6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2025-01-27 06:35:04 +00:00
Code Issues Projects Releases Wiki Activity

Ensured ROMs survive in the new memory model.

Browse Source
This commit is contained in:
Thomas Harte 2016-08-15 19:56:01 -04:00
parent 38aec44d85
commit ca2dc6b6c4
1 changed files with 9 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
Machines/Commodore/Vic-20/Vic20.cpp
View File

@ -63,7 +63,7 @@ void Machine::set_memory_size(MemorySize size)
break;
}
// install the ROMs and VIC-visible memory
// install the system ROMs and VIC-visible memory
write_to_map(_processorReadMemoryMap, _userBASICMemory, 0x0000, sizeof(_userBASICMemory));
write_to_map(_processorReadMemoryMap, _screenMemory, 0x1000, sizeof(_screenMemory));
write_to_map(_processorReadMemoryMap, _colorMemory, 0x9400, sizeof(_colorMemory));
@ -74,6 +74,12 @@ void Machine::set_memory_size(MemorySize size)
write_to_map(_processorWriteMemoryMap, _userBASICMemory, 0x0000, sizeof(_userBASICMemory));
write_to_map(_processorWriteMemoryMap, _screenMemory, 0x1000, sizeof(_screenMemory));
write_to_map(_processorWriteMemoryMap, _colorMemory, 0x9400, sizeof(_colorMemory));
// install the inserted ROM if there is one
if(_rom)
{
write_to_map(_processorReadMemoryMap, _rom, _rom_address, _rom_length);
}
}
void Machine::write_to_map(uint8_t **map, uint8_t *area, uint16_t address, uint16_t length)
@ -225,12 +231,9 @@ void Machine::set_prg(const char *file_name, size_t length, const uint8_t *data)
{
_rom_address = (uint16_t)(data[0] | (data[1] << 8));
_rom_length = (uint16_t)(length - 2);
if(_rom_address >= 0x1000 && _rom_address+_rom_length < 0x2000 && _should_automatically_load_media)
{
set_typer_for_string("RUN\n");
}
if(_rom_address == 0xa000)
// install in the ROM area if this looks like a ROM; otherwise put on tape and throw into that mechanism
if(_rom_address == 0xa000 && _rom_length == 0x1000)
{
_rom = new uint8_t[length - 2];
memcpy(_rom, &data[2], length - 2);
@ -238,7 +241,6 @@ void Machine::set_prg(const char *file_name, size_t length, const uint8_t *data)
}
else
{
// if it's not a ROM then insert it as a tape
set_tape(std::shared_ptr<Storage::Tape>(new Storage::TapePRG(file_name)));
}
}