Miroirs/mame
1
0
Fork 0
mirror of https://github.com/mamedev/mame.git synced 2024-11-18 10:06:19 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 5

cop400: Fixed disassembly of jump instructions and used decimal for LDD/XAD. [Curt Coder]

Browse source
This commit is contained in:
Curt Coder 2017-01-10 11:22:41 +02:00
parent 2c2e538488
commit b4e5fdcedb
4 changed files with 33 additions and 31 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/devices/cpu/cop400/cop400.cpp
View file

@ -49,10 +49,6 @@
TODO:
- remove InstLen
- run interrupt test suite
- run production test suite
- run microbus test suite
- when is the microbus int cleared?
- opcode support for 2048x8 and 128x4/160x4 memory sizes
- CKO sync input
- save internal RAM when CKO is RAM power supply pin

20
src/devices/cpu/cop400/cop410ds.cpp
View file

@ -20,22 +20,24 @@ CPU_DISASSEMBLE(cop410)
if ((opcode >= 0x80 && opcode <= 0xBE) || (opcode >= 0xC0 && opcode <= 0xFE))
{
if ((pc & 0x3E0) >= 0x80 && (pc & 0x3E0) < 0x100) //JP pages 2,3
int page = pc >> 6;
if (page == 2 | page == 3) //JP pages 2,3
{
address = (uint16_t)((pc & 0x380) | (opcode & 0x7F));
util::stream_format(stream, "JP %x", address);
address = (uint16_t)((pc & 0x180) | (opcode & 0x7F));
util::stream_format(stream, "JP %03x", address);
}
else
{
if ((opcode & 0xC0) == 0xC0) //JP other pages
{
address = (uint16_t)((pc & 0x3C0) | (opcode & 0x3F));
util::stream_format(stream, "JP %x", address);
address = (uint16_t)((pc & 0x1C0) | (opcode & 0x3F));
util::stream_format(stream, "JP %03x", address);
}
else //JSRP
{
address = (uint16_t)(0x80 | (opcode & 0x3F));
util::stream_format(stream, "JSRP %x", address);
util::stream_format(stream, "JSRP %03x", address);
flags = DASMFLAG_STEP_OVER;
}
}
@ -63,13 +65,13 @@ CPU_DISASSEMBLE(cop410)
else if (opcode >= 0x60 && opcode <= 0x61)
{
address = ((opcode & 0x01) << 8) | next_opcode;
util::stream_format(stream, "JMP %x", address);
util::stream_format(stream, "JMP %03x", address);
bytes = 2;
}
else if (opcode >= 0x68 && opcode <= 0x69)
{
address = ((opcode & 0x01) << 8) | next_opcode;
util::stream_format(stream, "JSR %x", address);
util::stream_format(stream, "JSR %03x", address);
flags = DASMFLAG_STEP_OVER;
bytes = 2;
}
@ -155,7 +157,7 @@ CPU_DISASSEMBLE(cop410)
if (next_opcode >= 0x80 && next_opcode <= 0xbf)
{
address = (uint16_t)(next_opcode & 0x3F);
util::stream_format(stream, "XAD %x,%x", ((address & 0x30) >> 4),address & 0x0F);
util::stream_format(stream, "XAD %u,%u", ((address & 0x30) >> 4),address & 0x0F);
}
else
{

18
src/devices/cpu/cop400/cop420ds.cpp
View file

@ -20,22 +20,24 @@ CPU_DISASSEMBLE(cop420)
if ((opcode >= 0x80 && opcode <= 0xBE) || (opcode >= 0xC0 && opcode <= 0xFE))
{
if ((pc & 0x3E0) >= 0x80 && (pc & 0x3E0) < 0x100) //JP pages 2,3
int page = pc >> 6;
if (page == 2 | page == 3) //JP pages 2,3
{
address = (uint16_t)((pc & 0x380) | (opcode & 0x7F));
util::stream_format(stream, "JP %x", address);
util::stream_format(stream, "JP %03x", address);
}
else
{
if ((opcode & 0xC0) == 0xC0) //JP other pages
{
address = (uint16_t)((pc & 0x3C0) | (opcode & 0x3F));
util::stream_format(stream, "JP %x", address);
util::stream_format(stream, "JP %03x", address);
}
else //JSRP
{
address = (uint16_t)(0x80 | (opcode & 0x3F));
util::stream_format(stream, "JSRP %x", address);
util::stream_format(stream, "JSRP %03x", address);
flags = DASMFLAG_STEP_OVER;
}
}
@ -63,13 +65,13 @@ CPU_DISASSEMBLE(cop420)
else if (opcode >= 0x60 && opcode <= 0x63)
{
address = ((opcode & 0x03) << 8) | next_opcode;
util::stream_format(stream, "JMP %x", address);
util::stream_format(stream, "JMP %03x", address);
bytes = 2;
}
else if (opcode >= 0x68 && opcode <= 0x6B)
{
address = ((opcode & 0x03) << 8) | next_opcode;
util::stream_format(stream, "JSR %x", address);
util::stream_format(stream, "JSR %03x", address);
flags = DASMFLAG_STEP_OVER;
bytes = 2;
}
@ -163,12 +165,12 @@ CPU_DISASSEMBLE(cop420)
if (next_opcode <= 0x3f)
{
address = (uint16_t)(next_opcode & 0x3F);
util::stream_format(stream, "LDD %x,%x", ((address & 0x30) >> 4),address & 0x0F);
util::stream_format(stream, "LDD %u,%u", ((address & 0x30) >> 4),address & 0x0F);
}
else if (next_opcode >= 0x80 && next_opcode <= 0xbf)
{
address = (uint16_t)(next_opcode & 0x3F);
util::stream_format(stream, "XAD %x,%x", ((address & 0x30) >> 4),address & 0x0F);
util::stream_format(stream, "XAD %u,%u", ((address & 0x30) >> 4),address & 0x0F);
}
else
{

22
src/devices/cpu/cop400/cop440ds.cpp
View file

@ -20,22 +20,24 @@ CPU_DISASSEMBLE(cop444)
if ((opcode >= 0x80 && opcode <= 0xBE) || (opcode >= 0xC0 && opcode <= 0xFE))
{
if ((pc & 0x3E0) >= 0x80 && (pc & 0x3E0) < 0x100) //JP pages 2,3
int page = pc >> 6;
if (page == 2 | page == 3) //JP pages 2,3
{
address = (uint16_t)((pc & 0x380) | (opcode & 0x7F));
util::stream_format(stream, "JP %x", address);
address = (uint16_t)((pc & 0x780) | (opcode & 0x7F));
util::stream_format(stream, "JP %03x", address);
}
else
{
if ((opcode & 0xC0) == 0xC0) //JP other pages
{
address = (uint16_t)((pc & 0x3C0) | (opcode & 0x3F));
util::stream_format(stream, "JP %x", address);
address = (uint16_t)((pc & 0x7C0) | (opcode & 0x3F));
util::stream_format(stream, "JP %03x", address);
}
else //JSRP
{
address = (uint16_t)(0x80 | (opcode & 0x3F));
util::stream_format(stream, "JSRP %x", address);
util::stream_format(stream, "JSRP %03x", address);
flags = DASMFLAG_STEP_OVER;
}
}
@ -63,13 +65,13 @@ CPU_DISASSEMBLE(cop444)
else if (opcode >= 0x60 && opcode <= 0x63)
{
address = ((opcode & 0x03) << 8) | next_opcode;
util::stream_format(stream, "JMP %x", address);
util::stream_format(stream, "JMP %03x", address);
bytes = 2;
}
else if (opcode >= 0x68 && opcode <= 0x6B)
{
address = ((opcode & 0x03) << 8) | next_opcode;
util::stream_format(stream, "JSR %x", address);
util::stream_format(stream, "JSR %03x", address);
flags = DASMFLAG_STEP_OVER;
bytes = 2;
}
@ -163,12 +165,12 @@ CPU_DISASSEMBLE(cop444)
if (next_opcode <= 0x3f)
{
address = (uint16_t)(next_opcode & 0x3F);
util::stream_format(stream, "LDD %x,%x", ((address & 0x30) >> 4),address & 0x0F);
util::stream_format(stream, "LDD %u,%u", ((address & 0x30) >> 4),address & 0x0F);
}
else if (next_opcode >= 0x80 && next_opcode <= 0xbf)
{
address = (uint16_t)(next_opcode & 0x3F);
util::stream_format(stream, "XAD %x,%x", ((address & 0x30) >> 4),address & 0x0F);
util::stream_format(stream, "XAD %u,%u", ((address & 0x30) >> 4),address & 0x0F);
}
else
{