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Changed the sc61860 disassembler to use 'std::ostream &' internally

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This commit is contained in:
Nathan Woods 2016-11-03 06:36:30 -04:00
parent 3ee5564b78
commit 87672cf2d3
1 changed files with 22 additions and 12 deletions
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34
src/devices/cpu/sc61860/scdasm.cpp
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@ -152,7 +152,7 @@ static const struct { const char *mnemonic; Adr adr; } table[]={
{ nullptr }, { nullptr }, { nullptr }, { nullptr }, { nullptr }, { nullptr }, { nullptr }, { nullptr },
};
CPU_DISASSEMBLE( sc61860 )
static offs_t internal_disasm_sc61860(cpu_device *device, std::ostream &stream, offs_t pc, const uint8_t *oprom, const uint8_t *opram, int options)
{
const uint8_t *base_oprom = oprom;
int oper=*(oprom++);
@ -161,42 +161,42 @@ CPU_DISASSEMBLE( sc61860 )
switch(oper&0xc0) {
case 0x80:
sprintf(buffer,"%-6s%.2x",table[oper&0x80].mnemonic, oper&0x3f);
util::stream_format(stream,"%-6s%02x",table[oper&0x80].mnemonic, oper&0x3f);
break;
default:
switch(oper&0xe0) {
case 0xe0:
sprintf(buffer,"%-6s%.4x",table[oper&0xe0].mnemonic,
util::stream_format(stream,"%-6s%04x",table[oper&0xe0].mnemonic,
*(oprom++)|((oper&0x1f)<<8));
break;
default:
switch (table[oper].adr) {
case Ill: sprintf(buffer,"?%.2x",oper);break;
case Imp: sprintf(buffer,"%s",table[oper].mnemonic); break;
case Imm: sprintf(buffer,"%-6s%.2x",table[oper].mnemonic, *(oprom++)); break;
case Ill: util::stream_format(stream,"?%02x",oper);break;
case Imp: util::stream_format(stream,"%s",table[oper].mnemonic); break;
case Imm: util::stream_format(stream,"%-6s%02x",table[oper].mnemonic, *(oprom++)); break;
case ImmW:
adr=(oprom[0]<<8)|oprom[1];oprom+=2;
sprintf(buffer,"%-6s%.4x",table[oper].mnemonic, adr);
util::stream_format(stream,"%-6s%04x",table[oper].mnemonic, adr);
break;
case Abs:
adr=(oprom[0]<<8)|oprom[1];oprom+=2;
sprintf(buffer,"%-6s%.4x",table[oper].mnemonic, adr);
util::stream_format(stream,"%-6s%04x",table[oper].mnemonic, adr);
break;
case RelM:
adr=pc-*(oprom++);
sprintf(buffer,"%-6s%.4x",table[oper].mnemonic, adr&0xffff);
util::stream_format(stream,"%-6s%04x",table[oper].mnemonic, adr&0xffff);
break;
case RelP:
adr=pc+*(oprom++);
sprintf(buffer,"%-6s%.4x",table[oper].mnemonic, adr&0xffff);
util::stream_format(stream,"%-6s%04x",table[oper].mnemonic, adr&0xffff);
break;
case Ptc:
t=*(oprom++);
adr=(oprom[0]<<8)|oprom[1];oprom+=2;
sprintf(buffer,"%-6s%.2x,%.4x",table[oper].mnemonic,t, adr);
util::stream_format(stream,"%-6s%02x,%04x",table[oper].mnemonic,t, adr);
break;
case Etc:
sprintf(buffer,"%-6s",table[oper].mnemonic);
util::stream_format(stream,"%-6s",table[oper].mnemonic);
/*H imm, abs */
/* abs */
break;
@ -208,3 +208,13 @@ CPU_DISASSEMBLE( sc61860 )
}
return oprom - base_oprom;
}
CPU_DISASSEMBLE(sc61860)
{
std::ostringstream stream;
offs_t result = internal_disasm_sc61860(device, stream, pc, oprom, opram, options);
std::string stream_str = stream.str();
strcpy(buffer, stream_str.c_str());
return result;
}