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path: root/src/devices/cpu/pps41/mm76op.cpp
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Diffstat (limited to 'src/devices/cpu/pps41/mm76op.cpp')
-rw-r--r--src/devices/cpu/pps41/mm76op.cpp21
1 files changed, 12 insertions, 9 deletions
diff --git a/src/devices/cpu/pps41/mm76op.cpp b/src/devices/cpu/pps41/mm76op.cpp
index 3c3278ebcf3..cd674ef1176 100644
--- a/src/devices/cpu/pps41/mm76op.cpp
+++ b/src/devices/cpu/pps41/mm76op.cpp
@@ -96,11 +96,12 @@ void mm76_device::op_sb()
// Bu falling or Bu == 3: SOS
if (((m_prev2_b & 0x30) == 0x30 && (m_prev_b & 0x30) != 0x30) || (m_prev_b & 0x30) == 0x30)
{
- if ((m_ram_addr & 0xf) > m_d_pins)
- logerror("SOS invalid pin %d at $%03X\n", m_ram_addr & 0xf, m_prev_pc);
+ u8 bl = m_ram_addr & 0xf;
+ if (bl > m_d_pins)
+ logerror("SOS invalid pin %d at $%03X\n", bl, m_prev_pc);
else
{
- m_d_output = (m_d_output | (1 << (m_ram_addr & 0xf))) & m_d_mask;
+ m_d_output = (m_d_output | (1 << bl)) & m_d_mask;
m_write_d(m_d_output);
}
}
@@ -124,11 +125,12 @@ void mm76_device::op_rb()
// Bu falling or Bu == 3: ROS
if (((m_prev2_b & 0x30) == 0x30 && (m_prev_b & 0x30) != 0x30) || (m_prev_b & 0x30) == 0x30)
{
- if ((m_ram_addr & 0xf) > m_d_pins)
- logerror("ROS invalid pin %d at $%03X\n", m_ram_addr & 0xf, m_prev_pc);
+ u8 bl = m_ram_addr & 0xf;
+ if (bl > m_d_pins)
+ logerror("ROS invalid pin %d at $%03X\n", bl, m_prev_pc);
else
{
- m_d_output = m_d_output & ~(1 << (m_ram_addr & 0xf));
+ m_d_output = m_d_output & ~(1 << bl);
m_write_d(m_d_output);
}
}
@@ -152,10 +154,11 @@ void mm76_device::op_skbf()
// Bu falling or Bu == 3: SKISL
if (((m_prev2_b & 0x30) == 0x30 && (m_prev_b & 0x30) != 0x30) || (m_prev_b & 0x30) == 0x30)
{
- if ((m_ram_addr & 0xf) > m_d_pins)
- logerror("SKISL invalid pin %d at $%03X\n", m_ram_addr & 0xf, m_prev_pc);
+ u8 bl = m_ram_addr & 0xf;
+ if (bl > m_d_pins)
+ logerror("SKISL invalid pin %d at $%03X\n", bl, m_prev_pc);
else
- m_skip = !BIT((m_d_output | m_read_d()) & m_d_mask, m_ram_addr & 0xf);
+ m_skip = !BIT((m_d_output | m_read_d()) & m_d_mask, bl);
}
// Bu != 3: SKBF