diff --git a/artwork/chess/README.md b/artwork/chess/README.md
index ea838be4ac2..b61aa2d2dd1 100644
--- a/artwork/chess/README.md
+++ b/artwork/chess/README.md
@@ -2,4 +2,4 @@
 
 Place chesspieces for use with internal artwork here, each SVG is expected to be square with transparent background. They are used with sensorboard device chesspieces simulation, as well as button labels in some cases.
 
-The ones that are included in MAME by default are licensed under the [BSD-3-Clause](http://opensource.org/licenses/BSD-3-Clause). Copyright Colin M.L. Burnett, with contributions from other Wikipedia users. Revision 13 December 2021.
\ No newline at end of file
+The ones that are included in MAME by default are licensed under the [BSD-3-Clause](http://opensource.org/licenses/BSD-3-Clause). Copyright Colin M.L. Burnett, with contributions from other Wikipedia users. Revision 28 July 2022.
\ No newline at end of file
diff --git a/artwork/chess/wb.svg b/artwork/chess/wb.svg
index e9f1093e4e4..3a8eaa28623 100644
--- a/artwork/chess/wb.svg
+++ b/artwork/chess/wb.svg
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="45" height="45">
-  <g style="opacity:1; fill:none; fill-rule:evenodd; fill-opacity:1; stroke:#000000; stroke-width:1.5; stroke-linecap:round; stroke-linejoin:round; stroke-miterlimit:4; stroke-dasharray:none; stroke-opacity:1;" transform="translate(0,0.6)">>
+  <g style="opacity:1; fill:none; fill-rule:evenodd; fill-opacity:1; stroke:#000000; stroke-width:1.5; stroke-linecap:round; stroke-linejoin:round; stroke-miterlimit:4; stroke-dasharray:none; stroke-opacity:1;" transform="translate(0,0.6)">
     <g style="fill:#ffffff; stroke:#000000; stroke-linecap:butt;">
       <path d="M 9,36 C 12.39,35.03 19.11,36.43 22.5,34 C 25.89,36.43 32.61,35.03 36,36 C 36,36 37.65,36.54 39,38 C 38.32,38.97 37.35,38.99 36,38.5 C 32.61,37.53 25.89,38.96 22.5,37.5 C 19.11,38.96 12.39,37.53 9,38.5 C 7.65,38.99 6.68,38.97 6,38 C 7.35,36.54 9,36 9,36 z"/>
       <path d="M 15,32 C 17.5,34.5 27.5,34.5 30,32 C 30.5,30.5 30,30 30,30 C 30,27.5 27.5,26 27.5,26 C 33,24.5 33.5,14.5 22.5,10.5 C 11.5,14.5 12,24.5 17.5,26 C 17.5,26 15,27.5 15,30 C 15,30 14.5,30.5 15,32 z"/>
diff --git a/src/devices/cpu/tms1000/tms2100.cpp b/src/devices/cpu/tms1000/tms2100.cpp
index 9ea9bd596a3..b469e7c7b08 100644
--- a/src/devices/cpu/tms1000/tms2100.cpp
+++ b/src/devices/cpu/tms1000/tms2100.cpp
@@ -256,6 +256,7 @@ void tms2100_cpu_device::interrupt()
 
 	// insert CALL to 0
 	m_opcode = 0xc0;
+	m_c4 = 0;
 	m_fixed = m_fixed_decode[m_opcode];
 	m_micro = m_micro_decode[m_opcode];
 
diff --git a/src/devices/machine/ds1207.cpp b/src/devices/machine/ds1207.cpp
index 49a361b68b1..ce9be220fc8 100644
--- a/src/devices/machine/ds1207.cpp
+++ b/src/devices/machine/ds1207.cpp
@@ -105,7 +105,7 @@ void ds1207_device::nvram_default()
 	m_device_state = 0;
 
 	int expected_bytes = sizeof(m_unique_pattern) + sizeof(m_identification) + sizeof(m_security_match) + sizeof(m_secure_memory)
-	                     + sizeof(m_days_left) + sizeof(m_start_time) + sizeof(m_device_state);;
+	                     + sizeof(m_days_left) + sizeof(m_start_time) + sizeof(m_device_state);
 
 	if(!m_region.found())
 	{