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Changed the sm510 disassembler to use 'std::ostream &' internally

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This commit is contained in:
Nathan Woods 2016-10-29 22:53:40 -04:00
parent 06613b3dd1
commit 634d80654c
1 changed files with 16 additions and 8 deletions
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24
src/devices/cpu/sm510/sm510d.cpp
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@ -139,7 +139,7 @@ static const int8_t s_next_pc[0x40] =
// common disasm
static offs_t sm510_common_disasm(const uint8_t *lut_mnemonic, const uint8_t *lut_extended, char *buffer, offs_t pc, const uint8_t *oprom, const uint8_t *opram)
static offs_t sm510_common_disasm(const uint8_t *lut_mnemonic, const uint8_t *lut_extended, std::ostream &stream, offs_t pc, const uint8_t *oprom, const uint8_t *opram)
{
// get raw opcode
uint8_t op = oprom[0];
@ -163,36 +163,44 @@ static offs_t sm510_common_disasm(const uint8_t *lut_mnemonic, const uint8_t *lu
instr = lut_extended[param];
// disassemble it
char *dst = buffer;
dst += sprintf(dst, "%-6s ", s_mnemonics[instr]);
util::stream_format(stream, "%-6s ", s_mnemonics[instr]);
if (bits > 0)
{
if (bits <= 4)
{
if (param < 10)
dst += sprintf(dst, "%d", param);
util::stream_format(stream, "%d", param);
else
dst += sprintf(dst, "$%X", param);
util::stream_format(stream, "$%X", param);
}
else if (bits <= 8)
{
if (!is_extended)
dst += sprintf(dst, "$%02X", param);
util::stream_format(stream, "$%02X", param);
}
else
{
uint16_t address = (param << 4 & 0xc00) | (mask << 6 & 0x3c0) | (param & 0x03f);
dst += sprintf(dst, "$%03X", address);
util::stream_format(stream, "$%03X", address);
}
// show param offset
if (bits >= 8)
dst += sprintf(dst, " [$%03X]", pc + s_next_pc[pc & 0x3f]);
util::stream_format(stream, " [$%03X]", pc + s_next_pc[pc & 0x3f]);
}
return len | s_flags[instr] | DASMFLAG_SUPPORTED;
}
static offs_t sm510_common_disasm(const uint8_t *lut_mnemonic, const uint8_t *lut_extended, char *buffer, offs_t pc, const uint8_t *oprom, const uint8_t *opram)
{
std::ostringstream stream;
offs_t result = sm510_common_disasm(lut_mnemonic, lut_extended, stream, pc, oprom, opram);
std::string stream_str = stream.str();
strcpy(buffer, stream_str.c_str());
return result;
}
// SM510 disasm