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Diffstat (limited to 'src/devices/cpu/sm510/sm510d.cpp')
-rw-r--r--src/devices/cpu/sm510/sm510d.cpp188
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 &params, 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 &params)
{
- 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 &params)
{
// 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 &params)
{
// 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 &params)
{
// 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 &params)
+{
+ 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];
}
+