6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2024-11-26 08:49:37 +00:00
Code Issues Projects Releases Wiki Activity

Adds a new assert: I think this is the issue getting into GS/OS.

Browse Source
This commit is contained in:
Thomas Harte 2020-12-07 22:43:24 -05:00
parent d35def4bbc
commit c72bdd776e
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Processors/65816/Implementation/65816Implementation.hpp
View File

@ -419,6 +419,9 @@ template <typename BusHandler, bool uses_ready_line> void Processor<BusHandler,
pending_exceptions_ &= ~NMI;
data_address_ = registers_.emulation_flag ? 0xfffa : 0xffea;
} else if(pending_exceptions_ & IRQ & registers_.flags.inverse_interrupt) {
// TODO: this isn't a correct way to handle usurption, I think;
// if an IRQ was selected for servicing I think it'll now be servied
// even if the IRQ line has gone low in the interim.
pending_exceptions_ &= ~IRQ;
data_address_ = registers_.emulation_flag ? 0xfffe : 0xffee;
} else if(pending_exceptions_ & Abort) {
@ -428,6 +431,9 @@ template <typename BusHandler, bool uses_ready_line> void Processor<BusHandler,
pending_exceptions_ &= ~Abort;
data_address_ = registers_.emulation_flag ? 0xfff8 : 0xffe8;;
} else {
// Test that this really is BRK or COP.
assert((active_instruction_ == instructions) || (active_instruction_ == &instructions[0x02]));
is_brk = active_instruction_ == instructions; // Given that BRK has opcode 00.
if(is_brk) {
data_address_ = registers_.emulation_flag ? 0xfffe : 0xffe6;