From 53bfaabe4ccfed1626e8dba3de7a95699105cf24 Mon Sep 17 00:00:00 2001
From: Robbbert <Robbbert@users.noreply.github.com>
Date: Wed, 9 Feb 2022 16:55:31 +1100
Subject: [PATCH] by6803: prepared layout for commas

---
 src/mame/drivers/by6803.cpp | 14 ++++++++------
 src/mame/layout/by6803.lay  |  8 ++++----
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/src/mame/drivers/by6803.cpp b/src/mame/drivers/by6803.cpp
index 59710025763..6bffb0abaa5 100644
--- a/src/mame/drivers/by6803.cpp
+++ b/src/mame/drivers/by6803.cpp
@@ -7,7 +7,7 @@ Bally MPU A084-91786-AH06 (6803)
 
 First generation 6803 has 4x 7-digit displays, and a 6-digit display for the credits/balls (only
  4 digits are visible).
-Then, the 2nd generation replaced all that with 4x 7-letter alphanumeric displays lined up along
+Then, the 2nd generation replaced all that with 2x 14-letter alphanumeric displays lined up along
  the bottom of the backbox. They show scores, moving messages, and anything else that's needed.
  This also meant a more informative setup mode.
 
@@ -269,9 +269,11 @@ WRITE_LINE_MEMBER( by6803_state::pia0_ca2_w )
 {
 	if (state)
 	{
-		// comma info is available in m_pia1_a at this time.
-		m_digits[m_digit] = m_segment[0];
-		m_digits[m_digit+16] = m_segment[1];
+		for (u8 i = 0; i < 2; i++)
+		{
+			u16 t = bitswap<10>(u16(m_segment[i]), 0, 0, 7, 7, 6, 5, 4, 3, 2, 1);
+			m_digits[m_digit+i*20] = t;
+		}
 	}
 }
 
@@ -303,12 +305,12 @@ void by6803_state::pia0a_w(u8 data)
 	if ((data & 15)==14)
 	{
 		m_digit = data >> 4;
-		m_segment[0] = bitswap<8>(m_pia1_a, 0, 7, 6, 5, 4, 3, 2, 1) ^ 0x80;
+		m_segment[0] = m_pia1_a ^ 1;
 	}
 	else
 	if ((data & 15)==13)
 	{
-		m_segment[1] = bitswap<8>(m_pia1_a, 0, 7, 6, 5, 4, 3, 2, 1) ^ 0x80;
+		m_segment[1] = m_pia1_a ^ 1;
 	}
 }
 
diff --git a/src/mame/layout/by6803.lay b/src/mame/layout/by6803.lay
index 2dc42c17311..1782e7fff44 100644
--- a/src/mame/layout/by6803.lay
+++ b/src/mame/layout/by6803.lay
@@ -7,9 +7,9 @@ copyright-holders:Robbbert
 <mamelayout version="2">
 
 	<element name="digit" defstate="0">
-		<led8seg_gts1>
+		<led14segsc>
 			<color red="1.0" green="0.0" blue="0.0" />
-		</led8seg_gts1>
+		</led14segsc>
 	</element>
 
 	<group name="score">
@@ -38,13 +38,13 @@ copyright-holders:Robbbert
 		</group>
 
 		<!-- Player 3 Score -->
-		<param name="s" value="22" />
+		<param name="s" value="26" />
 		<group ref="score">
 			<bounds left="10" top="165" right="308" bottom="204" />
 		</group>
 
 		<!-- Player 4 Score -->
-		<param name="s" value="29" />
+		<param name="s" value="33" />
 		<group ref="score">
 			<bounds left="10" top="225" right="308" bottom="264" />
 		</group>