diff options
Diffstat (limited to 'src/devices/cpu/sm510/sm510d.cpp')
-rw-r--r-- | src/devices/cpu/sm510/sm510d.cpp | 188 |
1 files changed, 126 insertions, 62 deletions
diff --git a/src/devices/cpu/sm510/sm510d.cpp b/src/devices/cpu/sm510/sm510d.cpp index 4ec634b4771..186efde5cbc 100644 --- a/src/devices/cpu/sm510/sm510d.cpp +++ b/src/devices/cpu/sm510/sm510d.cpp @@ -7,40 +7,12 @@ */ #include "emu.h" -#include "debugger.h" -#include "sm510.h" +#include "sm510d.h" // common lookup tables -enum e_mnemonics -{ - // SM510 common - mILL /* 0! */, mEXT, - mLB, mLBL, mSBM, mEXBLA, mINCB, mDECB, - mATPL, mRTN0, mRTN1, mTL, mTML, mTM, mT, - mEXC, mBDC, mEXCI, mEXCD, mLDA, mLAX, mPTW, mWR, mWS, - mKTA, mATBP, mATX, mATL, mATFC, mATR, - mADD, mADD11, mADX, mCOMA, mROT, mRC, mSC, - mTB, mTC, mTAM, mTMI, mTA0, mTABL, mTIS, mTAL, mTF1, mTF4, - mRM, mSM, - mPRE, mSME, mRME, mTMEL, - mSKIP, mCEND, mIDIV, mDR, mDTA, mCLKLO, mCLKHI, - - // SM500 common - mCOMCB, mRTN, mRTNS, mSSR, mTR, mTRS, mRBM, - mADDC, mPDTW, mTW, mDTW, - mATS, mEXKSA, mEXKFA, - mRMF, mSMF, mCOMCN, - mTA, mTM2, mTG, - - // SM590 aliases - mNOP, mCCTRL, mINBL, mDEBL, mXBLA, mADCS, mTR7, - // SM590 uniques - mTAX, mLBLX, mMTR, mSTR, mINBM, mDEBM, mRTA, mBLTA, mEXAX, mTBA, mADS, mADC, mLBMX, mTLS -}; - -static const char *const s_mnemonics[] = +const char *const sm510_common_disassembler::s_mnemonics[] = { "?", "", "LB", "LBL", "SBM", "EXBLA", "INCB", "DECB", @@ -67,7 +39,7 @@ static const char *const s_mnemonics[] = }; // number of bits per opcode parameter, 8 or larger means 2-byte opcode -static const u8 s_bits[] = +const u8 sm510_common_disassembler::s_bits[] = { 0, 8, 4, 8, 0, 0, 0, 0, @@ -93,42 +65,39 @@ static const u8 s_bits[] = 4, 4, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 2, 2+8 }; -#define _OVER DASMFLAG_STEP_OVER -#define _OUT DASMFLAG_STEP_OUT - -static const u32 s_flags[] = +const u32 sm510_common_disassembler::s_flags[] = { 0, 0, 0, 0, 0, 0, 0, 0, - 0, _OUT, _OUT, 0, _OVER, _OVER, 0, + 0, STEP_OUT, STEP_OUT, 0, STEP_OVER, STEP_OVER, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, _OVER, 0, 0, 0, 0, 0, + 0, STEP_OVER, 0, 0, 0, 0, 0, // - 0, _OUT, _OUT, 0, 0, _OVER, 0, + 0, STEP_OUT, STEP_OUT, 0, 0, STEP_OVER, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // - 0, 0, 0, 0, 0, 0, _OVER, + 0, 0, 0, 0, 0, 0, STEP_OVER, // - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, _OVER + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, STEP_OVER }; // common disasm -static offs_t sm510_common_disasm(const u8 *lut_mnemonic, const u8 *lut_extended, std::ostream &stream, offs_t pc, const u8 *oprom, const u8 *opram) +offs_t sm510_common_disassembler::common_disasm(const u8 *lut_mnemonic, const u8 *lut_extended, std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms, const u8 pclen) { // get raw opcode - u8 op = oprom[0]; + u8 op = opcodes.r8(pc); u8 instr = lut_mnemonic[op]; int len = 1; @@ -137,7 +106,19 @@ static offs_t sm510_common_disasm(const u8 *lut_mnemonic, const u8 *lut_extended u16 param = mask; if (bits >= 8) { - param = oprom[1]; + if (pclen == 6) + { + int feed = ((pc >> 1 ^ pc) & 1) ? 0 : 0x20; + pc = feed | (pc >> 1 & 0x1f) | (pc & ~0x3f); + } + else if (pclen == 7) + { + int feed = ((pc >> 1 ^ pc) & 1) ? 0 : 0x40; + pc = feed | (pc >> 1 & 0x3f) | (pc & ~0x7f); + } + else + abort(); + param = params.r8(pc); len++; } @@ -169,13 +150,13 @@ static offs_t sm510_common_disasm(const u8 *lut_mnemonic, const u8 *lut_extended } } - return len | s_flags[instr] | DASMFLAG_SUPPORTED; + return len | s_flags[instr] |SUPPORTED; } // SM510 disasm -static const u8 sm510_mnemonic[0x100] = +const u8 sm510_disassembler::sm510_mnemonic[0x100] = { /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */ mSKIP, mATBP, mSBM, mATPL, mRM, mRM, mRM, mRM, mADD, mADD11,mCOMA, mEXBLA,mSM, mSM, mSM, mSM, // 0 @@ -199,15 +180,15 @@ static const u8 sm510_mnemonic[0x100] = mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM // F }; -CPU_DISASSEMBLE(sm510) +offs_t sm510_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) { - return sm510_common_disasm(sm510_mnemonic, nullptr, stream, pc, oprom, opram); + return common_disasm(sm510_mnemonic, nullptr, stream, pc, opcodes, params, 6); } // SM511 disasm -static const u8 sm511_mnemonic[0x100] = +const u8 sm511_disassembler::sm511_mnemonic[0x100] = { /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */ mROT, mDTA, mSBM, mATPL, mRM, mRM, mRM, mRM, mADD, mADD11,mCOMA, mEXBLA,mSM, mSM, mSM, mSM, // 0 @@ -231,25 +212,25 @@ static const u8 sm511_mnemonic[0x100] = mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM, mTM // F }; -static const u8 sm511_extended[0x10] = +const u8 sm511_disassembler::sm511_extended[0x10] = { mRME, mSME, mTMEL, mATFC, mBDC, mATBP, mCLKHI,mCLKLO,0, 0, 0, 0, 0, 0, 0, 0 // 60 3 }; -CPU_DISASSEMBLE(sm511) +offs_t sm511_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) { // create extended opcode table u8 ext[0x100]; memset(ext, 0, 0x100); memcpy(ext + 0x30, sm511_extended, 0x10); - return sm510_common_disasm(sm511_mnemonic, ext, stream, pc, oprom, opram); + return common_disasm(sm511_mnemonic, ext, stream, pc, opcodes, params, 6); } // SM500 disasm -static const u8 sm500_mnemonic[0x100] = +const u8 sm500_disassembler::sm500_mnemonic[0x100] = { /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */ mSKIP, mATR, mEXKSA,mATBP, mRM, mRM, mRM, mRM, mADD, mADDC, mCOMA, mEXBLA,mSM, mSM, mSM, mSM, // 0 @@ -273,25 +254,25 @@ static const u8 sm500_mnemonic[0x100] = mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS // F }; -static const u8 sm500_extended[0x10] = +const u8 sm500_disassembler::sm500_extended[0x10] = { mCEND, 0, 0, 0, mDTA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // 5E 0 }; -CPU_DISASSEMBLE(sm500) +offs_t sm500_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) { // create extended opcode table u8 ext[0x100]; memset(ext, 0, 0x100); memcpy(ext + 0x00, sm500_extended, 0x10); - return sm510_common_disasm(sm500_mnemonic, ext, stream, pc, oprom, opram); + return common_disasm(sm500_mnemonic, ext, stream, pc, opcodes, params, 6); } // SM5A disasm -static const u8 sm5a_mnemonic[0x100] = +const u8 sm5a_disassembler::sm5a_mnemonic[0x100] = { /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */ mSKIP, mATR, mSBM, mATBP, mRM, mRM, mRM, mRM, mADD, mADDC, mCOMA, mEXBLA,mSM, mSM, mSM, mSM, // 0 @@ -315,25 +296,25 @@ static const u8 sm5a_mnemonic[0x100] = mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS, mTRS // F }; -static const u8 sm5a_extended[0x10] = +const u8 sm5a_disassembler::sm5a_extended[0x10] = { mCEND, 0, 0, 0, mDTA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // 5E 0 }; -CPU_DISASSEMBLE(sm5a) +offs_t sm5a_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) { // create extended opcode table u8 ext[0x100]; memset(ext, 0, 0x100); memcpy(ext + 0x00, sm5a_extended, 0x10); - return sm510_common_disasm(sm5a_mnemonic, ext, stream, pc, oprom, opram); + return common_disasm(sm5a_mnemonic, ext, stream, pc, opcodes, params, 6); } // SM590 disasm -static const u8 sm590_mnemonic[0x100] = +const u8 sm590_disassembler::sm590_mnemonic[0x100] = { /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */ mNOP, mADX, mADX, mADX, mADX, mADX, mADX, mADX, mADX, mADX, mADX, mADX, mADX, mADX, mADX, mADX, // 0 @@ -358,7 +339,90 @@ static const u8 sm590_mnemonic[0x100] = }; -CPU_DISASSEMBLE(sm590) +offs_t sm590_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) +{ + return common_disasm(sm590_mnemonic, nullptr, stream, pc, opcodes, params, 7); +} + +u32 sm510_common_disassembler::opcode_alignment() const +{ + return 1; +} + +u32 sm510_common_disassembler::interface_flags() const +{ + return NONLINEAR_PC|PAGED2LEVEL; +} + +u32 sm510_common_disassembler::page_address_bits() const +{ + return 6; +} + +u32 sm510_common_disassembler::page2_address_bits() const +{ + return 4; +} + +offs_t sm510_common_disassembler::pc_linear_to_real(offs_t pc) const +{ + static const u8 l2r[64] = { + 0x00, 0x20, 0x30, 0x38, 0x3c, 0x3e, 0x1f, 0x2f, 0x37, 0x3b, 0x3d, 0x1e, 0x0f, 0x27, 0x33, 0x39, + 0x1c, 0x2e, 0x17, 0x2b, 0x35, 0x1a, 0x0d, 0x06, 0x03, 0x21, 0x10, 0x28, 0x34, 0x3a, 0x1d, 0x0e, + 0x07, 0x23, 0x31, 0x18, 0x2c, 0x36, 0x1b, 0x2d, 0x16, 0x0b, 0x25, 0x12, 0x09, 0x04, 0x22, 0x11, + 0x08, 0x24, 0x32, 0x19, 0x0c, 0x26, 0x13, 0x29, 0x14, 0x2a, 0x15, 0x0a, 0x05, 0x02, 0x01, 0x3f, + }; + return (pc & ~0x3f) | l2r[pc & 0x3f]; +} + +offs_t sm510_common_disassembler::pc_real_to_linear(offs_t pc) const +{ + static const u8 r2l[64] = { + 0x00, 0x3e, 0x3d, 0x18, 0x2d, 0x3c, 0x17, 0x20, 0x30, 0x2c, 0x3b, 0x29, 0x34, 0x16, 0x1f, 0x0c, + 0x1a, 0x2f, 0x2b, 0x36, 0x38, 0x3a, 0x28, 0x12, 0x23, 0x33, 0x15, 0x26, 0x10, 0x1e, 0x0b, 0x06, + 0x01, 0x19, 0x2e, 0x21, 0x31, 0x2a, 0x35, 0x0d, 0x1b, 0x37, 0x39, 0x13, 0x24, 0x27, 0x11, 0x07, + 0x02, 0x22, 0x32, 0x0e, 0x1c, 0x14, 0x25, 0x08, 0x03, 0x0f, 0x1d, 0x09, 0x04, 0x0a, 0x05, 0x3f, + }; + return (pc & ~0x3f) | r2l[pc & 0x3f]; +} + +u32 sm590_disassembler::page_address_bits() const +{ + return 7; +} + +u32 sm590_disassembler::page2_address_bits() const +{ + return 2; +} + +offs_t sm590_disassembler::pc_linear_to_real(offs_t pc) const +{ + static const u8 l2r[128] = { + 0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x3f, 0x5f, 0x6f, 0x77, 0x7b, 0x7d, 0x3e, 0x1f, 0x4f, + 0x67, 0x73, 0x79, 0x3c, 0x5e, 0x2f, 0x57, 0x6b, 0x75, 0x3a, 0x1d, 0x0e, 0x07, 0x43, 0x61, 0x30, + 0x58, 0x6c, 0x76, 0x3b, 0x5d, 0x2e, 0x17, 0x4b, 0x65, 0x32, 0x19, 0x0c, 0x46, 0x23, 0x51, 0x28, + 0x54, 0x6a, 0x35, 0x1a, 0x0d, 0x06, 0x03, 0x41, 0x20, 0x50, 0x68, 0x74, 0x7a, 0x3d, 0x1e, 0x0f, + 0x47, 0x63, 0x71, 0x38, 0x5c, 0x6e, 0x37, 0x5b, 0x6d, 0x36, 0x1b, 0x4d, 0x26, 0x13, 0x49, 0x24, + 0x52, 0x29, 0x14, 0x4a, 0x25, 0x12, 0x09, 0x04, 0x42, 0x21, 0x10, 0x48, 0x64, 0x72, 0x39, 0x1c, + 0x4e, 0x27, 0x53, 0x69, 0x34, 0x5a, 0x2d, 0x16, 0x0b, 0x45, 0x22, 0x11, 0x08, 0x44, 0x62, 0x31, + 0x18, 0x4c, 0x66, 0x33, 0x59, 0x2c, 0x56, 0x2b, 0x55, 0x2a, 0x15, 0x0a, 0x05, 0x02, 0x01, 0x7f, + }; + return (pc & ~0x7f) | l2r[pc & 0x7f]; +} + +offs_t sm590_disassembler::pc_real_to_linear(offs_t pc) const { - return sm510_common_disasm(sm590_mnemonic, nullptr, stream, pc, oprom, opram); + static const u8 r2l[128] = { + 0x00, 0x7e, 0x7d, 0x36, 0x57, 0x7c, 0x35, 0x1c, 0x6c, 0x56, 0x7b, 0x68, 0x2b, 0x34, 0x1b, 0x3f, + 0x5a, 0x6b, 0x55, 0x4d, 0x52, 0x7a, 0x67, 0x26, 0x70, 0x2a, 0x33, 0x4a, 0x5f, 0x1a, 0x3e, 0x0e, + 0x38, 0x59, 0x6a, 0x2d, 0x4f, 0x54, 0x4c, 0x61, 0x2f, 0x51, 0x79, 0x77, 0x75, 0x66, 0x25, 0x15, + 0x1f, 0x6f, 0x29, 0x73, 0x64, 0x32, 0x49, 0x46, 0x43, 0x5e, 0x19, 0x23, 0x13, 0x3d, 0x0d, 0x07, + 0x01, 0x37, 0x58, 0x1d, 0x6d, 0x69, 0x2c, 0x40, 0x5b, 0x4e, 0x53, 0x27, 0x71, 0x4b, 0x60, 0x0f, + 0x39, 0x2e, 0x50, 0x62, 0x30, 0x78, 0x76, 0x16, 0x20, 0x74, 0x65, 0x47, 0x44, 0x24, 0x14, 0x08, + 0x02, 0x1e, 0x6e, 0x41, 0x5c, 0x28, 0x72, 0x10, 0x3a, 0x63, 0x31, 0x17, 0x21, 0x48, 0x45, 0x09, + 0x03, 0x42, 0x5d, 0x11, 0x3b, 0x18, 0x22, 0x0a, 0x04, 0x12, 0x3c, 0x0b, 0x05, 0x0c, 0x06, 0x7f, + }; + return (pc & ~0x7f) | r2l[pc & 0x7f]; } + |