yeno_532xl: add note about bookrom

hash/mephisto_mm2.xml

@@ -6,7 +6,7 @@ license:CC0
 
 <softwarelist name="mephisto_mm2" description="Mephisto MM II Modules">
 
-<!-- HG 240 module is exclusively used with MM II, it is 100% identical to Conchess L16 -->
+<!-- HG 240 module works with MM II and MM III, it is 100% identical to Conchess L16 -->
 
 	<software name="hg240">
 		<description>Mephisto HG 240 Opening Library</description>

src/mame/chess/ave_arb.cpp

@@ -13,7 +13,7 @@ Auto Response Board (ARB) overview:
 - PCB label AV001C01 REV A
 
 The electronic magnetic chessboard is the first of its kind. AVE later licensed
-it to Fidelity (see fidel_elite.cpp).
+it to Fidelity (see fidelity/elite.cpp).
 ARB is a romless system, the program ROM is on a cartridge.
 
 Known chess modules (*denotes not dumped yet):

src/mame/chess/compuchess.cpp

@@ -21,7 +21,7 @@ BTANB:
 ===============================================================================
 
 DataCash Systems's CompuChess released mid-1977. One of the first chess
-computers, the first one being Fidelity Chess Challenger (fidel_cc1.cpp)
+computers, the first one being Fidelity Chess Challenger (fidelity/cc1.cpp)
 
 Hardware notes:
 - PCB label: CompuChess 1, STAID INC, REV A, 7-77
@@ -41,6 +41,7 @@ and G for "Survival".
 The game underneath CompuChess is better known as Novag's MK I, it was an
 unlicensed clone. The ROM is identical. DCS sued JS&A / Novag Industries for
 copyright infringement and somehow didn't manage to win the case.
+see: https://law.justia.com/cases/federal/district-courts/FSupp/480/1063/1531498/
 
 Unlike CompuChess, MK I was a large success, we can assume that it kickstarted
 Novag's chess computer generation. It was also distributed as "Computer Chess"

src/mame/chess/tasc.cpp

@@ -50,7 +50,7 @@ notes:
 
 TODO:
 - bootrom disable timer shouldn't be needed, real ARM has already fetched the next opcode
-- more accurate dynamic cpu clock divider (same problem as in saitek_risc2500.cpp),
+- more accurate dynamic cpu clock divider (same problem as in saitek/risc2500.cpp),
   sound pitch is correct now though
 - does the R40 version have the same clock divider value?
 

src/mame/chess/yeno_532xl.cpp

@@ -15,6 +15,10 @@ Hardware notes:
 - HD61603, 2 4*7seg LCD screens
 - TTL, piezo, 8*8+7 LEDs, button sensors
 
+The software searches for an opening book ROM in 0x4000-0x7fff, it looks like
+it's compatible with Conchess L16 / Mephisto HG240. Though the hardware does
+not have an edge connector or empty ROM socket for it.
+
 ******************************************************************************/
 
 #include "emu.h"
@@ -139,6 +143,7 @@ u8 y532xl_state::input_r()
 void y532xl_state::cb_w(u8 data)
 {
 	// d0-d7: chessboard input mux
+	// d0-d3: lcd data
 	m_cb_mux = data;
 	update_display();
 }

src/mame/layout/yeno_532xl.lay

@@ -508,7 +508,7 @@ license:CC0
 	</element>
 	<element name="text_l10a">
 		<rect><color red="0.17" green="0.15" blue="0.15" /></rect>
-		<text string="FORWARD"><color red="0.81" green="0.8" blue="0.79" /></text>
+		<text string=" FORWARD"><color red="0.81" green="0.8" blue="0.79" /></text>
 	</element>
 	<element name="text_l11">
 		<rect><color red="0.17" green="0.15" blue="0.15" /></rect>
@@ -516,7 +516,7 @@ license:CC0
 	</element>
 	<element name="text_l11a">
 		<rect><color red="0.17" green="0.15" blue="0.15" /></rect>
-		<text string="TAKE BACK"><color red="0.81" green="0.8" blue="0.79" /></text> <!-- actually 2 lines of text -->
+		<text string=" TAKE BACK"><color red="0.81" green="0.8" blue="0.79" /></text> <!-- actually 2 lines of text -->
 	</element>
 	<element name="text_l12">
 		<rect><color red="0.17" green="0.15" blue="0.15" /></rect>
@@ -541,11 +541,11 @@ license:CC0
 	</element>
 	<element name="text_l15">
 		<rect><color red="0.7" green="0.2" blue="0.05" /></rect>
-		<text string="NEW GAME"><color red="0.81" green="0.8" blue="0.79" /></text> <!-- actually 2 lines of text -->
+		<text string=" NEW GAME"><color red="0.81" green="0.8" blue="0.79" /></text> <!-- actually 2 lines of text -->
 	</element>
 	<element name="text_l15a">
 		<rect><color red="0.7" green="0.2" blue="0.05" /></rect>
-		<text string="CL. BOARD"><color red="0.81" green="0.8" blue="0.79" /></text> <!-- actually "CLEAR BOARD", 2 lines of text -->
+		<text string=" CL. BOARD"><color red="0.81" green="0.8" blue="0.79" /></text> <!-- actually "CLEAR BOARD", 2 lines of text -->
 	</element>
 	<element name="text_l16">
 		<rect><color red="0.7" green="0.2" blue="0.05" /></rect>
@@ -604,8 +604,8 @@ license:CC0
 
 		<element ref="text_l10"><bounds x="12.1" y="1" width="1" height="1.5" /></element>
 		<element ref="text_l11"><bounds x="12.1" y="11" width="1" height="1.5" /></element>
-		<element ref="text_l10a"><bounds x="8.75" y="3.5" width="5.7" height="1.5" /></element>
-		<element ref="text_l11a"><bounds x="8.75" y="13.5" width="5.7" height="1.5" /></element>
+		<element ref="text_l10a"><bounds x="8.5" y="3.5" width="6" height="1.5" /></element>
+		<element ref="text_l11a"><bounds x="8.5" y="13.5" width="6" height="1.5" /></element>
 		<element ref="text_l12"><bounds x="8.5" y="22.25" width="6" height="1.5" /></element>
 		<element ref="text_l13"><bounds x="8.5" y="31.5" width="6" height="1.5" /></element>
 		<element ref="text_l13a"><bounds x="8.5" y="33" width="6" height="1.5" /></element>
@@ -624,8 +624,8 @@ license:CC0
 
 		<element ref="text_l14"><bounds x="8.5" y="41.5" width="6" height="1.5" /></element>
 		<element ref="text_l14a"><bounds x="8.5" y="43" width="6" height="1.5" /></element>
-		<element ref="text_l15"><bounds x="8.75" y="51" width="5.7" height="1.5" /></element>
-		<element ref="text_l15a"><bounds x="8.75" y="53.5" width="5.7" height="1.5" /></element>
+		<element ref="text_l15"><bounds x="8.5" y="51" width="6" height="1.5" /></element>
+		<element ref="text_l15a"><bounds x="8.5" y="53.5" width="6" height="1.5" /></element>
 		<element ref="text_l16"><bounds x="8.5" y="62.25" width="6" height="1.5" /></element>
 		<element ref="text_l17"><bounds x="8.5" y="72.25" width="6" height="1.5" /></element>