6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2025-10-25 09:27:01 +00:00
Code Issues Projects Releases Wiki Activity

Make BSR operate like the other offsets: the flow controller gets whatever was in the opcode.

Browse Source
This commit is contained in:
Thomas Harte
2022-05-20 12:40:09 -04:00
parent 45e9648b8c
commit cb77519af8
2 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
InstructionSets/M68k/Implementation/ExecutorImplementation.hpp
View File

@@ -483,7 +483,7 @@ template <Model model, typename BusHandler>
void Executor<model, BusHandler>::State::bsr(uint32_t offset) { void Executor<model, BusHandler>::State::bsr(uint32_t offset) {
sp.l -= 4; sp.l -= 4;
write<uint32_t>(sp.l, program_counter.l); write<uint32_t>(sp.l, program_counter.l);
program_counter.l = instruction_address + offset; program_counter.l = instruction_address + offset + 2;
} }
template <Model model, typename BusHandler> template <Model model, typename BusHandler>

6
InstructionSets/M68k/Implementation/PerformImplementation.hpp
View File

@@ -268,13 +268,13 @@ template <
break; break;
case Operation::BSRb: case Operation::BSRb:
flow_controller.bsr(int8_t(src.b) + 2); flow_controller.bsr(int8_t(src.b));
break; break;
case Operation::BSRw: case Operation::BSRw:
flow_controller.bsr(int16_t(src.w) + 2); flow_controller.bsr(int16_t(src.w));
break; break;
case Operation::BSRl: case Operation::BSRl:
flow_controller.bsr(src.l + 2); flow_controller.bsr(src.l);
break; break;
case Operation::DBcc: { case Operation::DBcc: {