Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-25 17:56:43 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Changed the 8x300 disassembler to use 'std::ostream &' internally

Browse Source
This commit is contained in:
Nathan Woods 2016-11-11 09:41:28 -05:00
parent a9d260cf14
commit bae27af7e5
1 changed files with 42 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

94
src/devices/cpu/8x300/8x300dasm.cpp
View File

@ -41,9 +41,8 @@ static inline bool is_src_rot(uint16_t opcode)
return true;
}
CPU_DISASSEMBLE( n8x300 )
static offs_t internal_disasm_n8x300(cpu_device *device, std::ostream &stream, offs_t pc, const uint8_t *oprom, const uint8_t *opram, int options)
{
char tmp[16];
unsigned startpc = pc;
uint16_t opcode = (oprom[pc - startpc] << 8) | oprom[pc+1 - startpc];
uint8_t inst = opcode >> 13;
@ -53,99 +52,90 @@ CPU_DISASSEMBLE( n8x300 )
switch (inst)
{
case 0x00:
sprintf(buffer,"MOVE ");
strcat(buffer,reg_names[SRC]);
stream << "MOVE " << reg_names[SRC];
if(is_rot(opcode))
sprintf(tmp,"(%i),",ROTLEN);
util::stream_format(stream, "(%i),", ROTLEN);
else
sprintf(tmp,",%i,",ROTLEN);
strcat(buffer,tmp);
strcat(buffer,reg_names[DST]);
util::stream_format(stream, ",%i,", ROTLEN);
stream << reg_names[DST];
break;
case 0x01:
sprintf(buffer,"ADD ");
strcat(buffer,reg_names[SRC]);
stream << "ADD " << reg_names[SRC];
if(is_rot(opcode))
sprintf(tmp,"(%i),",ROTLEN);
util::stream_format(stream, "(%i),", ROTLEN);
else
sprintf(tmp,",%i,",ROTLEN);
strcat(buffer,tmp);
strcat(buffer,reg_names[DST]);
util::stream_format(stream, ",%i,", ROTLEN);
stream << reg_names[DST];
break;
case 0x02:
sprintf(buffer,"AND ");
strcat(buffer,reg_names[SRC]);
stream << "AND " << reg_names[SRC];
if(is_rot(opcode))
sprintf(tmp,"(%i),",ROTLEN);
util::stream_format(stream, "(%i),", ROTLEN);
else
sprintf(tmp,",%i,",ROTLEN);
strcat(buffer,tmp);
strcat(buffer,reg_names[DST]);
util::stream_format(stream, ",%i,", ROTLEN);
stream << reg_names[DST];
break;
case 0x03:
sprintf(buffer,"XOR ");
strcat(buffer,reg_names[SRC]);
stream << "XOR " << reg_names[SRC];
if(is_rot(opcode))
sprintf(tmp,"(%i),",ROTLEN);
util::stream_format(stream, "(%i),", ROTLEN);
else
sprintf(tmp,",%i,",ROTLEN);
strcat(buffer,tmp);
strcat(buffer,reg_names[DST]);
util::stream_format(stream, ",%i,", ROTLEN);
stream << reg_names[DST];
break;
case 0x04:
sprintf(buffer,"XEC ");
strcat(buffer,reg_names[SRC]);
stream << "XEC " << reg_names[SRC];
if(is_src_rot(opcode))
{
sprintf(tmp,",%02XH",IMM8);
strcat(buffer,tmp);
util::stream_format(stream, ",%02XH", IMM8);
}
else
{
sprintf(tmp,",%i",ROTLEN);
strcat(buffer,tmp);
sprintf(tmp,",%02XH",IMM5);
strcat(buffer,tmp);
util::stream_format(stream, ",%i", ROTLEN);
util::stream_format(stream, ",%02XH", IMM5);
}
break;
case 0x05:
sprintf(buffer,"NZT ");
strcat(buffer,reg_names[SRC]);
stream << "NZT " << reg_names[SRC];
if(is_src_rot(opcode))
{
sprintf(tmp,",%02XH",IMM8);
strcat(buffer,tmp);
util::stream_format(stream, ",%02XH", IMM8);
}
else
{
sprintf(tmp,",%i",ROTLEN);
strcat(buffer,tmp);
sprintf(tmp,",%02XH",IMM5);
strcat(buffer,tmp);
util::stream_format(stream, ",%i", ROTLEN);
util::stream_format(stream, ",%02XH", IMM5);
}
break;
case 0x06:
sprintf(buffer,"XMIT ");
stream << "XMIT ";
if(is_src_rot(opcode))
{
sprintf(tmp,"%02XH,",IMM8);
strcat(buffer,tmp);
strcat(buffer,reg_names[SRC]);
util::stream_format(stream, "%02XH,", IMM8);
stream << reg_names[SRC];
}
else
{
sprintf(tmp,"%02XH,",IMM5);
strcat(buffer,tmp);
strcat(buffer,reg_names[SRC]);
sprintf(tmp,",%i",ROTLEN);
strcat(buffer,tmp);
util::stream_format(stream, "%02XH,", IMM5);
stream << reg_names[SRC];
util::stream_format(stream, ",%i", ROTLEN);
}
break;
case 0x07:
sprintf(buffer,"JMP %04XH",opcode & 0x1fff);
util::stream_format(stream, "JMP %04XH", opcode & 0x1fff);
break;
}
return (pc - startpc);
}
CPU_DISASSEMBLE(n8x300)
{
std::ostringstream stream;
offs_t result = internal_disasm_n8x300(device, stream, pc, oprom, opram, options);
std::string stream_str = stream.str();
strcpy(buffer, stream_str.c_str());
return result;
}