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Merge pull request #1597 from npwoods/dasmstream_tms1000

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Changed the TMS1000 disassembler to use 'std::ostream &' internally
This commit is contained in:
R. Belmont 2016-10-29 20:49:46 -04:00 committed by GitHub
commit 862e5818bd
1 changed files with 16 additions and 7 deletions
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23
src/devices/cpu/tms1000/tms1k_dasm.cpp
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@ -223,7 +223,7 @@ static const uint8_t i4_value[16] =
0x0, 0x8, 0x4, 0xc, 0x2, 0xa, 0x6, 0xe, 0x1, 0x9, 0x5, 0xd, 0x3, 0xb, 0x7, 0xf
};
static offs_t tms1k_dasm(char *dst, const uint8_t *oprom, const uint8_t *lut_mnemonic, uint16_t opcode_mask)
static offs_t tms1k_dasm(std::ostream &stream, const uint8_t *oprom, const uint8_t *lut_mnemonic, uint16_t opcode_mask)
{
// get current opcode
int pos = 0;
@ -233,24 +233,24 @@ static offs_t tms1k_dasm(char *dst, const uint8_t *oprom, const uint8_t *lut_mne
// convert to mnemonic/param
uint16_t instr = lut_mnemonic[op];
dst += sprintf(dst, "%-8s ", s_mnemonic[instr]);
util::stream_format(stream, "%-8s ", s_mnemonic[instr]);
switch( s_addressing[instr] )
{
case zI2:
dst += sprintf(dst, "%d", i2_value[op & 0x03]);
util::stream_format(stream, "%d", i2_value[op & 0x03]);
break;
case zI3:
dst += sprintf(dst, "%d", i3_value[op & 0x07]);
util::stream_format(stream, "%d", i3_value[op & 0x07]);
break;
case zI4:
dst += sprintf(dst, "%d", i4_value[op & 0x0f]);
util::stream_format(stream, "%d", i4_value[op & 0x0f]);
break;
case zB7:
if (opcode_mask & 0x100)
dst += sprintf(dst, "$%02X", op << 1 & 0xfe);
util::stream_format(stream, "$%02X", op << 1 & 0xfe);
else
dst += sprintf(dst, "$%02X", op & 0x3f);
util::stream_format(stream, "$%02X", op & 0x3f);
break;
default:
break;
@ -259,6 +259,15 @@ static offs_t tms1k_dasm(char *dst, const uint8_t *oprom, const uint8_t *lut_mne
return pos | s_flags[instr] | DASMFLAG_SUPPORTED;
}
static offs_t tms1k_dasm(char *buffer, const uint8_t *oprom, const uint8_t *lut_mnemonic, uint16_t opcode_mask)
{
std::ostringstream stream;
offs_t result = tms1k_dasm(stream, oprom, lut_mnemonic, opcode_mask);
std::string stream_str = stream.str();
strcpy(buffer, stream_str.c_str());
return result;
}
CPU_DISASSEMBLE(tms1000)
{