Apple-2-Tools
/
Epple-II
mirror of https://github.com/cmosher01/Epple-II.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

improved handling of B status bit

This commit is contained in:
Christopher A. Mosher 2019-07-09 19:33:57 -04:00
parent c14603c74a
commit 25fde4d9d0
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/cpu.cpp
View File

@ -1441,7 +1441,7 @@ void CPU::addr_NMI()
case 4:
address = push();
p |= PMASK_I;
p &= ~PMASK_B; // ???
p &= ~PMASK_B;
data = p;
write();
break;
@ -1523,7 +1523,7 @@ void CPU::addr_IRQ()
case 4:
address = push();
p |= PMASK_I;
p &= ~PMASK_B; // ???
p &= ~PMASK_B;
data = p;
write();
break;
@ -1937,7 +1937,7 @@ void CPU::PHA()
void CPU::PHP()
{
this->data = p;
this->data = this->p | PMASK_B;
}
void CPU::PLA()
@ -1950,6 +1950,7 @@ void CPU::PLP()
{
this->p = this->data;
this->p |= PMASK_M;
this->p |= PMASK_B;
}
void CPU::BRK()