diff --git a/Doc/RomWBW Applications.pdf b/Doc/RomWBW Applications.pdf
index 81825a1f..84ff7afe 100644
Binary files a/Doc/RomWBW Applications.pdf and b/Doc/RomWBW Applications.pdf differ
diff --git a/Doc/RomWBW Disk Catalog.pdf b/Doc/RomWBW Disk Catalog.pdf
index bb1fc47d..e4cd8f44 100644
Binary files a/Doc/RomWBW Disk Catalog.pdf and b/Doc/RomWBW Disk Catalog.pdf differ
diff --git a/Doc/RomWBW Errata.pdf b/Doc/RomWBW Errata.pdf
index b7a78e03..61e9fedb 100644
Binary files a/Doc/RomWBW Errata.pdf and b/Doc/RomWBW Errata.pdf differ
diff --git a/Doc/RomWBW ROM Applications.pdf b/Doc/RomWBW ROM Applications.pdf
index 41a763f0..74aa7b2e 100644
Binary files a/Doc/RomWBW ROM Applications.pdf and b/Doc/RomWBW ROM Applications.pdf differ
diff --git a/Doc/RomWBW System Guide.pdf b/Doc/RomWBW System Guide.pdf
index 49a28f87..131d2fc0 100644
Binary files a/Doc/RomWBW System Guide.pdf and b/Doc/RomWBW System Guide.pdf differ
diff --git a/Doc/RomWBW User Guide.pdf b/Doc/RomWBW User Guide.pdf
index 4d969fc3..14a0b503 100644
Binary files a/Doc/RomWBW User Guide.pdf and b/Doc/RomWBW User Guide.pdf differ
diff --git a/ReadMe.md b/ReadMe.md
index 965a73cf..da3b2fcc 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -3,7 +3,7 @@
 **RomWBW ReadMe** \
 Version 3.3 \
 Wayne Warthen  ([wwarthen@gmail.com](mailto:wwarthen@gmail.com)) \
-16 Apr 2023
+02 May 2023
 
 # Overview
 
diff --git a/ReadMe.txt b/ReadMe.txt
index 9a70f421..bf49e224 100644
--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -1,6 +1,6 @@
 RomWBW ReadMe
 Wayne Warthen (wwarthen@gmail.com)
-16 Apr 2023
+02 May 2023
 
 
 
diff --git a/Source/Doc/UserGuide.md b/Source/Doc/UserGuide.md
index 9088eac6..294c7cf4 100644
--- a/Source/Doc/UserGuide.md
+++ b/Source/Doc/UserGuide.md
@@ -3923,5 +3923,6 @@ may be discovered by RomWBW in your system.
 | USB-FIFO  | Char     | FT232H-based ECB USB FIFO                              |
 | VDU       | Video    | MC6845 Family Video Display Controller                 |
 | VGA       | Video    | HD6445CP4-based Video Display Controller               |
+| VRC       | Video    | VGARC Video Display Controller                        s |
 | YM        | Audio    | YM2612 Programmable Sound Generator                    |
 | Z2U       | Char     | Zilog Z280 CPU Built-in Serial Ports                   |
diff --git a/Source/HBIOS/Config/RCZ180_ext.asm b/Source/HBIOS/Config/RCZ180_ext.asm
index b888160c..b6b178c6 100644
--- a/Source/HBIOS/Config/RCZ180_ext.asm
+++ b/Source/HBIOS/Config/RCZ180_ext.asm
@@ -30,6 +30,7 @@ CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
 ;
@@ -48,6 +49,7 @@ SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 ;
diff --git a/Source/HBIOS/Config/RCZ180_nat.asm b/Source/HBIOS/Config/RCZ180_nat.asm
index 3cead301..41282a9b 100644
--- a/Source/HBIOS/Config/RCZ180_nat.asm
+++ b/Source/HBIOS/Config/RCZ180_nat.asm
@@ -30,6 +30,7 @@ CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 MEMMGR		.SET	MM_Z180		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
 ;
@@ -48,9 +49,9 @@ SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
-;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
 AYMODE		.SET	AYMODE_RCZ180	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC]
 SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ280_ext.asm b/Source/HBIOS/Config/RCZ280_ext.asm
index e994df2e..6947aec8 100644
--- a/Source/HBIOS/Config/RCZ280_ext.asm
+++ b/Source/HBIOS/Config/RCZ280_ext.asm
@@ -31,6 +31,7 @@ INTMODE		.SET	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 MEMMGR		.SET	MM_Z2		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
 ;
@@ -47,6 +48,7 @@ SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ280_nat.asm b/Source/HBIOS/Config/RCZ280_nat.asm
index a22f9793..cb5bf87a 100644
--- a/Source/HBIOS/Config/RCZ280_nat.asm
+++ b/Source/HBIOS/Config/RCZ280_nat.asm
@@ -31,6 +31,7 @@ INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280]
 ;
@@ -47,6 +48,7 @@ SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ280_zz80mb.asm b/Source/HBIOS/Config/RCZ280_zz80mb.asm
index 0cc3f3c8..f5d2edc2 100644
--- a/Source/HBIOS/Config/RCZ280_zz80mb.asm
+++ b/Source/HBIOS/Config/RCZ280_zz80mb.asm
@@ -33,6 +33,7 @@ INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280]
 ;
@@ -53,6 +54,7 @@ SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ280_zzrc.asm b/Source/HBIOS/Config/RCZ280_zzrc.asm
index 492af9a3..f64ba6a3 100644
--- a/Source/HBIOS/Config/RCZ280_zzrc.asm
+++ b/Source/HBIOS/Config/RCZ280_zzrc.asm
@@ -33,6 +33,7 @@ INTMODE		.SET	3		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 MEMMGR		.SET	MM_Z280		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180|Z280]
 ;
@@ -61,6 +62,7 @@ SIOENABLE	.SET	TRUE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ80_easy.asm b/Source/HBIOS/Config/RCZ80_easy.asm
index b2361a17..1c558c15 100644
--- a/Source/HBIOS/Config/RCZ80_easy.asm
+++ b/Source/HBIOS/Config/RCZ80_easy.asm
@@ -34,6 +34,7 @@ CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 WDOGMODE	.SET	WDOG_EZZ80	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
 WDOGIO		.SET	$6F		; WATCHDOG REGISTER ADR
@@ -62,6 +63,7 @@ TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ80_kio.asm b/Source/HBIOS/Config/RCZ80_kio.asm
index 8194f00d..2d24669a 100644
--- a/Source/HBIOS/Config/RCZ80_kio.asm
+++ b/Source/HBIOS/Config/RCZ80_kio.asm
@@ -31,6 +31,7 @@ INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
 RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
@@ -57,6 +58,7 @@ TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ80_skz.asm b/Source/HBIOS/Config/RCZ80_skz.asm
index e3fad45e..e4a0a4d7 100644
--- a/Source/HBIOS/Config/RCZ80_skz.asm
+++ b/Source/HBIOS/Config/RCZ80_skz.asm
@@ -35,6 +35,7 @@ SKZENABLE	.SET	TRUE		; ENABLE SERGEY'S Z80-512K FEATURES
 SKZDIV		.SET	DIV_12		; UART CLK (CLK2) DIVIDER FOR Z80-512K
 WDOGMODE	.SET	WDOG_SKZ	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
 ;
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
 LEDPORT		.SET	$6E		; STATUS LED PORT ADDRESS
 ;
@@ -52,6 +53,7 @@ TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ80_std.asm b/Source/HBIOS/Config/RCZ80_std.asm
index 3d759f28..d4abee6d 100644
--- a/Source/HBIOS/Config/RCZ80_std.asm
+++ b/Source/HBIOS/Config/RCZ80_std.asm
@@ -30,6 +30,7 @@ CPUOSC		.SET	7372800		; CPU OSC FREQ IN MHZ
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
 RP5RTCENABLE	.SET	FALSE		; RP5C01 RTC BASED CLOCK (RP5RTC.ASM)
@@ -43,6 +44,7 @@ TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ80_tiny.asm b/Source/HBIOS/Config/RCZ80_tiny.asm
index 81189cb1..fee4b13b 100644
--- a/Source/HBIOS/Config/RCZ80_tiny.asm
+++ b/Source/HBIOS/Config/RCZ80_tiny.asm
@@ -34,6 +34,7 @@ CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 EIPCENABLE	.SET	TRUE		; EIPC: ENABLE Z80 EIPC (Z84C15) INITIALIZATION
 WDOGMODE	.SET	WDOG_EZZ80	; WATCHDOG MODE: WDOG_[NONE|EZZ80|SKZ]
@@ -67,6 +68,7 @@ TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ80_zrc.asm b/Source/HBIOS/Config/RCZ80_zrc.asm
index 00020ada..bd186695 100644
--- a/Source/HBIOS/Config/RCZ80_zrc.asm
+++ b/Source/HBIOS/Config/RCZ80_zrc.asm
@@ -31,6 +31,7 @@ CPUOSC		.SET	14745600	; CPU OSC FREQ IN MHZ
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 RAMSIZE		.SET	1536		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 MEMMGR		.SET	MM_ZRC		; MEMORY MANAGER: MM_[SBC|Z2|N8|Z180]
@@ -44,6 +45,7 @@ TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/RCZ80_zrc_ram.asm b/Source/HBIOS/Config/RCZ80_zrc_ram.asm
index efbc7746..0c2d14b4 100644
--- a/Source/HBIOS/Config/RCZ80_zrc_ram.asm
+++ b/Source/HBIOS/Config/RCZ80_zrc_ram.asm
@@ -32,6 +32,7 @@ CPUOSC		.SET	7372800		; CPU OSC FREQ IN MHZ
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 ;
 FPENABLE	.SET	TRUE		; ENABLES FRONT PANEL SWITCHES
+DIAGENABLE	.SET	TRUE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;
 RAMSIZE		.SET	2048		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
 ROMSIZE		.SET	0		; SIZE OF ROM IN KB (MUST MATCH YOUR HARDWARE!!!)
@@ -48,6 +49,7 @@ TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	FALSE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/SCZ180_sc126.asm b/Source/HBIOS/Config/SCZ180_sc126.asm
index 5fa11435..acf443c7 100644
--- a/Source/HBIOS/Config/SCZ180_sc126.asm
+++ b/Source/HBIOS/Config/SCZ180_sc126.asm
@@ -51,6 +51,7 @@ TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	TRUE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/SCZ180_sc130.asm b/Source/HBIOS/Config/SCZ180_sc130.asm
index 59203b42..9304ee8b 100644
--- a/Source/HBIOS/Config/SCZ180_sc130.asm
+++ b/Source/HBIOS/Config/SCZ180_sc130.asm
@@ -52,6 +52,7 @@ TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 TMSMODE		.SET	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+VRCENABLE	.SET	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 AY38910ENABLE	.SET	TRUE		; AY: AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/ansi.asm b/Source/HBIOS/ansi.asm
index a761542d..cc9c6a68 100644
--- a/Source/HBIOS/ansi.asm
+++ b/Source/HBIOS/ansi.asm
@@ -634,9 +634,10 @@ ANSI_BEL:
 ANSI_BS:
 	LD	A,(ANSI_COL)	; GET CURRENT COLUMN
 	DEC	A		; BACK IT UP BY ONE
-	RET	C		; IF CARRY, MARGIN EXCEEDED, ABORT
+	;RET	C		; IF CARRY, MARGIN EXCEEDED, ABORT
+	RET	M		; IF CARRY, MARGIN EXCEEDED, ABORT
 	LD	(ANSI_COL),A	; SAVE NEW COLUMN
-	JP	ANSI_XY		; UDPATE CUSROR AND RETURN
+	JP	ANSI_XY		; UDPATE CURSOR AND RETURN
 ;
 ANSI_CR:
 	XOR	A		; ZERO ACCUM
diff --git a/Source/HBIOS/cfg_dyno.asm b/Source/HBIOS/cfg_dyno.asm
index add2c405..11b4aec9 100644
--- a/Source/HBIOS/cfg_dyno.asm
+++ b/Source/HBIOS/cfg_dyno.asm
@@ -174,6 +174,7 @@ TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_master.asm b/Source/HBIOS/cfg_master.asm
index 88c1cb8c..70f67b1f 100644
--- a/Source/HBIOS/cfg_master.asm
+++ b/Source/HBIOS/cfg_master.asm
@@ -228,6 +228,7 @@ TMSMODE		.EQU	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|M
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
 VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_mbc.asm b/Source/HBIOS/cfg_mbc.asm
index f548495c..e9d445ed 100644
--- a/Source/HBIOS/cfg_mbc.asm
+++ b/Source/HBIOS/cfg_mbc.asm
@@ -156,6 +156,7 @@ TMSMODE		.EQU	TMSMODE_MBC	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MS
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
 VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_mk4.asm b/Source/HBIOS/cfg_mk4.asm
index 5ebf710b..9d4a2647 100644
--- a/Source/HBIOS/cfg_mk4.asm
+++ b/Source/HBIOS/cfg_mk4.asm
@@ -167,6 +167,7 @@ TMSMODE		.EQU	TMSMODE_SCG	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MS
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
 VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_n8.asm b/Source/HBIOS/cfg_n8.asm
index 93cf1206..e866beff 100644
--- a/Source/HBIOS/cfg_n8.asm
+++ b/Source/HBIOS/cfg_n8.asm
@@ -169,6 +169,7 @@ TMSMODE		.EQU	TMSMODE_N8	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSX
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
 VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_rcz180.asm b/Source/HBIOS/cfg_rcz180.asm
index 032bcd8a..f46c3b69 100644
--- a/Source/HBIOS/cfg_rcz180.asm
+++ b/Source/HBIOS/cfg_rcz180.asm
@@ -174,6 +174,7 @@ TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_rcz280.asm b/Source/HBIOS/cfg_rcz280.asm
index 1726fc6f..fba9880d 100644
--- a/Source/HBIOS/cfg_rcz280.asm
+++ b/Source/HBIOS/cfg_rcz280.asm
@@ -184,6 +184,7 @@ TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_rcz80.asm b/Source/HBIOS/cfg_rcz80.asm
index 2c937128..1f03d235 100644
--- a/Source/HBIOS/cfg_rcz80.asm
+++ b/Source/HBIOS/cfg_rcz80.asm
@@ -86,8 +86,8 @@ VDAEMU_SERKBD	.EQU	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ANSITRACE	.EQU	1		; ANSI DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
 PPKTRACE	.EQU	1		; PPK DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
 KBDTRACE	.EQU	1		; KBD DRIVER TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
 KBDKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
+PPKKBLOUT	.EQU	KBD_US		; PPK KEYBOARD LANGUAGE: KBD_[US|DE]
 MKYENABLE	.EQU	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
 MKYKBLOUT	.EQU	KBD_US		; KBD KEYBOARD LANGUAGE: KBD_[US|DE]
 ;
@@ -178,6 +178,7 @@ TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_rph.asm b/Source/HBIOS/cfg_rph.asm
index a6ddcc73..ecb505ad 100644
--- a/Source/HBIOS/cfg_rph.asm
+++ b/Source/HBIOS/cfg_rph.asm
@@ -158,6 +158,7 @@ TMSMODE		.EQU	TMSMODE_N8	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSX
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
 VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_sbc.asm b/Source/HBIOS/cfg_sbc.asm
index 00c6dff2..b9b93475 100644
--- a/Source/HBIOS/cfg_sbc.asm
+++ b/Source/HBIOS/cfg_sbc.asm
@@ -156,6 +156,7 @@ TMSMODE		.EQU	TMSMODE_SCG	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MS
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
 VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30|V80X43]
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_scz180.asm b/Source/HBIOS/cfg_scz180.asm
index f534ccd4..172462b8 100644
--- a/Source/HBIOS/cfg_scz180.asm
+++ b/Source/HBIOS/cfg_scz180.asm
@@ -174,6 +174,7 @@ TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.EQU	TMSMODE_MSX	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_z80retro.asm b/Source/HBIOS/cfg_z80retro.asm
index 4a58c255..7bb3bdea 100644
--- a/Source/HBIOS/cfg_z80retro.asm
+++ b/Source/HBIOS/cfg_z80retro.asm
@@ -158,6 +158,7 @@ TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.EQU	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_zeta.asm b/Source/HBIOS/cfg_zeta.asm
index 66099dc4..8b6d9eaa 100644
--- a/Source/HBIOS/cfg_zeta.asm
+++ b/Source/HBIOS/cfg_zeta.asm
@@ -128,6 +128,7 @@ TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.EQU	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cfg_zeta2.asm b/Source/HBIOS/cfg_zeta2.asm
index 90e104e1..4198abd1 100644
--- a/Source/HBIOS/cfg_zeta2.asm
+++ b/Source/HBIOS/cfg_zeta2.asm
@@ -139,6 +139,7 @@ TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.EQU	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 TMSTIMENABLE	.EQU	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VRCENABLE	.EQU	FALSE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK
diff --git a/Source/HBIOS/cvdu.asm b/Source/HBIOS/cvdu.asm
index b0dd0b7b..b5daa791 100644
--- a/Source/HBIOS/cvdu.asm
+++ b/Source/HBIOS/cvdu.asm
@@ -902,5 +902,6 @@ CVDU_INIT8563:
 ;==================================================================================================
 ;
 CVDU_IDAT:
+	.DB	KBDMODE_PS2	; PS/2 8242 KEYBOARD CONTROLLER
 	.DB	CVDU_KBDST
 	.DB	CVDU_KBDDATA
diff --git a/Source/HBIOS/gdc.asm b/Source/HBIOS/gdc.asm
index 8ddd7603..be5f3f2d 100644
--- a/Source/HBIOS/gdc.asm
+++ b/Source/HBIOS/gdc.asm
@@ -325,5 +325,6 @@ GDC_POS		.DW 	0	; CURRENT DISPLAY POSITION
 ;==================================================================================================
 ;
 GDC_IDAT:
+	.DB	KBDMODE_PS2	; PS/2 8242 KEYBOARD CONTROLLER
 	.DB	GDC_KBDST
 	.DB	GDC_KBDDATA
diff --git a/Source/HBIOS/hbios.asm b/Source/HBIOS/hbios.asm
index f8cdf4f4..af182d1e 100644
--- a/Source/HBIOS/hbios.asm
+++ b/Source/HBIOS/hbios.asm
@@ -3232,6 +3232,9 @@ HB_INITTBL:
 #IF (TMSENABLE)
 	.DW	TMS_INIT
 #ENDIF
+#IF (VRCENABLE)
+	.DW	VRC_INIT
+#ENDIF
 ;#IF (DSKYENABLE)
 ;	.DW	DSKY_INIT
 ;#ENDIF
@@ -6181,6 +6184,15 @@ SIZ_GDC	.EQU	$ - ORG_GDC
 		.ECHO	" bytes.\n"
 #ENDIF
 ;
+#IF (VRCENABLE)
+ORG_VRC	.EQU	$
+  #INCLUDE "vrc.asm"
+SIZ_VRC	.EQU	$ - ORG_VRC
+		.ECHO	"VRC occupies "
+		.ECHO	SIZ_VRC
+		.ECHO	" bytes.\n"
+#ENDIF
+;
 #IF (DMAENABLE)
 ORG_DMA	.EQU	$
 #INCLUDE "dma.asm"
@@ -6241,7 +6253,7 @@ SIZ_FONTS	.EQU	$ - ORG_FONTS
 		.ECHO	SIZ_FONTS
 		.ECHO	" bytes.\n"
 ;
-#IF (CVDUENABLE | VGAENABLE) | GDCENABLE | (TMSENABLE & ((TMSMODE == TMSMODE_MSXKBD) | (TMSMODE == TMSMODE_MBC)))
+#IF (CVDUENABLE | VGAENABLE | GDCENABLE | VRCENABLE | (TMSENABLE & ((TMSMODE == TMSMODE_MSXKBD) | (TMSMODE == TMSMODE_MBC))))
 ORG_KBD		.EQU	$
   #INCLUDE "kbd.asm"
 SIZ_KBD		.EQU	$ - ORG_KBD
@@ -6438,7 +6450,7 @@ SIZ_YM2612	.EQU	$ - ORG_YM2612
 ;
 ; INCLUDE LZSA2 decompression engine if required.
 ;
-#IF ((VGAENABLE | CVDUENABLE | TMSENABLE | GDCENABLE) & USELZSA2)
+#IF ((VGAENABLE | CVDUENABLE | TMSENABLE | GDCENABLE | VRCENABLE) & USELZSA2)
 #INCLUDE "unlzsa2s.asm"
 #ENDIF
 ;
@@ -7221,6 +7233,7 @@ PS_VDCVDU	.TEXT	"CVDU$"
 PS_VDGDC	.TEXT	"GDC$"
 PS_VDTMS	.TEXT	"TMS$"
 PS_VDVGA	.TEXT	"VGA$"
+PS_VDVRC	.TEXT	"VRC$"
 ;
 ; VIDEO TYPE STRINGS
 ;
diff --git a/Source/HBIOS/hbios.inc b/Source/HBIOS/hbios.inc
index ba09f728..5ba100d3 100644
--- a/Source/HBIOS/hbios.inc
+++ b/Source/HBIOS/hbios.inc
@@ -338,7 +338,7 @@ VDADEV_CVDU	.EQU	$10		; ECB COLOR VDU - MOS 8563
 VDADEV_GDC	.EQU	$20		; GRAPHICS DISPLAY CTLR - UPD7220
 VDADEV_TMS	.EQU	$30		; N8 ONBOARD VDA SUBSYSTEM - TMS 9918
 VDADEV_VGA	.EQU	$40		; ECB VGA3 - HITACHI HD6445
-;VDADEV_V9958	.EQU	$50		; V9958 VDU
+VDADEV_VRC	.EQU	$50		; VGARC
 ;
 ; SOUND DEVICE IDS
 ;
diff --git a/Source/HBIOS/kbd.asm b/Source/HBIOS/kbd.asm
index 4ae36c51..b6954c3f 100644
--- a/Source/HBIOS/kbd.asm
+++ b/Source/HBIOS/kbd.asm
@@ -14,9 +14,10 @@
 ;
 ; DRIVER DATA OFFSETS (FROM IY)
 ;
-KBD_ST		.EQU	0	; BYTE, STATUS PORT NUM (R)
+KBD_MODE	.EQU	0	; BYTE, KEYBOARD MODE (STD OR VRC)
+KBD_ST		.EQU	1	; BYTE, STATUS PORT NUM (R)
 KBD_CMD		.EQU	KBD_ST	; BYTE, CMD PORT NUM (W)
-KBD_DAT		.EQU	1	; BYTE, DATA PORT NUM (R/W)
+KBD_DAT		.EQU	2	; BYTE, DATA PORT NUM (R/W)
 ;
 ; TIMING CONSTANTS
 ;
@@ -177,6 +178,9 @@ KBD_PUTCMD:
 ; PUT A CMD BYTE FROM A TO THE KEYBOARD INTERFACE WITH TIMEOUT
 ;
 	LD	E,A			; SAVE INCOMING VALUE IN E
+	LD	A,(KBD_MODE)		; GET MODE BYTE
+	CP	KBDMODE_VRC		; VGARC KEYBOARD?
+	JR	Z,KBD_PUTCMD2		; BAIL OUT
 	LD	B,KBD_WAITTO		; SETUP TO LOOP
 KBD_PUTCMD0:
 	CALL	KBD_OST			; GET OUTPUT REGISTER STATUS
@@ -194,6 +198,7 @@ KBD_PUTCMD1:
 #ENDIF
 	LD	C,(IY+KBD_CMD)		; COMMAND PORT
 	OUT	(C),A			; WRITE IT
+KBD_PUTCMD2:
 	XOR	A			; SIGNAL SUCCESS
 	RET
 ;
@@ -203,6 +208,9 @@ KBD_PUTDATA:
 ; PUT A DATA BYTE FROM A TO THE KEYBOARD INTERFACE WITH TIMEOUT
 ;
 	LD	E,A			; SAVE INCOMING VALUE IN E
+	LD	A,(KBD_MODE)		; GET MODE BYTE
+	CP	KBDMODE_VRC		; VGARC KEYBOARD?
+	JR	Z,KBD_PUTDATA2		; BAIL OUT
 	LD	B,KBD_WAITTO		; SETUP TO LOOP
 KBD_PUTDATA0:
 	CALL	KBD_OST			; GET OUTPUT REGISTER STATUS
@@ -219,6 +227,7 @@ KBD_PUTDATA1:
 #ENDIF
 	LD	C,(IY+KBD_DAT)		; DATA PORT
 	OUT	(C),A			; WRITE IT
+KBD_PUTDATA2:
 	XOR	A			; SIGNAL SUCCESS
 	RET
 ;
diff --git a/Source/HBIOS/std.asm b/Source/HBIOS/std.asm
index aa97107a..29d985e4 100644
--- a/Source/HBIOS/std.asm
+++ b/Source/HBIOS/std.asm
@@ -257,6 +257,12 @@ DMAMODE_Z280	.EQU	3		; Z280 INTEGRATED DMA
 DMAMODE_RC	.EQU	4		; RCBUS Z80 DMA
 DMAMODE_MBC	.EQU	5		; MBC
 ;
+; KEYBOARD MODE SELECTIONS
+;
+KBDMODE_NONE	.EQU	0
+KBDMODE_PS2	.EQU	1		; PS/2 KEYBOARD CONTROLLER
+KBDMODE_VRC	.EQU	2		; VGARC KEYBOARD CONTROLLER
+;
 ; SERIAL DEVICE CONFIGURATION CONSTANTS
 ;
 SER_DATA5	.EQU	0 << 0
diff --git a/Source/HBIOS/tms.asm b/Source/HBIOS/tms.asm
index 2dcc6253..48205e5e 100644
--- a/Source/HBIOS/tms.asm
+++ b/Source/HBIOS/tms.asm
@@ -942,10 +942,10 @@ TMS_IDAT:
 	.DB	TMS_PPIX        ; PPI CONTROL PORT
 #ENDIF
 #IF ((TMSMODE == TMSMODE_MSXKBD) | (TMSMODE == TMSMODE_MBC))
+	.DB	KBDMODE_PS2	; PS/2 8242 KEYBOARD CONTROLLER
 	.DB	TMS_KBDST	; 8242 CMD/STATUS PORT
 	.DB	TMS_KBDDATA	; 8242 DATA PORT
 	.DB	0		; FILLER
-	.DB	0		; FILER
 #ENDIF
 ;
 	.DB	TMS_DATREG
diff --git a/Source/HBIOS/vga.asm b/Source/HBIOS/vga.asm
index d072711b..039a1445 100644
--- a/Source/HBIOS/vga.asm
+++ b/Source/HBIOS/vga.asm
@@ -1039,5 +1039,6 @@ REGS_VGA:
 ;==================================================================================================
 ;
 VGA_IDAT:
+	.DB	KBDMODE_PS2	; PS/2 8242 KEYBOARD CONTROLLER
 	.DB	VGA_KBDST
 	.DB	VGA_KBDDATA
diff --git a/Source/HBIOS/vrc.asm b/Source/HBIOS/vrc.asm
new file mode 100644
index 00000000..f9134547
--- /dev/null
+++ b/Source/HBIOS/vrc.asm
@@ -0,0 +1,643 @@
+;======================================================================
+;	VIDEO DRIVER FOR VGARC
+;	https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:vgarc1:vgarc1home
+;
+;	WRITTEN BY: WAYNE WARTHEN -- 5/1/2023
+;======================================================================
+;
+; TODO:
+;
+;======================================================================
+; VGARC DRIVER - CONSTANTS
+;======================================================================
+;
+VRC_BASE	.EQU	$00		; FIRST CHAR DATA PORT
+VRC_FONTBASE	.EQU	VRC_BASE + $0C	; FIRST FONT PORT
+VRC_SCROLLIO	.EQU	$F5		; SCROLL REG PORT
+;
+VRC_KBDDATA	.EQU	$F4
+VRC_KBDST	.EQU	$F5
+;
+VRC_ROWS	.EQU	48
+VRC_COLS	.EQU	64
+;
+#DEFINE USEFONT8X8
+#DEFINE	VRC_FONT FONT8X8
+;
+TERMENABLE	.SET	TRUE		; INCLUDE TERMINAL PSEUDODEVICE DRIVER
+;
+;======================================================================
+; VRC DRIVER - INITIALIZATION
+;======================================================================
+;
+VRC_INIT:
+	LD	IY,VRC_IDAT		; POINTER TO INSTANCE DATA
+;
+	CALL	NEWLINE			; FORMATTING
+	PRTS("VRC: IO=0x$")
+	LD	A,VRC_BASE
+	CALL	PRTHEXBYTE
+	CALL	VRC_PROBE		; CHECK FOR HW PRESENCE
+	JR	Z,VRC_INIT1		; CONTINUE IF HW PRESENT
+;
+	; HARDWARE NOT PRESENT
+	PRTS(" NOT PRESENT$")
+	OR	$FF			; SIGNAL FAILURE
+	RET
+;
+VRC_INIT1:
+	; DISPLAY CONSOLE DIMENSIONS
+	LD	A,VRC_COLS
+	CALL	PC_SPACE
+	CALL	PRTDECB
+	LD	A,'X'
+	CALL	COUT
+	LD	A,VRC_ROWS
+	CALL	PRTDECB
+	PRTS(" TEXT$")
+
+	; HARDWARE INITIALIZATION
+	CALL 	VRC_CRTINIT		; SETUP THE VGARC CHIP REGISTERS
+	CALL	VRC_LOADFONT		; LOAD FONT DATA FROM ROM TO VGARC STORAGE
+	CALL	VRC_VDARES		; RESET
+	;CALL	KBD_INIT		; INITIALIZE KEYBOARD DRIVER
+
+	; ADD OURSELVES TO VDA DISPATCH TABLE
+	LD	BC,VRC_FNTBL		; BC := FUNCTION TABLE ADDRESS
+	LD	DE,VRC_IDAT		; DE := VGARC INSTANCE DATA PTR
+	CALL	VDA_ADDENT		; ADD ENTRY, A := UNIT ASSIGNED
+
+	; INITIALIZE EMULATION
+	LD	C,A			; C := ASSIGNED VIDEO DEVICE NUM
+	LD	DE,VRC_FNTBL		; DE := FUNCTION TABLE ADDRESS
+	LD	HL,VRC_IDAT		; HL := VGARC INSTANCE DATA PTR
+	CALL	TERM_ATTACH		; DO IT
+
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+;======================================================================
+; VGARC DRIVER - VIDEO DISPLAY ADAPTER (VDA) FUNCTIONS
+;======================================================================
+;
+VRC_FNTBL:
+	.DW	VRC_VDAINI
+	.DW	VRC_VDAQRY
+	.DW	VRC_VDARES
+	.DW	VRC_VDADEV
+	.DW	VRC_VDASCS
+	.DW	VRC_VDASCP
+	.DW	VRC_VDASAT
+	.DW	VRC_VDASCO
+	.DW	VRC_VDAWRC
+	.DW	VRC_VDAFIL
+	.DW	VRC_VDACPY
+	.DW	VRC_VDASCR
+	.DW	KBD_STAT
+	.DW	KBD_FLUSH
+	.DW	KBD_READ
+	.DW	VRC_VDARDC
+#IF (($ - VRC_FNTBL) != (VDA_FNCNT * 2))
+	.ECHO	"*** INVALID VRC FUNCTION TABLE ***\n"
+	!!!!!
+#ENDIF
+
+VRC_VDAINI:
+	; RESET VDA
+	; CURRENTLY IGNORES VIDEO MODE AND BITMAP DATA
+	CALL	VRC_VDARES	; RESET VDA
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+VRC_VDAQRY:
+	LD	C,$00		; MODE ZERO IS ALL WE KNOW
+	LD	D,VRC_ROWS	; ROWS
+	LD	E,VRC_COLS	; COLS
+	LD	HL,0		; EXTRACTION OF CURRENT BITMAP DATA NOT SUPPORTED YET
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+VRC_VDARES:
+	XOR	A		; CLEAR ATTRIBUTES (REV VIDEO OFF)
+	LD	(VRC_ATTR),A	; SAVE IT
+	DEC	A		; INIT CUR NESTING, INIT TO HIDDEN
+	LD	(VRC_CURSOR),A	; SAVE IT
+	LD	HL,0		; ZERO THE SCROLL OFFSET
+	LD	(VRC_OFF),HL	; SAVE VALUE
+	XOR	A		; ZERO
+	LD	(VRC_LOFF),A	; SCROLL OFFSET (LINES)
+	LD	A,' '		; BLANK THE SCREEN
+	LD	DE,VRC_ROWS*VRC_COLS	; FILL ENTIRE BUFFER
+	CALL	VRC_FILL	; DO IT
+	LD	DE,0		; ROW = 0, COL = 0
+	CALL	VRC_XY		; SEND CURSOR TO TOP LEFT
+	CALL	VRC_SHOWCUR	; NOW SHOW THE CURSOR
+;
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+VRC_VDADEV:
+	LD	D,VDADEV_VRC	; D := DEVICE TYPE
+	LD	E,0		; E := PHYSICAL UNIT IS ALWAYS ZERO
+	LD	H,0		; H := 0, DRIVER HAS NO MODES
+	LD	L,VRC_BASE	; L := BASE I/O ADDRESS
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+VRC_VDASCS:
+	SYSCHKERR(ERR_NOTIMPL)	; NOT IMPLEMENTED (YET)
+	RET
+
+VRC_VDASCP:
+	CALL	VRC_XY		; SET CURSOR POSITION
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+VRC_VDASAT:
+	; INCOMING IS:  -----RUB (R=REVERSE, U=UNDERLINE, B=BLINK)
+	;
+	; ALL WE SUPPORT IS REVERSE.  MOVE BIT TO BIT 7 OF ATTR BYTE
+	LD	A,E		; GET ATTR VALUE
+	RRCA			; ROTATE TO BIT 7
+	RRCA
+	RRCA
+	AND	$80		; ENSURE ONLY BIT 7
+	LD	(VRC_ATTR),A	; SAVE IT
+	XOR	A		; SIGNAL SUCCESS
+	RET			; DONE
+
+VRC_VDASCO:
+	; INCOMING IS:  IBGRIBGR (I=INTENSITY, B=BLUE, G=GREEN, R=RED)
+	;
+	; NONE SUPPORTED, IGNORE
+	XOR	A		; SIGNAL SUCCESS
+	RET			; DONE
+
+VRC_VDAWRC:
+	LD	A,E		; CHARACTER TO WRITE GOES IN A
+	CALL	VRC_PUTCHAR	; PUT IT ON THE SCREEN
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+VRC_VDAFIL:
+	LD	A,E		; FILL CHARACTER GOES IN A
+	EX	DE,HL		; FILL LENGTH GOES IN DE
+	CALL	VRC_FILL	; DO THE FILL
+	XOR	A		; SIGNAL SUCCESS
+	RET
+
+VRC_VDACPY:
+	; LENGTH IN HL, SOURCE ROW/COL IN DE, DEST IS VRC_POS
+	; BLKCPY USES: HL=SOURCE, DE=DEST, BC=COUNT
+	PUSH	HL		; SAVE LENGTH
+	CALL	VRC_XY2IDX	; ROW/COL IN DE -> SOURCE ADR IN HL
+	POP	BC		; RECOVER LENGTH IN BC
+	LD	DE,(VRC_POS)	; PUT DEST IN DE
+	JP	VRC_BLKCPY	; DO A BLOCK COPY
+
+VRC_VDASCR:
+	LD	A,E		; LOAD E INTO A
+	OR	A		; SET FLAGS
+	RET	Z		; IF ZERO, WE ARE DONE
+	PUSH	DE		; SAVE E
+	JP	M,VRC_VDASCR1	; E IS NEGATIVE, REVERSE SCROLL
+	CALL	VRC_SCROLL	; SCROLL FORWARD ONE LINE
+	POP	DE		; RECOVER E
+	DEC	E		; DECREMENT IT
+	JR	VRC_VDASCR	; LOOP
+VRC_VDASCR1:
+	CALL	VRC_RSCROLL	; SCROLL REVERSE ONE LINE
+	POP	DE		; RECOVER E
+	INC	E		; INCREMENT IT
+	JR	VRC_VDASCR	; LOOP
+
+;----------------------------------------------------------------------
+; READ VALUE AT CURRENT VDU BUFFER POSITION
+; RETURN E = CHARACTER, B = COLOUR, C = ATTRIBUTES
+;----------------------------------------------------------------------
+
+VRC_VDARDC:
+	OR	$FF		; UNSUPPORTED FUNCTION
+	RET
+;
+;======================================================================
+; VGARC DRIVER - PRIVATE DRIVER FUNCTIONS
+;======================================================================
+;
+;
+;----------------------------------------------------------------------
+; PROBE FOR VGARC HARDWARE
+;----------------------------------------------------------------------
+;
+; ON RETURN, ZF SET INDICATES HARDWARE FOUND
+;
+VRC_PROBE:
+	LD	C,VRC_BASE
+	LD	B,0
+	LD	A,$AA
+	OUT	(C),A
+	INC	B
+	LD	A,$55
+	OUT	(C),A
+	DEC	B
+	IN	A,(C)
+	CP	$AA
+	RET	NZ
+	INC	B
+	IN	A,(C)
+	CP	$55
+	RET
+;
+;----------------------------------------------------------------------
+; CRTC DISPLAY CONTROLLER CHIP INITIALIZATION
+;----------------------------------------------------------------------
+;
+VRC_CRTINIT:
+	XOR	A			; ZERO ACCUM
+	LD	A,$80			; ACTIVATE AND ZERO HW SCROLL
+	OUT	(VRC_SCROLLIO),A	; RESET HW SCROLL
+	RET				; DONE
+;
+;----------------------------------------------------------------------
+; LOAD FONT DATA
+;----------------------------------------------------------------------
+;
+VRC_LOADFONT:
+;
+#IF USELZSA2
+	LD	(VRC_STACK),SP		; SAVE STACK
+	LD	HL,(VRC_STACK)		; AND SHIFT IT
+	LD	DE,$2000		; DOWN 4KB TO
+	OR	A			; CREATE A
+	SBC	HL,DE			; DECOMPRESSION BUFFER
+	LD	SP,HL			; HL POINTS TO BUFFER
+	EX	DE,HL			; START OF STACK BUFFER
+	PUSH	DE			; SAVE IT
+	LD	HL,VRC_FONT		; START OF FONT DATA
+	CALL	DLZSA2			; DECOMPRESS TO DE
+	POP	HL			; RECALL STACK BUFFER POSITION
+#ELSE
+	LD	HL,VRC_FONT		; START OF FONT DATA
+#ENDIF
+;
+	LD	DE,0+(128*8)-1		; LENGTH OF FONT DATA - 1
+	ADD	HL,DE			; ADD TO HL
+;	LD	HL,ENDFONT-1
+	LD	BC,VRC_FONTBASE+3	; WORK BACKWARDS
+	OTDR				; DO 4 PAGES
+	DEC	C
+	OTDR
+	DEC	C
+	OTDR
+	DEC	C
+	OTDR
+	DEC	C
+;
+#IF USELZSA2
+	LD	HL,(VRC_STACK)		; ERASE DECOMPRESS BUFFER
+	LD	SP,HL			; BY RESTORING THE STACK
+	RET				; DONE
+VRC_STACK	.DW	0
+#ELSE
+	RET
+#ENDIF
+;
+;----------------------------------------------------------------------
+; SET CURSOR POSITION TO ROW IN D AND COLUMN IN E
+;----------------------------------------------------------------------
+;
+VRC_XY:
+	PUSH	DE			; SAVE NEW POSITION FOR NOW
+	CALL	VRC_HIDECUR		; HIDE THE CURSOR
+	POP	DE			; RECOVER INCOMING ROW/COL
+	CALL	VRC_XY2IDX		; CONVERT ROW/COL TO BUF IDX
+	LD	(VRC_POS),HL		; SAVE THE RESULT (DISPLAY POSITION)
+	JP	VRC_SHOWCUR		; SHOW THE CURSOR AND EXIT
+;
+;----------------------------------------------------------------------
+; CONVERT XY COORDINATES IN DE INTO LINEAR INDEX IN HL
+; D=ROW, E=COL
+;----------------------------------------------------------------------
+;
+VRC_XY2IDX:
+	LD	A,E			; SAVE COLUMN NUMBER IN A
+	LD	H,D			; SET H TO ROW NUMBER
+	LD	E,VRC_COLS		; SET E TO ROW LENGTH
+	CALL	MULT8			; MULTIPLY TO GET ROW OFFSET, H * E = HL, E=0, B=0
+	LD	E,A			; GET COLUMN BACK
+	ADD	HL,DE			; ADD IT IN
+
+	LD	DE,(VRC_OFF)		; SCREEN OFFSET
+	ADD	HL,DE			; ADJUST
+;
+	PUSH	HL			; SAVE IT
+	LD	DE,VRC_ROWS * VRC_COLS	; DE := BUF SIZE
+	OR	A			; CLEAR CARRY
+	SBC	HL,DE			; SUBTRACT FROM HL
+	JR	C,VRC_XY2IDX1		; BYPASS IF NO WRAP
+	POP	DE			; THROW AWAY TOS
+	RET				; DONE
+VRC_XY2IDX1:
+	POP	HL			; NO WRAP, RESTORE
+	RET				; RETURN
+;
+;----------------------------------------------------------------------
+; SHOW OR HIDE CURSOR
+;----------------------------------------------------------------------
+;
+; VGARC USES HIGH BIT OF CHAR VALUE FOR INVERSE VIDEO.  WE HAVE NO
+; HARDWARE CURSOR, SO WE LEVERAGE THE INVERSE VIDEO TO SHOW A CURSOR.
+; SINCE ANY OPERATION THAT POTENTIALLY OVERWERITES THE CURSOR POSITION
+; COULD DESTROY THE CURSOR, WE HAVE A COUPLE FUNCTIONS TO SHOW AND
+; HIDE THE CURSOR.  A VARIABLE IS USED TO TRACK THE SHOW/HIDE
+; OPERATIONS BECAUSE WE MAY HAVE NESTED CALLS.  ZERO MEANS SHOW
+; REAL CURSOR.  ANY VALUE LESS THAN ZERO MEANS HIDDEN.
+;
+VRC_SHOWCUR:
+	LD	A,(VRC_CURSOR)		; GET CURRENT NESTING VALUE
+	INC	A			; INCREMENT TO SHOW
+	LD	(VRC_CURSOR),A		; SAVE IT
+	RET	NZ			; ALREADY SHOWN, NOTHING TO DO
+;
+	; WE TRANSITIONED FROM NON-ZERO TO ZERO.  NEED TO ACTUALLY
+	; SHOW THE CURSOR NOW.
+;
+	JR	VRC_FLIPCUR
+;
+VRC_HIDECUR:
+	LD	A,(VRC_CURSOR)		; GET CURRENT NESTING VALUE
+	DEC	A			; DECREMENT TO HIDE
+	LD	(VRC_CURSOR),A		; SAVE IT
+	INC	A			; BACK TO ORIGINAL VALUE
+	RET	NZ			; ALREADY HIDDEN, NOTHING TO DO
+;
+	; WE TRANSITIONED FROM ZERO TO NEGATIVE.  NEED TO ACTUALLY
+	; HIDE THE CURSOR NOW.  SINCE SHOWING AND HIDING ARE THE
+	; SAME OPERATION (FLIP REV VID BIT), WE REUSE CODE ABOVE.
+;
+	JR	VRC_FLIPCUR
+;
+VRC_FLIPCUR:
+	; SHOWING OR HIDING THE CURSOR IS THE SAME OPERATION.
+	; SO WE USE COMMON CODE TO FLIP THE REV VID BIT.
+	LD	HL,(VRC_POS)		; CURSOR POSITION
+	LD	B,L			; INVERT FOR I/O
+	LD	C,H
+	IN	A,(C)			; GET VALUE
+	XOR	$80			; FLIP REV VID BIT
+	OUT	(C),A			; WRITE NEW VALUE
+	RET
+;
+;----------------------------------------------------------------------
+; WRITE VALUE IN A TO CURRENT VDU BUFFER POSITION, ADVANCE CURSOR
+;----------------------------------------------------------------------
+;
+VRC_PUTCHAR:
+	; WRITE CHAR AT CURRENT CURSOR POSITION.  SINCE THE CURSOR
+	; IS JUST THE HIGH BIT (REV VIDEO), WE FIRST TURN OFF THE
+	; CURSOR, WRITE THE CHAR, UPDATE THE CURSOR POSITION, AND
+	; FINALLY TURN THE CURSOR BACK ON AT THE NEW POSITION.
+;
+	PUSH	AF			; SAVE INCOMING CHAR
+	CALL	VRC_HIDECUR		; HIDE CURSOR
+	POP	AF
+	LD	HL,(VRC_POS)		; GET CUR BUF POSITION
+	LD	B,L			; INVERT FOR I/O
+	LD	C,H
+	AND	$7F			; SUPPRESS ATTRIBUTE (HI BIT)
+	LD	L,A			; PUT VALUE IN L
+	LD	A,(VRC_ATTR)		; GET CURRENT ATTRIBUTE
+	OR	L			; COMBINE WITH CHAR VALUE
+	OUT	(C),A			; WRITE VALUE TO BUFFER
+;
+	; SET CURSOR AT NEW POSITION
+	LD	HL,(VRC_POS)		; GET CURRENT BUF OFFSET
+	INC	HL			; INCREMENT
+	PUSH	HL			; SAVE IT
+	LD	DE,VRC_ROWS * VRC_COLS	; DE := BUF SIZE
+	OR	A			; CLEAR CARRY
+	SBC	HL,DE			; SUBTRACT FROM HL
+	JR	C,VRC_PUTCHAR1		; BYPASS IF NO WRAP
+	POP	DE			; THROW AWAY TOS
+	LD	HL,0			; BACK TO START
+	JR	VRC_PUTCHAR2		; CONTINUE
+VRC_PUTCHAR1:
+	POP	HL			; NO WRAP, RESTORE
+VRC_PUTCHAR2:
+	LD	(VRC_POS),HL		; SAVE NEW POSITION
+	JP	VRC_SHOWCUR		; SHOW IT AND RETURN
+;
+;----------------------------------------------------------------------
+; FILL AREA IN BUFFER WITH SPECIFIED CHARACTER AND CURRENT COLOR/ATTRIBUTE
+; STARTING AT THE CURRENT FRAME BUFFER POSITION
+;   A: FILL CHARACTER
+;   DE: NUMBER OF CHARACTERS TO FILL
+;----------------------------------------------------------------------
+;
+VRC_FILL:
+	LD	(VRC_FILL1+1),A		; SAVE FILL CHAR
+	PUSH	DE			; SAVE INCOMING DE
+	CALL	VRC_HIDECUR		; HIDE CURSOR
+	POP	DE			; RESTORE INCOMING DE
+	LD	HL,(VRC_POS)		; STARTING POSITION
+;
+VRC_FILL1:
+	LD	A,$FF			; FILL CHAR
+	LD	B,L			; INVERT FOR I/O
+	LD	C,H
+	OUT	(C),A			; PUT CHAR TO BUF
+;
+	DEC	DE			; DECREMENT COUNT
+	LD	A,D			; TEST FOR ZERO
+	OR	E
+	JP	Z,VRC_SHOWCUR		; EXIT VIA SHOW CURSOR IF DONE
+;
+	INC	HL			; INCREMENT
+	PUSH	HL			; SAVE IT
+	LD	BC,VRC_ROWS * VRC_COLS	; BC := BUF SIZE
+	OR	A			; CLEAR CARRY
+	SBC	HL,BC			; SUBTRACT FROM HL
+	JR	C,VRC_FILL2		; BYPASS IF NO WRAP
+	POP	BC			; THROW AWAY TOS
+	LD	HL,0			; BACK TO START
+	JR	VRC_FILL3		; CONTINUE
+VRC_FILL2:
+	POP	HL			; NO WRAP, RESTORE
+VRC_FILL3:
+	LD	(VRC_POS),HL		; SAVE NEW POSITION
+	JR	VRC_FILL1		; LOOP TILL DONE
+;
+;----------------------------------------------------------------------
+; SCROLL ENTIRE SCREEN FORWARD BY ONE LINE (CURSOR POSITION UNCHANGED)
+;----------------------------------------------------------------------
+;
+VRC_SCROLL:
+	; SCROLL DOWN 1 LINE VIA HARDWARE
+	CALL	VRC_HIDECUR		; SUPPRESS CURSOR
+	LD	A,(VRC_LOFF)		; GET LINE OFFSET
+	INC	A			; BUMP
+	CP	VRC_ROWS		; OVERFLOW?
+	JR	C,VRC_SCROLL1		; IF NOT, SKIP
+	XOR	A			; ELSE, BACK TO ZERO
+VRC_SCROLL1:
+	LD	(VRC_LOFF),A		; SAVE NEW VALUE
+	OR	$80			; SET HW SCROLL ENABLE BIT
+	OUT	(VRC_SCROLLIO),A	; DO IT
+;
+	; ADJUST BUFFER OFFSET
+	LD	HL,(VRC_OFF)		; BUFFER OFFSET
+	LD	DE,VRC_COLS		; COLUMNS
+	ADD	HL,DE			; ADD TO GET NEW OFFSET
+	PUSH	HL			; SAVE IT
+	LD	DE,VRC_ROWS * VRC_COLS	; DE := BUF SIZE
+	OR	A			; CLEAR CARRY
+	SBC	HL,DE			; SUBTRACT FROM HL
+	JR	C,VRC_SCROLL2		; BYPASS IF NO WRAP
+	POP	DE			; BURN TOS
+	JR	VRC_SCROLL3		; CONTINUE
+VRC_SCROLL2:
+	POP	HL			; NO WRAP, RESTORE HL
+VRC_SCROLL3:
+	LD	(VRC_OFF),HL		; SAVE NEW OFFSET
+;
+	; FILL EXPOSED LINE
+	LD	HL,(VRC_POS)		; GET CURSOR POS
+	PUSH	HL			; SAVE IT
+	LD	D,VRC_ROWS - 1		; LAST ROW
+	LD	E,0			; FIRST COLUMN
+	CALL	VRC_XY2IDX		; HL = START OF LAST LINE
+	LD	(VRC_POS),HL		; SET FILL POSITION
+	LD	A,' '			; FILL WITH BLANKS
+	LD	DE,VRC_COLS		; FILL ONE LINE
+	CALL	VRC_FILL		; FILL LAST LINE
+	POP	HL			; RECOVER CURSOR POS
+	LD	(VRC_POS),HL		; PUT VALUE BACK
+;
+	; ADJUST CURSOR POSITION 
+	LD	HL,(VRC_POS)		; CURSOR POSITION
+	LD	DE,VRC_COLS		; COLUMNS
+	ADD	HL,DE			; NEW CURSOR POS
+	PUSH	HL			; SAVE IT
+	LD	DE,VRC_ROWS * VRC_COLS	; DE := DISPLAY SIZE
+	OR	A			; CLEAR CARRY
+	SBC	HL,DE			; SUBTRACT FROM HL
+	JR	C,VRC_SCROLL4		; BYPASS IF NO WRAP
+	POP	DE			; BURN TOS
+	JR	VRC_SCROLL5		; CONTINUE
+VRC_SCROLL4:
+	POP	HL			; NO WRAP, RESTORE HL
+VRC_SCROLL5:
+	LD	(VRC_POS),HL		; SAVE NEW CURSOR POS
+	JP	VRC_SHOWCUR		; EXIT VIA SHOW CURSOR
+;
+;----------------------------------------------------------------------
+; REVERSE SCROLL ENTIRE SCREEN BY ONE LINE (CURSOR POSITION UNCHANGED)
+;----------------------------------------------------------------------
+;
+VRC_RSCROLL:
+	; SCROLL UP 1 LINE VIA HARDWARE
+	CALL	VRC_HIDECUR		; SUPPRESS CURSOR
+	LD	A,(VRC_LOFF)		; GET LINE OFFSET
+	DEC	A			; BUMP
+	CP	$FF			; OVERFLOW?
+	JR	NZ,VRC_RSCROLL1		; IF NOT, SKIP
+	LD	A,VRC_ROWS - 1		; ELSE, BACK TO LAST ROW
+VRC_RSCROLL1:
+	LD	(VRC_LOFF),A		; SAVE NEW VALUE
+	OR	$80			; SET HW SCROLL ENABLE BIT
+	OUT	(VRC_SCROLLIO),A	; DO IT
+;
+	; ADJUST BUFFER OFFSET
+	LD	HL,(VRC_OFF)		; BUFFER OFFSET
+	LD	DE,VRC_COLS		; COLUMNS
+	OR	A			; CLEAR CARRY
+	SBC	HL,DE			; SUBTRACT TO GET NEW OFFSET
+	PUSH	HL			; SAVE IT
+	JR	NC,VRC_RSCROLL2		; BYPASS IF NO WRAP
+	LD	DE,VRC_ROWS * VRC_COLS	; DISPLAY SIZE
+	ADD	HL,DE			; HANDLE WRAP
+	POP	DE			; BURN TOS
+	JR	VRC_RSCROLL3		; CONTINUE
+VRC_RSCROLL2:
+	POP	HL			; NO WRAP, RESTORE HL
+VRC_RSCROLL3:
+	LD	(VRC_OFF),HL		; SAVE NEW OFFSET
+;
+	; FILL EXPOSED LINE
+	LD	HL,(VRC_POS)		; GET CURSOR POS
+	PUSH	HL			; SAVE IT
+	LD	D,0			; FIRST ROW
+	LD	E,0			; FIRST COLUMN
+	CALL	VRC_XY2IDX		; HL = START OF FIRST LINE
+	LD	(VRC_POS),HL		; SET FILL POSITION
+	LD	A,' '			; FILL WITH BLANKS
+	LD	DE,VRC_COLS		; FILL ONE LINE
+	CALL	VRC_FILL		; FILL FIRST LINE
+	POP	HL			; RECOVER CURSOR POS
+	LD	(VRC_POS),HL		; PUT VALUE BACK
+;
+	; ADJUST CURSOR POSITION 
+	LD	HL,(VRC_POS)		; CURSOR POSITION
+	LD	DE,VRC_COLS		; COLUMNS
+	OR	A			; CLEAR CARRY
+	SBC	HL,DE			; NEW CURSOR POS
+	PUSH	HL			; SAVE IT
+	JR	NC,VRC_RSCROLL4		; BYPASS IF NO WRAP
+	LD	DE,VRC_ROWS * VRC_COLS	; DISPLAY SIZE
+	ADD	HL,DE			; HANDLE WRAP
+	POP	DE			; BURN TOS
+	JR	VRC_RSCROLL5		; CONTINUE
+VRC_RSCROLL4:
+	POP	HL			; NO WRAP, RESTORE HL
+VRC_RSCROLL5:
+	LD	(VRC_POS),HL		; SAVE NEW CURSOR POS
+	JP	VRC_SHOWCUR		; EXIT VIA SHOW CURSOR
+;
+;----------------------------------------------------------------------
+; BLOCK COPY BC BYTES FROM HL TO DE
+;----------------------------------------------------------------------
+;
+VRC_BLKCPY:
+	PUSH	BC
+	PUSH	HL
+	CALL	VRC_HIDECUR
+	POP	HL
+	POP	BC
+;
+VRC_BLKCPY1:
+	LD	A,B
+	OR	C
+	JP	Z,VRC_SHOWCUR		; EXIT VIA SHOW CURSOR
+;
+	PUSH	BC			; SAVE LOOP CTL
+	LD	B,L			; INVERT FOR I/O
+	LD	C,H
+	IN	A,(C)			; GET SOURCE CHAR
+	LD	B,E			; INVERT FOR I/O
+	LD	C,D
+	OUT	(C),A			; WRITE DEST CHAR
+	POP	BC			; RESTORE LOOP CTL
+;
+	INC	HL			; NEXT SRC CHAR
+	INC	DE			; NEXT DEST CHAR
+	DEC	BC			; DEC COUNT
+	JR	VRC_BLKCPY1		; LOOP TILL DONE
+;
+;==================================================================================================
+;   VGARC DRIVER - DATA
+;==================================================================================================
+;
+VRC_ATTR	.DB	0	; CURRENT COLOR
+VRC_POS		.DW 	0	; CURRENT DISPLAY POSITION
+VRC_OFF		.DW	0	; SCREEN START OFFSET INTO DISP BUF
+VRC_LOFF	.DB	0	; LINE OFFSET INTO DISP BUF
+VRC_CURSOR	.DB	0	; CURSOR NESTING LEVEL
+;
+;==================================================================================================
+;   VGA DRIVER - INSTANCE DATA
+;==================================================================================================
+;
+VRC_IDAT:
+	.DB	KBDMODE_VRC	; VGARC KEYBOARD CONTROLLER
+	.DB	VRC_KBDST
+	.DB	VRC_KBDDATA
diff --git a/Source/ver.inc b/Source/ver.inc
index e90eda31..a8d14463 100644
--- a/Source/ver.inc
+++ b/Source/ver.inc
@@ -2,7 +2,7 @@
 #DEFINE	RMN	3
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.3.0-dev.7"
+#DEFINE BIOSVER	"3.3.0-dev.8"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP
diff --git a/Source/ver.lib b/Source/ver.lib
index 96dcd00e..e3963be0 100644
--- a/Source/ver.lib
+++ b/Source/ver.lib
@@ -3,5 +3,5 @@ rmn	equ	3
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.3.0-dev.7"
+	db	"3.3.0-dev.8"
 	endm