6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2025-08-10 11:25:23 +00:00
Code Issues Projects Releases Wiki Activity

Report a 1 in the stack pointer high byte when in emulation mode.

Browse Source 
It has one internally, it just wasn't previously exposed via this method.
This commit is contained in:
Thomas Harte
2022-06-22 15:55:34 -04:00
parent a72dd96dc6
commit ecfd17a259
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
Processors/65816/Implementation/65816Base.cpp
View File

@@ -14,7 +14,10 @@ uint16_t ProcessorBase::get_value_of_register(Register r) const {
switch (r) { switch (r) {
case Register::ProgramCounter: return registers_.pc; case Register::ProgramCounter: return registers_.pc;
case Register::LastOperationAddress: return last_operation_pc_; case Register::LastOperationAddress: return last_operation_pc_;
case Register::StackPointer: return registers_.s.full & (registers_.emulation_flag ? 0xff : 0xffff); case Register::StackPointer:
return
(registers_.s.full & (registers_.emulation_flag ? 0xff : 0xffff)) |
(registers_.emulation_flag ? 0x100 : 0x000);
case Register::Flags: return get_flags(); case Register::Flags: return get_flags();
case Register::A: return registers_.a.full; case Register::A: return registers_.a.full;
case Register::X: return registers_.x.full; case Register::X: return registers_.x.full;