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bsnes/higan/processor/m68k/memory.cpp

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Update to v100r03 release. byuu says: Changelog: - moved Thread, Scheduler, Cheat functionality into emulator/ for all cores - start of actual Mega Drive emulation (two 68K instructions) I'm going to be rather terse on MD emulation, as it's too early for any meaningful dialogue here.
2016-07-10 05:28:26 +00:00
auto M68K::readByte(uint32 addr) -> uint8 {
return read(addr);
}
auto M68K::readWord(uint32 addr) -> uint16 {
uint16 data;
data |= read(addr + 0) << 8;
data |= read(addr + 1) << 0;
return data;
}
auto M68K::readLong(uint32 addr) -> uint32 {
uint32 data;
data |= read(addr + 0) << 24;
data |= read(addr + 1) << 16;
data |= read(addr + 2) << 8;
data |= read(addr + 3) << 0;
return data;
}
auto M68K::readQuad(uint32 addr) -> uint64 {
uint64 data;
data |= (uint64)read(addr + 0) << 56;
data |= (uint64)read(addr + 1) << 48;
data |= (uint64)read(addr + 2) << 40;
data |= (uint64)read(addr + 3) << 32;
data |= (uint64)read(addr + 4) << 24;
data |= (uint64)read(addr + 5) << 16;
data |= (uint64)read(addr + 6) << 8;
data |= (uint64)read(addr + 7) << 0;
return data;
}