& opc)
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Update_SR_Register64(dsp_get_long_acc(D));
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}
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*/
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void orf(const UDSPInstruction& opc)
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{
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ERROR_LOG(DSPLLE, "orf not implemented");
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@ -659,7 +660,7 @@ void asr(const UDSPInstruction& opc)
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// (if value negative, becomes left shift).
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void lsrn(const UDSPInstruction& opc)
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{
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s16 shift = (s16)g_dsp.r[DSP_REG_ACM1];
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s16 shift = dsp_get_acc_m(1);
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u64 acc = dsp_get_long_acc(0);
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// Lop off the extraneous sign extension our 64-bit fake accum causes
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acc &= 0x000000FFFFFFFFFFULL;
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@ -679,7 +680,7 @@ void lsrn(const UDSPInstruction& opc)
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// (if value negative, becomes left shift).
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void asrn(const UDSPInstruction& opc)
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{
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s16 shift = (s16)g_dsp.r[DSP_REG_ACM1];
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s16 shift = dsp_get_acc_m(1);
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s64 acc = dsp_get_long_acc(0);
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if (shift > 0) {
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acc >>= shift;
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@ -690,6 +691,24 @@ void asrn(const UDSPInstruction& opc)
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Update_SR_Register64(acc);
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}
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// LSRNR $acR
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// 0011 110d 1100 0000
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// Logically shifts right accumulator $ACC0 by signed 16-bit value $AC0.M
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// Not described by Duddie's doc - at least not as a separate instruction.
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void lsrnr(const UDSPInstruction& opc)
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{
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u8 sreg = 1;//Check if it should be (opc.hex >> 8) & 0x1;
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s16 shift = dsp_get_acc_m(0);
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u64 acc = dsp_get_long_acc(sreg);
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acc &= 0x000000FFFFFFFFFFULL;
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if (shift > 0) {
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acc <<= shift;
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} else if (shift < 0) {
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acc >>= -shift;
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}
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dsp_set_long_acc(sreg, acc);
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Update_SR_Register64(acc);
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}
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// CMPAR $acS axR.h
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// 1100 0001 xxxx xxxx
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@ -709,6 +728,7 @@ void cmpar(const UDSPInstruction& opc)
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Update_SR_Register64(sr - rr);
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}
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// CMP
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// 1000 0010 xxxx xxxx
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// Compares accumulator $ac0 with accumulator $ac1.
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