BRK instruction adjustment

* Changes from AppleWin ... set Break and Xtra for pushed flags * Late set Interrupt flag for current flags (should be unchanged)
2025-08-15 05:27:32 +00:00 · 2013-11-05 21:45:55 -08:00
parent c39bea9580
commit 1eb8f759d7
1 changed files with 2 additions and 1 deletions
--- a/src/cpu.S
+++ b/src/cpu.S
@@ -830,11 +830,12 @@ op_BRK:
                movw    PC_Reg, %ax
                Push(%ah)
                Push(%al)
+                orb     $(B_Flag|X_Flag), F_Reg
                xorl    %eax,%eax
                movb    F_Reg, %al
-                orb     $I_Flag, F_Reg
                movb    SN(cpu65_flags_encode)(,%eax,1), %al
                Push(%al)
+                orb     $I_Flag, F_Reg
                movw    $0xFFFE, EffectiveAddr
                GetFromEA_W
                movw    %ax, PC_Reg