From 2b323b3e5cf5f3b13a8db9d9d8479d4cd022740f Mon Sep 17 00:00:00 2001 From: AJR Date: Thu, 10 Jan 2019 11:00:04 -0500 Subject: [PATCH] 8x300: Fix IV destination masking (nw) --- src/devices/cpu/8x300/8x300.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/devices/cpu/8x300/8x300.cpp b/src/devices/cpu/8x300/8x300.cpp index 31453e3823a..bf08f3a3cdb 100644 --- a/src/devices/cpu/8x300/8x300.cpp +++ b/src/devices/cpu/8x300/8x300.cpp @@ -71,13 +71,13 @@ device_memory_interface::space_config_vector n8x300_cpu_device::memory_space_con void n8x300_cpu_device::xmit_lb(uint8_t dst, uint8_t mask) { m_IV_latch = (m_IV_latch & ~mask) | (dst & mask); - WRITEPORT(m_IVL, dst); + WRITEPORT(m_IVL, m_IV_latch); } void n8x300_cpu_device::xmit_rb(uint8_t dst, uint8_t mask) { m_IV_latch = (m_IV_latch & ~mask) | (dst & mask); - WRITEPORT(m_IVR + 0x100, dst); + WRITEPORT(m_IVR + 0x100, m_IV_latch); } void n8x300_cpu_device::set_reg(uint8_t reg, uint8_t val, bool xmit)