From 43d630a7ee663a6cff7b9258dafa29e6754c34f2 Mon Sep 17 00:00:00 2001 From: FeralChild64 Date: Sun, 20 Dec 2020 21:02:01 +0100 Subject: [PATCH] bugfix for HALT --- src/zvm_m65/z80_instr_general.s | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/zvm_m65/z80_instr_general.s b/src/zvm_m65/z80_instr_general.s index dc88a098..aca40438 100644 --- a/src/zvm_m65/z80_instr_general.s +++ b/src/zvm_m65/z80_instr_general.s @@ -43,7 +43,10 @@ Z80_instr_76: ; HALT ldx #$01 ; default BIOS function, warm start - lda REG_PC + lda REG_PC+1 + cmp #$FE + bne @1 + lda REG_PC+0 sec sbc #$64 cmp #33