Opcode D6 is now an alias of opcode D7 (XLAT) on NEC Vx0, closes #5516.

2025-04-27 18:50:45 +02:00
parent f563b73768
commit 5b4db319bf
1 changed files with 7 additions and 4 deletions
--- a/src/cpu/808x.c
+++ b/src/cpu/808x.c
@@ -3438,10 +3438,13 @@ execx86(int cycs)
                    set_pzs(8);
                    break;
                case 0xD6: /*SALC*/
-                    wait(1, 0);
-                    AL = (cpu_state.flags & C_FLAG) ? 0xff : 0x00;
-                    wait(1, 0);
-                    break;
+                    if (!is_nec) {
+                        wait(1, 0);
+                        AL = (cpu_state.flags & C_FLAG) ? 0xff : 0x00;
+                        wait(1, 0);
+                        break;
+                    }
+                    fallthrough;
                case 0xD7: /*XLATB*/
                    cpu_state.eaaddr = (BX + AL) & 0xffff;
                    access(4, 8);