From 91f5b36fbc683305c1da518cfd876ea25a0585ae Mon Sep 17 00:00:00 2001
From: Wayne Warthen <wwarthen@gmail.com>
Date: Wed, 7 Feb 2024 19:15:46 -0800
Subject: [PATCH] Support for EF9345 Video Display Controller

- Thanks and credit to Laszlo Szolnoki for contributing this driver.
---
 Doc/ChangeLog.txt                        |    1 +
 Doc/RomWBW Applications.pdf              |  Bin 239632 -> 239632 bytes
 Doc/RomWBW Disk Catalog.pdf              |  Bin 123540 -> 123540 bytes
 Doc/RomWBW Errata.pdf                    |  Bin 28721 -> 28721 bytes
 Doc/RomWBW ROM Applications.pdf          |  Bin 155018 -> 155018 bytes
 Doc/RomWBW System Guide.pdf              |  Bin 567579 -> 567579 bytes
 Doc/RomWBW User Guide.pdf                |  Bin 777778 -> 777821 bytes
 Source/Doc/UserGuide.md                  |    1 +
 Source/HBIOS/Config/RCZ180_ext.asm       |    1 +
 Source/HBIOS/Config/RCZ180_nat.asm       |    1 +
 Source/HBIOS/Config/RCZ180_z1rcc.asm     |    1 +
 Source/HBIOS/Config/RCZ280_ext.asm       |    1 +
 Source/HBIOS/Config/RCZ280_nat.asm       |    1 +
 Source/HBIOS/Config/RCZ280_zz80mb.asm    |    1 +
 Source/HBIOS/Config/RCZ280_zzrcc.asm     |    1 +
 Source/HBIOS/Config/RCZ280_zzrcc_ram.asm |    1 +
 Source/HBIOS/Config/RCZ80_easy.asm       |    1 +
 Source/HBIOS/Config/RCZ80_jbl.asm        |    1 +
 Source/HBIOS/Config/RCZ80_kio.asm        |    1 +
 Source/HBIOS/Config/RCZ80_skz.asm        |    1 +
 Source/HBIOS/Config/RCZ80_std.asm        |    1 +
 Source/HBIOS/Config/RCZ80_tiny.asm       |    1 +
 Source/HBIOS/Config/RCZ80_zrc.asm        |    1 +
 Source/HBIOS/Config/RCZ80_zrc512.asm     |    1 +
 Source/HBIOS/Config/RCZ80_zrc_ram.asm    |    1 +
 Source/HBIOS/Config/SCZ180_sc126.asm     |    1 +
 Source/HBIOS/Config/SCZ180_sc130.asm     |    1 +
 Source/HBIOS/Config/SCZ180_sc700.asm     |    1 +
 Source/HBIOS/cfg_duo.asm                 |    1 +
 Source/HBIOS/cfg_dyno.asm                |    1 +
 Source/HBIOS/cfg_epitx.asm               |    1 +
 Source/HBIOS/cfg_heath.asm               |    1 +
 Source/HBIOS/cfg_master.asm              |    1 +
 Source/HBIOS/cfg_mbc.asm                 |    1 +
 Source/HBIOS/cfg_mk4.asm                 |    1 +
 Source/HBIOS/cfg_mon.asm                 |    1 +
 Source/HBIOS/cfg_n8.asm                  |    1 +
 Source/HBIOS/cfg_rcz180.asm              |    1 +
 Source/HBIOS/cfg_rcz280.asm              |    1 +
 Source/HBIOS/cfg_rcz80.asm               |    1 +
 Source/HBIOS/cfg_rph.asm                 |    1 +
 Source/HBIOS/cfg_s100.asm                |    1 +
 Source/HBIOS/cfg_sbc.asm                 |    1 +
 Source/HBIOS/cfg_scz180.asm              |    1 +
 Source/HBIOS/cfg_z80retro.asm            |    1 +
 Source/HBIOS/cfg_zeta.asm                |    1 +
 Source/HBIOS/cfg_zeta2.asm               |    1 +
 Source/HBIOS/ef.asm                      | 1083 ++++++++++++++++++++++
 Source/HBIOS/hbios.asm                   |   12 +
 Source/HBIOS/hbios.inc                   |    2 +
 Source/HBIOS/std.asm                     |    3 +-
 Source/ver.inc                           |    2 +-
 Source/ver.lib                           |    2 +-
 53 files changed, 1142 insertions(+), 3 deletions(-)
 create mode 100644 Source/HBIOS/ef.asm

diff --git a/Doc/ChangeLog.txt b/Doc/ChangeLog.txt
index 85e1400e..7ecfa285 100644
--- a/Doc/ChangeLog.txt
+++ b/Doc/ChangeLog.txt
@@ -8,6 +8,7 @@ Version 3.5
 - WBW: Add API to expose application banks available
 - WBW: Added console takeover at boot loader prompt
 - L?N: Fixed Propeller font vertical line character to align properly
+- L?S: EF9345 video display controller driver
 
 Version 3.4
 -----------
diff --git a/Doc/RomWBW Applications.pdf b/Doc/RomWBW Applications.pdf
index b38b3c407409e47157aa8f115092c9265598104f..06ed5b7916a78b3eaa828a9cfa649c3dc7da74cd 100644
GIT binary patch
delta 136
zcmbPmfp5YEzJ?aY7N#xC<@v0Z28PDw(`)jX<si)M^YfVnEE0`P3`|{}oy;r^+{_IP
zjh)=g&0S0!UCk_<ER2mDO<e61YzQlfRj{+;DlSPZDyb++P2(~$GBvWW;8Im}^>^a}
E0Pu1n3IG5A

delta 136
zcmbPmfp5YEzJ?aY7N#xC<@v0}1|~)((`)jX<si)M^YfVnED~MJj9d&I4V;}^osHd`
zOf6lU4P0G~9bH@u4P4Az4b1EmYzQlfRj{+;DlSPZDyb++P2(~$GBvWW;8Im}^>^a}
E0228ljsO4v

diff --git a/Doc/RomWBW Disk Catalog.pdf b/Doc/RomWBW Disk Catalog.pdf
index b3431d604e5e44c0c70796e041b6a3418619fb0b..abeef0909344235f23c40125f2faa2420c8d102c 100644
GIT binary patch
delta 107
zcmbPolzqxk_J%EtlP|DZ8W@_IOrLRqQ4Ye~zWV}Wg`l&Ai>0%Rvzw)nk&&CJtGS7x
erMat-g{zs9i?gw-tFeKdf(;=h)5{()$^ii5B_1RI

delta 107
zcmbPolzqxk_J%EtlP|Cu8<?0FPM>jsQ4Ye~zWV}Wg`l&mrL&u{v4yFbo3opfp^K}r
ei<z;Dg`113iGhKmiHn7uf(;=h)5{()$^ii8P98=8

diff --git a/Doc/RomWBW Errata.pdf b/Doc/RomWBW Errata.pdf
index 260c131a00be437e34cf2a7a83ed1698a646be01..2fbfbd0e4538f41229fd13650e86f78e235ad9a5 100644
GIT binary patch
delta 134
zcmdn^fN|pk#tnC~SS<~V3=AiqXBOu%G66Ep4Z#ANS+mcuB$zoG8k@KoySSK`8JoJ8
zxj37;8Jd|HyI43|x*C|dIoT=L5LObaU}wiwT#{H+Qc;we#${w~YGA~rs_N?R#svWC
C)gvYV

delta 134
zcmdn^fN|pk#tnC~Sd9%#Oe`m#XBOu%GBGeRFgFAXY-Y_q!;)ZVWMph&WN2pO;%wpK
zWZ~jw=;&tXY+~qQYG7(;;OJ(jU_)3*tb&~#S8+*VQAtHnY8sc3xv7B>m#V6(zZ(|-
D*Ha?S

diff --git a/Doc/RomWBW ROM Applications.pdf b/Doc/RomWBW ROM Applications.pdf
index 2d311f8749df68821383b4baf6c1d9316c77c6dd..a94bdee89d254cd43277c092208127de2e00c428 100644
GIT binary patch
delta 115
zcmeC$&Dph^v!R7?3zMWBtEGXViRt7G%;G#oCI&_Z=7wN_?T&U#FXWsZjZBS=jhx(E
mjZB;z4Gi5Jjm?aV9SzM)&5fLmUCdqV6l@47nVu8NBnJS-Y#eL=

delta 115
zcmeC$&Dph^v!R7?3zMWBtFeKJvGL>$%;G#oCI&_Z=7wN_?T&U#FXWs}-7MWKEKDsO
mU0of`UCa$F4V;Z#3=J(!oGlE^U7Zc=6l@47nVu8NBnJT0BOJN_

diff --git a/Doc/RomWBW System Guide.pdf b/Doc/RomWBW System Guide.pdf
index 7ce63e913443e1f4de794df2e0ada58af44b184e..b6feccba1bd750599cb54800d74cea08759520c4 100644
GIT binary patch
delta 121
zcmbPzNon>arG^&97N!>F7M2#)7Pc1lEgWIKtd<6bM&{F_eL3VH%<Xl)95&I;rfx=-
rZf=$aE+)ptMh0ds&IU$~CKiT<W`<7Y2F3<Xb_zCxluZA-f<q1f^P3-s

delta 121
zcmbPzNon>arG^&97N!>F7M2#)7Pc1lEgWIKti}c=hDOt)eL3VH%<Xl)95&I;#>Pgb
rPHtvy1_lO}22RGN#;(RLMoyL{juwW7=57`)b_zCxluZA-f<q1f?fxIB

diff --git a/Doc/RomWBW User Guide.pdf b/Doc/RomWBW User Guide.pdf
index 06e945aae92efa2cd0dadd417c0cbd59abfa83db..59a2a01b741f0233215fe985387d7ab941da60d5 100644
GIT binary patch
delta 14317
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diff --git a/Source/Doc/UserGuide.md b/Source/Doc/UserGuide.md
index 38be134b..ce441935 100644
--- a/Source/Doc/UserGuide.md
+++ b/Source/Doc/UserGuide.md
@@ -5658,6 +5658,7 @@ may be discovered by RomWBW in your system.
 | DS1501RTC | RTC      | Maxim DS1501/DS1511 Watchdog Real-Time Clock           |
 | DSRTC     | RTC      | Maxim DS1302 Real-Time Clock w/ NVRAM                  |
 | DUART     | Char     | SCC2681 or compatible Dual UART                        |
+| EF        | Char     | EF9345 Video Display Controller                        |
 | EMM       | Disk     | Disk drive on Parallel Port emm interface (Zip Drive)  |
 | FD        | Disk     | 8272 or compatible Floppy Disk Controller              |
 | FP        | System   | Simple LED & Switch Front Panel                        |
diff --git a/Source/HBIOS/Config/RCZ180_ext.asm b/Source/HBIOS/Config/RCZ180_ext.asm
index 25cad0e4..3f8c7744 100644
--- a/Source/HBIOS/Config/RCZ180_ext.asm
+++ b/Source/HBIOS/Config/RCZ180_ext.asm
@@ -50,6 +50,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 4c682e3e..d8bd155b 100644
--- a/Source/HBIOS/Config/RCZ180_nat.asm
+++ b/Source/HBIOS/Config/RCZ180_nat.asm
@@ -50,6 +50,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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/RCZ180_z1rcc.asm b/Source/HBIOS/Config/RCZ180_z1rcc.asm
index 052792f6..5556b6ac 100644
--- a/Source/HBIOS/Config/RCZ180_z1rcc.asm
+++ b/Source/HBIOS/Config/RCZ180_z1rcc.asm
@@ -58,6 +58,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
 VDAEMU_SERKBD	.SET	0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 ;
diff --git a/Source/HBIOS/Config/RCZ280_ext.asm b/Source/HBIOS/Config/RCZ280_ext.asm
index f2840178..035b37a1 100644
--- a/Source/HBIOS/Config/RCZ280_ext.asm
+++ b/Source/HBIOS/Config/RCZ280_ext.asm
@@ -49,6 +49,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 1dfe55b6..2d74551c 100644
--- a/Source/HBIOS/Config/RCZ280_nat.asm
+++ b/Source/HBIOS/Config/RCZ280_nat.asm
@@ -49,6 +49,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 66ff739e..7a54bc23 100644
--- a/Source/HBIOS/Config/RCZ280_zz80mb.asm
+++ b/Source/HBIOS/Config/RCZ280_zz80mb.asm
@@ -54,6 +54,7 @@ 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	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
 VDAEMU_SERKBD	.SET	$FF		; 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_zzrcc.asm b/Source/HBIOS/Config/RCZ280_zzrcc.asm
index 7f79d840..db8067b8 100644
--- a/Source/HBIOS/Config/RCZ280_zzrcc.asm
+++ b/Source/HBIOS/Config/RCZ280_zzrcc.asm
@@ -60,6 +60,7 @@ 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	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
 VDAEMU_SERKBD	.SET	$FF		; 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_zzrcc_ram.asm b/Source/HBIOS/Config/RCZ280_zzrcc_ram.asm
index 703fbc21..957535d2 100644
--- a/Source/HBIOS/Config/RCZ280_zzrcc_ram.asm
+++ b/Source/HBIOS/Config/RCZ280_zzrcc_ram.asm
@@ -60,6 +60,7 @@ 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	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
 VDAEMU_SERKBD	.SET	$FF		; 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 d59154ca..ae6a1d8b 100644
--- a/Source/HBIOS/Config/RCZ80_easy.asm
+++ b/Source/HBIOS/Config/RCZ80_easy.asm
@@ -63,6 +63,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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_jbl.asm b/Source/HBIOS/Config/RCZ80_jbl.asm
index b72f6076..e43b54a8 100644
--- a/Source/HBIOS/Config/RCZ80_jbl.asm
+++ b/Source/HBIOS/Config/RCZ80_jbl.asm
@@ -62,6 +62,7 @@ TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSTIMENABLE	.SET	FALSE		; TMS: ENABLE TIMER INTERRUPTS (REQUIRES IM1)
 TMSMODE		.SET	TMSMODE_COLECO	; TMS: DRIVER MODE: TMSMODE_[SCG|N8|MBC|MSX|MSX9958|MSXKBD|COLECO]
 MKYENABLE	.SET	FALSE		; MSX 5255 PPI KEYBOARD COMPATIBLE DRIVER (REQUIRES TMS VDA DRIVER)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
 VDAEMU_SERKBD	.SET	1		; 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/RCZ80_kio.asm b/Source/HBIOS/Config/RCZ80_kio.asm
index e56048d4..df822ed8 100644
--- a/Source/HBIOS/Config/RCZ80_kio.asm
+++ b/Source/HBIOS/Config/RCZ80_kio.asm
@@ -59,6 +59,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 0dcf8039..b2b804c6 100644
--- a/Source/HBIOS/Config/RCZ80_skz.asm
+++ b/Source/HBIOS/Config/RCZ80_skz.asm
@@ -54,6 +54,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 d3b51193..13689758 100644
--- a/Source/HBIOS/Config/RCZ80_std.asm
+++ b/Source/HBIOS/Config/RCZ80_std.asm
@@ -47,6 +47,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 4257cd61..81935820 100644
--- a/Source/HBIOS/Config/RCZ80_tiny.asm
+++ b/Source/HBIOS/Config/RCZ80_tiny.asm
@@ -68,6 +68,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 272aac78..35770df3 100644
--- a/Source/HBIOS/Config/RCZ80_zrc.asm
+++ b/Source/HBIOS/Config/RCZ80_zrc.asm
@@ -48,6 +48,7 @@ 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	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
 VDAEMU_SERKBD	.SET	$FF		; 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_zrc512.asm b/Source/HBIOS/Config/RCZ80_zrc512.asm
index 12457d6b..cf1eed89 100644
--- a/Source/HBIOS/Config/RCZ80_zrc512.asm
+++ b/Source/HBIOS/Config/RCZ80_zrc512.asm
@@ -50,6 +50,7 @@ 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	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
 VDAEMU_SERKBD	.SET	$FF		; 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 59993996..3e3e3ef4 100644
--- a/Source/HBIOS/Config/RCZ80_zrc_ram.asm
+++ b/Source/HBIOS/Config/RCZ80_zrc_ram.asm
@@ -50,6 +50,7 @@ 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	TRUE		; VRC: ENABLE VGARC VIDEO/KBD DRIVER (VRC.ASM)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.ASM)
 VDAEMU_SERKBD	.SET	$FF		; 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 e617d8c9..785580e9 100644
--- a/Source/HBIOS/Config/SCZ180_sc126.asm
+++ b/Source/HBIOS/Config/SCZ180_sc126.asm
@@ -52,6 +52,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 219862cb..9987bf39 100644
--- a/Source/HBIOS/Config/SCZ180_sc130.asm
+++ b/Source/HBIOS/Config/SCZ180_sc130.asm
@@ -53,6 +53,7 @@ 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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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_sc700.asm b/Source/HBIOS/Config/SCZ180_sc700.asm
index 9932cba2..88f38f37 100644
--- a/Source/HBIOS/Config/SCZ180_sc700.asm
+++ b/Source/HBIOS/Config/SCZ180_sc700.asm
@@ -53,6 +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)
+EFENABLE	.SET	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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/cfg_duo.asm b/Source/HBIOS/cfg_duo.asm
index 7fab49e7..bd9606eb 100644
--- a/Source/HBIOS/cfg_duo.asm
+++ b/Source/HBIOS/cfg_duo.asm
@@ -174,6 +174,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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_dyno.asm b/Source/HBIOS/cfg_dyno.asm
index 725ea24d..66726519 100644
--- a/Source/HBIOS/cfg_dyno.asm
+++ b/Source/HBIOS/cfg_dyno.asm
@@ -191,6 +191,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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_epitx.asm b/Source/HBIOS/cfg_epitx.asm
index be4868bb..40be5a09 100644
--- a/Source/HBIOS/cfg_epitx.asm
+++ b/Source/HBIOS/cfg_epitx.asm
@@ -193,6 +193,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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_heath.asm b/Source/HBIOS/cfg_heath.asm
index 8de43899..f1c53d35 100644
--- a/Source/HBIOS/cfg_heath.asm
+++ b/Source/HBIOS/cfg_heath.asm
@@ -196,6 +196,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 3a5236ac..8419d777 100644
--- a/Source/HBIOS/cfg_master.asm
+++ b/Source/HBIOS/cfg_master.asm
@@ -242,6 +242,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 3883d096..147b15cd 100644
--- a/Source/HBIOS/cfg_mbc.asm
+++ b/Source/HBIOS/cfg_mbc.asm
@@ -171,6 +171,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 a5366ccb..f2815b94 100644
--- a/Source/HBIOS/cfg_mk4.asm
+++ b/Source/HBIOS/cfg_mk4.asm
@@ -181,6 +181,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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_mon.asm b/Source/HBIOS/cfg_mon.asm
index 6af777ab..deecfc30 100644
--- a/Source/HBIOS/cfg_mon.asm
+++ b/Source/HBIOS/cfg_mon.asm
@@ -191,6 +191,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 82854384..64d29641 100644
--- a/Source/HBIOS/cfg_n8.asm
+++ b/Source/HBIOS/cfg_n8.asm
@@ -183,6 +183,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 97700fcc..a54bb422 100644
--- a/Source/HBIOS/cfg_rcz180.asm
+++ b/Source/HBIOS/cfg_rcz180.asm
@@ -197,6 +197,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 020c0efb..a4b55f5e 100644
--- a/Source/HBIOS/cfg_rcz280.asm
+++ b/Source/HBIOS/cfg_rcz280.asm
@@ -201,6 +201,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 ee28e99e..4ba87bd7 100644
--- a/Source/HBIOS/cfg_rcz80.asm
+++ b/Source/HBIOS/cfg_rcz80.asm
@@ -196,6 +196,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 5718fdfa..161bd06d 100644
--- a/Source/HBIOS/cfg_rph.asm
+++ b/Source/HBIOS/cfg_rph.asm
@@ -172,6 +172,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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_s100.asm b/Source/HBIOS/cfg_s100.asm
index 23d0a237..9054bca1 100644
--- a/Source/HBIOS/cfg_s100.asm
+++ b/Source/HBIOS/cfg_s100.asm
@@ -191,6 +191,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 5d15f23c..2e3b4590 100644
--- a/Source/HBIOS/cfg_sbc.asm
+++ b/Source/HBIOS/cfg_sbc.asm
@@ -171,6 +171,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 6680cee2..a67633cf 100644
--- a/Source/HBIOS/cfg_scz180.asm
+++ b/Source/HBIOS/cfg_scz180.asm
@@ -191,6 +191,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 b13d2d66..133eda3d 100644
--- a/Source/HBIOS/cfg_z80retro.asm
+++ b/Source/HBIOS/cfg_z80retro.asm
@@ -173,6 +173,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 01d24a9f..ebffc955 100644
--- a/Source/HBIOS/cfg_zeta.asm
+++ b/Source/HBIOS/cfg_zeta.asm
@@ -143,6 +143,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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 47e7f652..39c675e9 100644
--- a/Source/HBIOS/cfg_zeta2.asm
+++ b/Source/HBIOS/cfg_zeta2.asm
@@ -154,6 +154,7 @@ 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)
 SCONENABLE	.EQU	FALSE		; SCON: ENABLE S100 CONSOLE DRIVER (SCON.ASM)
+EFENABLE	.EQU	FALSE		; EF: ENABLE EF9345 VIDEO DRIVER (EF.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/ef.asm b/Source/HBIOS/ef.asm
new file mode 100644
index 00000000..8a7e6db3
--- /dev/null
+++ b/Source/HBIOS/ef.asm
@@ -0,0 +1,1083 @@
+;======================================================================
+;	EF9345 DRIVER FOR ROMWBW
+;
+;	PARTS WRITTEN BY: ALAN COX
+;	REVISED/ENHANCED BY LASZLO SZOLNOKI -- 01/2024
+;======================================================================
+; TODO:
+;	- 40X24 IMPLEMENTATION
+;======================================================================
+; EF9345 DRIVER - CONSTANTS
+;======================================================================
+;
+TERMENABLE	.SET	TRUE      	; INCLUDE TERMINAL PSEUDODEVICE DRIVER
+;
+EF_BASE		.EQU	$F0
+EF_SETREG	.EQU	EF_BASE + 4
+EF_DATAACC	.EQU	EF_BASE + 5
+EF_RESET	.EQU	EF_BASE + 6
+;
+EF_SIZE		.EQU	V80X24
+;
+EF_R0		.EQU	$20
+EF_R1		.EQU	EF_R0+1
+EF_R2		.EQU	EF_R0+2
+EF_R3		.EQU	EF_R0+3
+EF_R4		.EQU	EF_R0+4
+EF_R5		.EQU	EF_R0+5
+EF_R6		.EQU	EF_R0+6
+EF_R7		.EQU	EF_R0+7
+;
+EF_XA		.EQU	EF_R5
+EF_YA		.EQU	EF_R4
+EF_XP		.EQU	EF_R7
+EF_YP		.EQU	EF_R6
+;
+EF_EXEC		.EQU	00001000b
+;
+EF_TGSREG	.EQU 	1
+EF_MATREG	.EQU	2
+EF_PATREG	.EQU	3
+EF_DORREG	.EQU	4
+EF_RORREG	.EQU	7
+;EF_WRTINDIR	.EQU 10000000b
+;
+; CMD
+;
+EF_NOP		.EQU	$91		;
+EF_IND		.EQU	$80		;
+EF_CLF		.EQU	$05		;
+EF_OCT		.EQU	$30		;
+EF_OCTAUX	.EQU	$04		; AUXILIARY POITER
+EF_KRF		.EQU	$00		; NO AUTOINCREMENT
+EF_KRL		.EQU	$50		; NO AUTOINCREMENT
+EF_INY		.EQU	$B0		; INC Y
+;
+;EF_IND_TGS	.EQU	$81
+;EF_IND_MAT	.EQU	$82
+;EF_IND_PAT	.EQU	$83
+;EF_IND_DOR	.EQU	$84
+;EF_IND_ROR	.EQU	$87
+EF_RREG		.EQU	00001000b
+;EF_WREG	.EQU    ~EF_RREG
+;
+; | 1 | 0 | 0| 0| R/!W | r | r | r |   IND command
+;                        0   0   1     TGS
+;                        0   1   0     MAT
+;                        0   1   1     PAT
+;                        1   0   0     DOR
+;                        1   0   1
+;                        1   1   0
+;                        1   1   1     ROR
+;						MAT5	MAT4
+; fixed complemented	  0		  0
+; flash complemented	  1		  0
+; fixed underlined		  0		  1
+; flash underlined		  1		  1
+;
+EF_NOCU		.EQU	10111111B	; MAT6 = 0 : NO CURSOR
+EF_BLK		.EQU	00100000B	; MAT5 = 1 : BLINK CURSOR
+EF_NOBL		.EQU	11011111B	; MAT5 = 0 : NO BLINK
+;
+EF_BLOK		.EQU	11101111b	; MAT4 = 0 : BLOCK CURSOR
+EF_ULIN		.EQU	00010000b	; MAT4 = 1 : UNDERLINE CURSOR
+;
+EF_CURENA	.EQU	TRUE		; ENABLE CURSOR
+;
+EF_MARCOL	.EQU	00000000B	; MARGIN COLOR BLACK : MAT0 = R, MAT1 = G, MAT2 = B
+EF_MARENA	.EQU	00001000B	; MARGIN INSERT : MAT3 = 1
+;
+EF_CUREN	.EQU	01000000B	; MAT6 = 1 : CURSOR ENABLED
+EF_DISCU	.EQU	10111111B	; MAT6 = 0 : NO CURSOR
+;
+EF_BLINK	.EQU	00100000B	; MAT5 = 1 : BLINK CURSOR
+EF_NOBLINK	.EQU	11011111B	; MAT5 = 0 : NO BLINK
+;
+EF_COMPL	.EQU	11101111b	; MAT4 = 0 : BLOCK CURSOR
+;
+EF_FLASHCHAR	.EQU    00001000B
+EF_REVERSCHAR	.EQU    10000000B
+;
+#IF EF_CURENA
+EF_CSTY 	.EQU	EF_CUREN | EF_BLINK | EF_ULIN | EF_MARENA | EF_MARCOL
+#ELSE
+EF_CSTY 	.EQU	EF_MARENA | EF_MARCOL
+#ENDIF
+;
+FIRSTLINE	.EQU	8
+;
+#IF (EF_SIZE=V80X24)			; V80X24
+EF_DLINES	.EQU	24
+EF_DROWS	.EQU	80
+EF_DSCANL	.EQU	10
+; ATTRIBUTES
+EF_FLASH	.EQU	01000100B
+EF_NEGATIVE	.EQU	10001000B
+EF_UNDERLINE	.EQU	00100010B
+EF_COLORSET	.EQU	00010001B
+#ENDIF
+;
+#IF (EF_SIZE=V40X24)
+EF_DLINES	.EQU	24
+EF_DROWS	.EQU	40
+EF_DSCANL	.EQU	10
+; ATTRIBUTES
+EF_FLASH	.EQU	01000100B
+EF_NEGATIVE	.EQU	10001000B
+EF_UNDERLINE	.EQU	00100010B
+EF_COLORSET	.EQU	00010001B
+#ENDIF
+;
+; DISTRICTS
+;
+EF_DIST0 	.EQU 	0
+EF_DIST1 	.EQU 	$20
+EF_DIST2 	.EQU 	$80
+EF_DIST3 	.EQU 	$A0
+;
+EF_BG_BLACK	.EQU	$0
+EF_BG_RED	.EQU	$10
+EF_BG_GREEN	.EQU	$20
+EF_BG_BROWN	.EQU	$30
+EF_BG_BLUE	.EQU	$40
+EF_BG_MAGENTA	.EQU	$50
+EF_BG_CYAN	.EQU	$60
+EF_BG_WHITE	.EQU	$70
+EF_FG_BLACK	.EQU	0
+EF_FG_RED	.EQU	1
+EF_FG_GREEN	.EQU	2
+EF_FG_BROWN	.EQU	3
+EF_FG_BLUE	.EQU	4
+EF_FG_MAGENTA	.EQU	5
+EF_FG_CYAN	.EQU	6
+EF_FG_WHITE	.EQU	7
+;
+EF_SCREENSIZE	.EQU	EF_DROWS * EF_DLINES
+;
+;======================================================================
+; VDU DRIVER - INITIALIZATION
+;======================================================================
+;
+EF_INIT:
+;
+	LD IY,EF_IDAT			; POITER TO INSTANCE DATA
+;
+	CALL	NEWLINE			; FORMATTING
+	PRTS("EF : IO=0x$")
+	LD	A,EF_BASE
+	CALL	PRTHEXBYTE
+
+	PRTS(" MODE=$")			; OUTPUT DISPLAY FORMAT
+	LD	A,EF_DROWS
+	CALL	PRTDECB
+	PRTS("X$")
+	LD	A,EF_DLINES
+	CALL	PRTDECB
+
+	CALL	EF_PROBE		; CHECK FOR HW EXISTENCE
+	JR	Z,EF_INIT1		; CONTINUE IF HW PRESENT
+;
+	PRTS(" NOT PRESENT$")
+	XOR	A
+	OR	-8			; HARDWARE NOT PRESENT
+	RET
+;
+EF_INIT1:
+	OUT (EF_RESET),A		; HARDWARE RESET
+;
+	LD	A,EF_DIST0
+	LD	(EF_CON_BANKY),A		;
+;
+	CALL 	EF_CRTINIT		; INIT EF9345 CHIP
+;
+; ADD OURSELVES TO VDA DISPATCH TABLE
+	LD	BC,EF_FNTBL		; BC := FUNCTION TABLE ADDRESS
+ 	LD	DE,EF_IDAT		; DE := VDU INSTANCE DATA PTR
+	CALL	VDA_ADDENT		; ADD ENTRY, A := UNIT ASSIGNED
+;
+#IF TERMENABLE
+	; INITIALIZE EMULATION
+	LD	C,A			; ASSIGNED VIDEO UNIT IN C
+	LD	DE,EF_FNTBL		; DE := FUNCTION TABLE ADDRESS
+	LD	HL,EF_IDAT		; HL := VDU INSTANCE DATA PTR
+	CALL	TERM_ATTACH		; DO IT
+#ENDIF
+;
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+EF_CRTINIT:
+	LD	DE,(EF_R0+EF_EXEC)*256 + EF_NOP	; FORCE NOP
+	CALL	EF_WWRREG
+;
+	LD	HL,EF_INIT9345		; INITIAL SETUP PARAMETERS
+	CALL	EF_LOAD_MODE
+;
+	LD	DE,0
+	LD	(EF_VDA_OFFSET),DE
+;
+#IF (EF_SIZE = V40X24)
+	XOR	A
+	LD	(EF_VDATYPESET),A
+#ENDIF
+;
+; E = CHARACTER ATTRIBUTES : E0 = BLINK, E1 = UNDELINE, E2 = REVERSE, E3  = COLOR SET
+; VIDEO SET CHARACTER ATTRIBUTE FOR SCROLL, KRL, ETC.
+	LD	E,00000000B
+	CALL	EF_VDASAT
+;
+	LD	E,EF_BG_BLACK + EF_FG_WHITE	; SET CHARACTER COLOR
+	CALL	EF_VDASCO
+;
+; VIDEO SET CURSOR STYLE
+; ENTRY: C = VIDEO UNIT, D = START/END, E = STYLE : E0 = BLINK/FLASH, E1 = UNDELINE, E2 = REVERSE/COMPLEMENT
+; MAT5 = 1 : FLASH, MAT4 = 0 : COMPLEMENT
+; RETURN A = STATUS
+	LD	E,3				; UNDERLINED BLINKING
+	CALL	EF_VDASCS
+;
+	CALL	EF_CLEARALL
+;
+	LD	DE,0				; SET CURSOR TO 0,0
+	CALL	EF_VDASCP
+	RET
+;
+EF_CLEARALL:
+	LD	DE,0				; SET CURSOR 0,0
+	CALL	EF_VDASCP			; D = ROW, E = COLUMNS
+	LD	HL,EF_DROWS * EF_DLINES
+;
+	LD	E,' '
+	CALL	EF_VDAFIL
+	XOR	A
+	RET
+;
+; R1 := C BYTE IS THE CHARACTER CODE
+; R2 := B BYTE TYPE AND SET, OTHER PARAMETERS
+; R3 := A BYTE ATTRIBUTES, NEGATIVE, FG COLOR, FLASH, BG COLOR
+;
+#IF (EF_SIZE=V80X24)
+EF_KRL80:
+	PUSH	DE
+	LD	DE,EF_R0*256 + EF_KRL	; R0 KRL COMMAND
+	CALL	EF_WWRREG
+	LD	D,EF_R3
+	LD	A,(EF_VDAATTR)		; DOUBLE ATTRIBUTES FOR LOWER NIBBLE
+	LD	E,A
+	CALL	EF_WWRREG
+	POP	DE
+	RET
+#ENDIF
+;
+#IF (EF_SIZE = V40X24)
+EF_KRF40:
+	PUSH	DE
+	LD	DE,EF_R0*256 + KRF
+	CALL	EF_WWRREG
+	LD	D,R3
+	LD	A,(EF_VDACOLOR)
+	LD	B,A
+	LD	A,(EF_VDAATTR)
+	OR	B
+	LD	E,A				; COLOR
+	CALL	EF_WRREG
+	LD	D,EF_R2
+	LD	A,(EF_VDATYPESET)
+	LD	E,A
+	CALL	EF_WRREG
+	POP	DE
+	XOR	A
+	RET
+#ENDIF
+;
+;----------------------------------------------------------------------
+; PROBE FOR EF9345 HARDWARE
+;----------------------------------------------------------------------
+;
+; ON RETURN, ZF SET INDICATES HARDWARE FOUND
+;
+EF_PROBE:
+	LD	DE,EF_R1*256+'a'
+	LD	H,E
+	CALL	EF_WRREG
+	CALL	EF_RDREG
+	CP	H
+	RET
+;
+;----------------------------------------------------------------------
+; WAIT FOR VDU TO BE READY FOR A DATA READ/WRITE
+;----------------------------------------------------------------------
+;
+EF_WAITRDY:
+	LD	A,EF_R0
+	OUT	(EF_SETREG),A
+	IN	A,(EF_DATAACC)
+	RLA
+	JR	C,EF_WAITRDY
+	RET
+;
+;----------------------------------------------------------------------
+; UPDATE EF9345 REGISTERS
+;   EF_WRREG WRITES VALUE IN E TO EF9345 REGISTER SPECIFIED IN D
+;	EF_WWRREG AFTER WAITING FOR READY WRITES VALUE IN E TO EF9345 REGISTER SPECIFIED IN D
+;-------------------------------------------------------------------	--
+;
+EF_WWRREG:
+	CALL	EF_WAITRDY
+EF_WRREG:
+	LD	A,D
+	OUT	(EF_SETREG),A
+	LD	A,E
+	OUT	(EF_DATAACC),A
+	RET
+;
+;----------------------------------------------------------------------
+; READ EF9345 REGISTERS
+;   EF_RDREG READS EF9345 REGISTER SPECIFIED IN D AND RETURNS VALUE IN A AND E
+;----------------------------------------------------------------------
+EF_RDREG:
+	CALL	EF_WAITRDY
+	LD	A,D
+	OUT	(EF_SETREG),A
+	IN	A,(EF_DATAACC)
+	LD	E,A
+	RET
+;
+;----------------------------------------------------------------------
+; READ INDIRECT EF9345 REGISTERS
+;   EF_READ_INDIR READS EF9345 REGISTER SPECIFIED IN D AND RETURNS VALUE IN A AND E
+;----------------------------------------------------------------------
+;
+EF_READ_INDIR:
+	LD	A,EF_IND
+	OR	D
+	OR	EF_RREG
+	LD	E,A
+	LD	D,EF_R0 + EF_EXEC
+	CALL	EF_WWRREG
+	LD	D,EF_R1
+	CALL	EF_RDREG
+	RET
+;
+;----------------------------------------------------------------------
+; WRITES INDIRECT EF9345 REGISTERS
+;   EF_LOAD_INDIR WRITES VALUE IN E TO INDIRECT EF9345 REGISTER SPECIFIED IN D
+;----------------------------------------------------------------------
+;
+EF_LOAD_INDIR:				; D = TARGET REGISTER, E = VALUE TO WRITE
+	PUSH	DE
+	LD	D,EF_R1
+	CALL	EF_WWRREG
+	POP	DE
+	PUSH	DE
+	LD	A,EF_IND
+	OR	D
+	LD	E,A
+	LD	D,EF_R0 + EF_EXEC
+	CALL	EF_WWRREG
+	POP	DE
+	RET
+;
+EF_LOAD_MODE:				; LOAD MODE
+	LD	D,EF_TGSREG			; START INDIRECT REGISTER 1 : TGS
+	LD	B,EF_INIT_CNT		; LOAD 5 INDIRECT REGISTERS
+EF_MODEREG:
+	LD	E,(HL)
+	CALL	EF_LOAD_INDIR
+	INC	HL
+	INC	D
+	LD	A,EF_INIT_CNT
+	CP	D
+	JR	NZ,EF_NOSKIP
+	INC	D
+	INC	D
+	LD	E,(HL)
+	LD	A,(EF_CON_BANKY)
+	ADD	A,E
+	LD	E,A
+	CALL	EF_LOAD_INDIR
+	RET
+EF_NOSKIP:
+	DJNZ	EF_MODEREG
+	RET
+;
+EF_GETXY:				; D = ROW, E = COLUMNS
+	CALL	EF_GETX
+	CALL	EF_GETY
+	RET
+;
+EF_GETX:				; E = COLUMNS
+	CALL	EF_WAITRDY
+	LD	D,EF_XP
+	CALL	EF_RDREG
+#IF (EF_SIZE=V80X24)
+	RLCA				; CORRECTION 80 ROWS MODE
+#ENDIF
+	LD	E,A
+	RET
+;
+EF_GETY:				; D = ROW
+	CALL	EF_WAITRDY
+	PUSH	DE
+	LD	D,EF_YP
+	CALL	EF_RDREG
+	AND	00011111B
+	PUSH	HL
+	LD	HL,(EF_VDA_OFFSET)
+	SUB	H
+	POP	HL
+	SUB	FIRSTLINE
+	POP	DE
+	LD	D,A
+	RET
+;
+EF_LOADFONTS:
+	PRTS("Not implemented$")
+	CALL	NEWLINE
+	SYSCHKERR(ERR_NOTIMPL)		; NOT IMPLEMENTED (YET)
+	LD	A,-2
+	OR	A
+	RET
+;
+EF_NOTIMP:
+	PRTS("Not implemented$")
+	CALL	NEWLINE
+	SYSCHKERR(ERR_NOTIMPL)		; NOT IMPLEMENTED (YET)
+	XOR	A
+	OR	-2			; FUNCTION NOT IMPLEMENTED
+	RET
+;
+EF_CURSORON:				; CURSOR DISPLAY ENABLE
+	PUSH	DE
+	PUSH	AF
+	LD	D,EF_MATREG		; LOAD CURSOR ENABLE
+	CALL	EF_READ_INDIR
+	OR	01000000B
+	LD	D,EF_MATREG		; SET CURPOS ENABLE
+	LD	E,A
+	CALL	EF_LOAD_INDIR
+	POP	AF
+	POP	DE
+	RET
+;
+EF_CURSOROFF:
+	PUSH	DE
+	PUSH	AF
+	LD	D,EF_MATREG		; LOAD CURSOR ENABLE
+	CALL	EF_READ_INDIR
+	AND	10111111B
+	LD	D,EF_MATREG		; SET CURSOR ENABLE
+	LD	E,A
+	CALL	EF_LOAD_INDIR
+	POP	AF
+	POP	DE
+	RET
+;
+EF_INCCURSOR:				; CURSOR POSITION, D = ROW, E = COLUMN
+; Y , X WITH	MODULO DROWS
+	PUSH	DE
+	PUSH	HL
+	LD	HL,(EF_VDA_OFFSET)
+	LD	DE,(EF_VDA_POS)
+	ADD	HL,DE
+	INC	DE
+	LD	A,EF_DROWS
+	CP	E
+	JR	NZ,EF_CURS0
+	LD	E,0
+	INC	D
+	LD	A,EF_DLINES
+	CP	D
+	JR	NZ,EF_CURS0
+;	LD	D,0
+	DEC	D			; Y REMAINS INSIDE THE BOUNDARY
+	LD	(EF_VDA_POS),DE
+	CALL	EF_VDASCP
+	POP	HL
+	POP	DE
+	OR	-6			; PARAMETER OUT OF RANGE
+	RET
+EF_CURS0:
+	LD	(EF_VDA_POS),DE
+	CALL	EF_VDASCP
+	POP	HL
+	POP	DE
+	RET
+;
+;----------------------------------------------------------------------
+;  DISPLAY CONTROLLER CHIP INITIALIZATION
+;----------------------------------------------------------------------
+;
+EF_INIT9345:
+#IF (EF_SIZE=V80X24)		; E)
+EF_TGS:	.DB 11000010b		; 80 char/row, long char code (12 bits) : TGS Register interlaced
+EF_MAT:	.DB EF_CSTY		; 01001000b		; cursor enabled, fixed complent cursor, margin color = black : MAT Register
+EF_PAT:	.DB 01111110b		; 80 char/row, long code, upper/lower bulk on, conceal on,
+				; I high during active disp. area, status row disebled : PAT Register
+EF_DOR:	.DB 10001111b		; DOR(3:0) = 1111   : color c0 = white, DOR(7:4) = 1000 : color c1 = black
+EF_ROR:	.DB 00001000b		; ROR(7:5) =   000  : displayed page memory starts from block 0
+				; ROR(4:0) = 01000 : origin row = 8
+#ENDIF
+;
+#IF (EF_SIZE=V40X24)
+EF_TGS:	.DB 00000000B		; 40 char/row, long char code (24 bits) : TGS Register interlaced
+EF_MAT:	.DB EF_CSTY		; 01001100B cursor enabled, fixed complent cursor, margin color = black : MAT Register
+EF_PAT:	.DB 01111110B		; 40 char/row, long code, upper/lower bulk on, conceal on,
+				; I high during active disp. area, status row disebled : PAT Register
+; DOR register initialization
+;
+; DOR(3:0) = 0011 : alpha UDS slices in block 3
+; DOR(6:4) = 001 : semigraphic uds slices in block 2 and 3
+; DOR 7 = 0 : Quadrichrome slices from block 0
+EF_DOR:	.DB 0		;
+EF_ROR:	.DB 00001000B		; ROR(7:5) =   000  : displayed page memory starts from block 0
+				; ROR(4:0) = 01000 : origin row = 8
+#ENDIF
+
+EF_INIT_CNT:	.EQU	$ - EF_INIT9345
+;
+;======================================================================
+; EF9345 DRIVER - VIDEO DISPLAY ADAPTER FUNCTIONS
+;======================================================================
+;
+EF_FNTBL:
+	.DW	EF_VDAINI
+	.DW	EF_VDAQRY
+	.DW	EF_VDARES
+	.DW	EF_VDADEV
+	.DW	EF_VDASCS
+	.DW	EF_VDASCP
+	.DW	EF_VDASAT
+	.DW	EF_VDASCO
+	.DW	EF_VDAWRC
+	.DW	EF_VDAFIL
+	.DW	EF_VDACPY
+	.DW	EF_VDASCR
+	.DW	EF_NOTIMP		; PPK_STAT
+	.DW	EF_NOTIMP		; PPK_FLUSH
+	.DW	EF_NOTIMP		; PPK_READ
+	.DW	EF_VDARDC
+#IF (($ - EF_FNTBL) != (VDA_FNCNT * 2))
+	.ECHO	"*** INVALID VDU FUNCTION TABLE ***\n"
+#ENDIF
+;
+EF_VDAINI:
+; VIDEO INITIALIZE
+; FULL REINITIALIZATION, CLEAR SCREEN, CURRENTLY IGNORES VIDEO MODE AND BITMAP DATA
+	PUSH	HL
+	CALL	EF_INIT1
+	POP	HL
+	LD	A,L
+	OR	H
+	CALL	NZ,EF_LOADFONTS
+	XOR	A
+	RET
+;
+EF_VDAQRY:
+; VIDEO QUERY
+; ENTRY: C = VIDEO UNIT, HL = FONT BITMAT
+; RETURN: C = VIDEO MODE, D = ROWS, E = COLUMNS, HL = FONT BITMAT
+	LD	C,$00			; MODE ZERO IS ALL WE KNOW
+	LD	D,EF_DLINES
+	LD	E,EF_DROWS
+	LD	HL,0			; EXTRACTION OF CURRENT BITMAP DATA NOT SUPPORTED
+	XOR	A			; SIGNAL SUCCESS
+	RET
+;
+EF_VDARES:
+; VIDEO RESET
+; SOFT RESET, CLEAR SCREEN, HOME CURSOR, RESTORE ATTRIBUTE/COLOR DEFAULTS
+;
+	CALL	EF_CLEARALL
+	CALL	EF_LOADCSTYLE
+	LD	DE,0
+	LD	(EF_VDA_OFFSET),DE
+	CALL	EF_VDASCP
+	XOR	A
+	RET
+;
+EF_VDADEV:
+; VIDEO DEVICE
+; ENTRY: C = VIDEO UNIT
+; RETURN: D := DEVICE TYPE, E := DEVICE NUMBER, H := DEVICE UNIT MODE, L := DEVICE I/O BASE ADDRESS
+	LD	DE,(VDADEV_EF * 256) + 0	; D := DEVICE TYPE
+						; E := PHYSICAL UNIT IS ALWAYS ZERO
+	LD	HL,EF_BASE			; H INDICATES THE VARIANT OF THE CHIP OR CIRCUIT, H = 0 : NO VARIANTS
+						; L := BASE I/O ADDRESS
+	XOR	A				; SIGNAL SUCCESS
+	RET
+;
+EF_VDASCS:
+; VIDEO SET CURSOR STYLE
+; ENTRY: C = VIDEO UNIT, D = START/END, E = STYLE : E0 = BLINK/FLASH, E1 = UNDELINE, E2 = REVERSE/COMPLEMENT
+; MAT5 = 1 : FLASH, MAT4 = 0 : COMPLEMENT
+; RETURN A = STATUS
+	XOR	A
+	SRA	E
+	JR	NC,EF_VDASCS0
+	OR	EF_BLINK		; CURSOR IS BLINKING
+EF_VDASCS0:
+	SRA	E
+	JR	NC,EF_VDASCS1
+	OR	EF_ULIN			; UNDERLINED CURSOR
+	JR	EF_VDASCS2
+EF_VDASCS1:
+	SRA	E
+	JR	NC,EF_VDASCS2
+	AND	EF_COMPL
+EF_VDASCS2:
+	LD	(EF_VDACATTR),A
+	CALL	EF_LOADCSTYLE
+	XOR	A
+	RET
+;
+EF_VDASCP:
+; SET VIDEO CURSOR POSITION
+; ENTRY: C = VIDEO UNIT, D = ROW, E = COLUMN
+; RETURN A = STATUS
+; CHECKING THE FEASIBILITY OF THE INPUT VALUES
+	LD	A,EF_DLINES-1
+	CP	D
+	JR	C,EF_VDASCP0
+	LD	A,EF_DROWS-1
+	CP	E
+	JR	C,EF_VDASCP0
+	LD	(EF_VDA_POS),DE		; D = ROW, E = COLUMNS
+;
+	PUSH	DE
+#IF (EF_SIZE=V80X24)
+	RRC	E			; ADJUST TO 80 COLUMN LAYOUT
+#ENDIF
+	LD	D,EF_XP			; X POSITION
+	CALL	EF_WWRREG
+	POP	DE
+;
+	PUSH	HL
+	LD	HL,(EF_VDA_OFFSET)
+	LD	A,H
+	POP	HL
+;
+	ADD	A,FIRSTLINE
+	ADD	A,D
+	CP	FIRSTLINE+EF_DLINES
+	JR	C,EF_SETYP0
+	SUB	EF_DLINES
+EF_SETYP0:
+	LD	E,A
+	LD	A,(EF_CON_BANKY)	; STAY IN DISTRICT
+	OR	E
+	LD	E,A
+	LD	D,EF_YP
+	CALL	EF_WWRREG
+	XOR	A
+	RET
+EF_VDASCP0:
+	XOR	A
+	OR	-6			; PARAMETERS OUT OF RANGE $FF
+	RET
+;
+EF_VDASAT:
+; VIDEO SET CHARACTER ATTRIBUTE FOR SCROLL, KRL, ETC.
+; ENTRY: C = VIDEO UNIT, E = ATTRIBUTE
+; 80 CHARACTER/ROW STYLE := E0 = BLINK, E1 = UNDELINE, E2 = REVERSE, E3 = COLOR SELECT
+; 40 CHARACTER/ROW STYLE := E0 = BLINK, E1 = UNDELINE, E2 = REVERSE, E3 = COLOR SELECT, E4..E7 = TYPE AND SET
+; B(0)		:= INSERT
+; B(1)		:= DOUBLE HIGHT
+; B(2)		:= concealed character appears as a space on the screen
+; B(3)		:= DOUBLE WIDTH
+; B(4..7) 	:= TYPE AND SET
+; RETURN A = STATUS
+#IF (EF_SIZE=V80X24)
+	XOR	A
+	SRA	E			; IS BLINKING
+	JR	NC,EF_VDASAT0
+	OR	EF_FLASH
+EF_VDASAT0:
+	SRA	E
+	JR	NC,EF_VDASAT1
+	OR	EF_UNDERLINE		; UNDERLINED CURSOR
+EF_VDASAT1:
+	SRA	E
+	JR	NC,EF_VDASAT
+	OR	EF_NEGATIVE		; NEGATIVE CURSOR
+EF_VDASAT2:
+	SRA	E
+	JR	NC,EF_VDASAT3
+	OR	EF_COLORSET
+EF_VDASAT3:
+#ENDIF
+#IF (EF_SIZE=V40X24)
+; set VDATYPESET
+	LD	A,E
+	AND	$F0
+	LD	(EF_VDATYPESET),A
+	XOR	A
+	SRA	E			; IS BLINKING
+	JR	NC,EF_VDASAT0
+	OR	EF_FLASHCHAR
+EF_VDASAT0:
+	SRA	E
+	SRA	E
+	JR	NC,EF_VDASAT1
+	OR	EF_REVERSCHAR
+EF_VDASAT1:
+#ENDIF
+	LD	(EF_VDAATTR),A
+	XOR	A
+	RET
+;
+EF_LOADCSTYLE:
+	LD	A,(EF_VDACATTR)
+	LD	B,A
+	LD	D,EF_MATREG
+	CALL	EF_READ_INDIR
+	AND	11001111B
+	OR	B
+	LD	E,A
+	LD	D,EF_MATREG
+	CALL	EF_LOAD_INDIR
+	RET
+;
+EF_VDASCO:
+; VIDEO SET CHARACTER COLOR
+; ENTRY C = VIDEO UNIT, E = COLOR
+; RETURN A = STATUS
+	CALL	EF_WAITRDY
+#IF (EF_SIZE=V80X24)	; COLOR SETUP USE MARGIN COLOR IN MAT AND
+	LD	A,E
+	LD	B,A			; B = BG
+	SRL	B
+	SRL	B
+	SRL	B
+	SRL	B
+	AND	$F8			; MASK BG COLOR
+	LD	A,E
+	AND	$07			; MASK FG COLOR
+	LD	C,A			; C = FG
+	LD	D,EF_DORREG		; LOAD FG COLOR FROM DOR(3..0)
+	CALL	EF_READ_INDIR
+	AND	$F8
+	OR	C			; SET NEW FG COLOR
+	LD	E,A
+	LD	D,EF_DORREG		; LOAD NEW FG COLOR
+	CALL	EF_LOAD_INDIR
+;
+	LD	D,EF_MATREG		; LOAD BG COLOR
+	CALL	EF_READ_INDIR
+	AND	$F8			; MASK BG COLOR
+	OR	B			; SET NEW BG COLOR
+	LD	E,A
+	LD	D,EF_MATREG		; LOAD NEW BG COLOR
+	CALL	EF_LOAD_INDIR
+#ENDIF
+#IF (EF_SIZE=V40X24)
+	LD	HL,EF_VDACOLOR
+	LD	A,E
+	AND	$7			; MASK FG COLOR
+	RLD
+	LD	A,E
+	SRL	A			; BG COLOR TO LOW ORDER FOUR BITS
+	SRL	A
+	SRL	A
+	SRL	A
+	RLD
+#ENDIF
+	XOR A
+	RET
+;
+EF_VDAWRC:
+; VIDEO WRITE CHARACTER,
+; ENTRY C = VIDEO UNIT, E = CHARACTER
+; RETURN A = STATUS
+#IF (EF_SIZE=V80X24)
+	CALL	EF_KRL80
+	LD	D,EF_R1+EF_EXEC
+	CALL	EF_WWRREG
+#ENDIF
+#IF (EF_SIZE=V40X24)
+	CALL	EF_KRF40
+	LD	D,EF_R1+EF_EXEC
+	CALL	EF_WWRREG
+#ENDIF
+	CALL	EF_INCCURSOR
+	XOR	A
+	RET
+;
+EF_VDAFIL:
+; VIDEO FILL
+; ENTRY: C = VIDEO UNIT, E = CHARACTER, HL = COUNT OF CHARACTERS
+; RETURN A = STATUS
+	CALL	EF_CURSOROFF
+EF_VDAFIL0:
+	CALL	EF_VDAWRC
+	DEC	HL
+	LD	A,H
+	OR	L
+	JR	NZ,EF_VDAFIL0
+	CALL	EF_CURSORON
+	XOR	A
+	RET
+;
+EF_VDACPY:
+; VIDEO COPY
+; ENTRY C = VIDEO UNIT, D = SOURCE ROW, E =  SOURCE COLUMN, L = COUNT
+; RETURN A = STATUS
+	PUSH	DE			; SAVE SOURCE
+	LD	A,L
+	LD	(EF_CPYCNT),A
+	CALL	EF_CURSOROFF
+	CALL	EF_GETXY		; GET AND SAVE CURRENT CURSOR POSITION
+	LD	(EF_CURPOS),DE
+; CHECK END OF SCREEN
+	LD	H,D			; D = CURRENT LINE
+	LD	E,EF_DROWS		; CHARACTERS IN ROW
+	CALL	MULT8			; LINES * DROWS
+	POP	DE
+	PUSH	DE
+	LD	D,0
+	ADD	HL,DE			; ADD CHARACTERS IN CURRENT LINE := USED CHARACTERS
+	EX	DE,HL
+	LD	HL,EF_DLINES*EF_DROWS	; AVAILABLE CHARACTER COUNT
+	XOR	A
+	SBC	HL,DE			; REMAINING CHARACTERS = AVAILABLE - USED
+	LD	C,L			; SAVE REMAINING CHARACTER COUNT
+	LD	A,(EF_CPYCNT)
+	LD	B,A
+	LD	E,A
+	LD	D,0
+	SBC	HL,DE			; COMPARE COPY COUNT WITH AVAILABLE
+	JR	NC,EF_CPY0
+	LD	B,C			; ADJUST COPY COUNT
+EF_CPY0:
+	POP	DE
+	CALL	EF_VDASCP		; SET SOURCE AS CURSOR
+	LD	HL,EF_BUF
+	PUSH	BC
+EF_CPYRD:
+#IF (EF_SIZE=V80X24)
+	PUSH	BC
+	CALL	EF_VDARDC
+	POP	BC
+	LD	(HL),E
+	INC	HL
+#ENDIF
+#IF (EF_SIZE=V40X24)
+	PUSH	HL
+	PUSH	BC
+	CALL	 EF_VDARDC
+	LD	A,L
+	POP	BC
+	POP	HL
+	LD	(HL),E
+	INC	HL
+	LD	(HL),A
+	INC	HL
+#ENDIF
+	CALL	EF_INCCURSOR
+	DJNZ	EF_CPYRD
+	LD	DE,(EF_CURPOS)		; RECOVER AND SET CURSOR POSITION
+	CALL	EF_VDASCP
+	POP	BC
+	LD	HL,EF_BUF
+EF_CPYWR:
+#IF (EF_SIZE=V80X24)
+	PUSH	BC
+	LD	E,(HL)
+	CALL	EF_VDAWRC
+	INC	HL
+	POP	BC
+	DJNZ	EF_CPYWR
+#ENDIF
+#IF (EF_SIZE=V40X24)
+	PUSH	BC
+	LD	E,(HL)
+	INC	HL
+	PUSH	HL
+	LD	L,(HL)
+	CALL	EF_VDAWRC
+	POP	HL
+	INC	HL
+	POP	BC
+	DJNZ	EF_CPYWR
+#ENDIF
+	; RESTORE CURSOR
+	LD	DE,(EF_CURPOS)
+	CALL	EF_VDASCP
+	CALL	EF_CURSORON
+	XOR	A
+	RET
+;
+EF_VDASCR:
+; VIDEO SCROLL
+; ENTRY: C = VIDEO UNIT, E = LINES
+; RETURN A = STATUS
+	CALL	EF_CURSOROFF
+EF_VDASCR0:
+	LD	A,E
+	OR	A
+	JR	Z,EF_VDASCR2		; SCROLL 0, NOTHING TO DO
+	PUSH	DE
+	RLCA
+	JR	C,EF_VDASCR1
+	CALL	EF_SCRUP
+	POP	DE
+	DEC	E
+	JR	EF_VDASCR0
+EF_VDASCR1:
+	CALL	EF_SCRDOWN
+	POP	DE
+	INC	E
+	JP	EF_VDASCR0
+EF_VDASCR2:
+	CALL	EF_CURSORON
+	RET
+;
+EF_SCRUP:
+	LD	HL,(EF_VDA_OFFSET)
+	LD	DE,$0100 		; inc y
+	ADD	HL,DE
+	LD	A,H
+	CP	EF_DLINES
+	JR	NZ,EF_SCRUP0
+	LD	HL,0
+EF_SCRUP0:
+	LD	(EF_VDA_OFFSET),HL
+	LD	A,(EF_CON_BANKY)
+	ADD	A,H
+	ADD	A,FIRSTLINE
+	LD	E,A
+	LD	D,EF_RORREG
+	CALL	EF_LOAD_INDIR
+; fill exposed line
+	LD	HL,(EF_VDA_POS)
+	PUSH	HL
+	LD	HL,(EF_DLINES-1)*256
+	EX	DE,HL
+EF_SCRCLEAR:
+	CALL	EF_VDASCP
+	LD	E,' '
+	LD	HL,EF_DROWS
+	CALL	EF_VDAFIL
+;
+	POP	HL
+	EX	DE,HL
+	CALL	EF_VDASCP
+	RET
+;
+EF_SCRDOWN:
+	XOR	A
+	LD	HL,(EF_VDA_OFFSET)
+	LD	DE,$FF00
+	ADD	HL,DE
+	LD	A,$FF
+	CP	H
+	JR	NZ,EF_SCRDOWN0
+	LD	H,EF_DLINES-1
+EF_SCRDOWN0:
+	LD	(EF_VDA_OFFSET),HL
+	LD	A,(EF_CON_BANKY)
+	ADD	A,FIRSTLINE
+	ADD	A,H
+	LD	E,A
+	LD	D,EF_RORREG
+	CALL	EF_LOAD_INDIR
+; fill exposed line
+	LD	HL,(EF_VDA_POS)
+	PUSH	HL
+	LD	DE,0
+;	JR	EF_SCRCLEAR
+	CALL	EF_VDASCP
+	LD	E,' '
+	LD	HL,EF_DROWS
+	CALL	EF_VDAFIL
+;
+	POP	HL
+	EX	DE,HL
+	CALL	EF_VDASCP
+	RET
+;
+EF_VDARDC:
+; READ CHARACTER AT CURRENT VIDEO POSITION
+; ENTRY: C = VIDEO UNIT
+; RETURN: A = STATUS, E = CHARACTER, B = CHARACTER COLOR, C = CHARACTER ATTRIBUTES, L = CHARACTER TYPESET, 40X24 ONLY
+#IF (EF_SIZE = V80X24)
+	LD	D,EF_R0
+	LD	A,EF_KRL		; R0 KRL COMMAND NO AUTOINC
+	OR	EF_RREG
+	LD	E,A
+	CALL	EF_WWRREG
+	LD	D,EF_R3 + EF_EXEC	; READ ATTRIBUTES
+	CALL	EF_RDREG
+	LD	C,A
+	CALL	EF_WAITRDY
+	LD	D,EF_R1+EF_EXEC
+	CALL	EF_RDREG
+	PUSH	DE
+; READ COLOR
+	LD	D,EF_DORREG		; LOAD FG COLOR
+	CALL	EF_READ_INDIR
+	AND	$07
+	LD	B,A
+	LD	D,EF_MATREG		; LOAD BG COLOR
+	CALL	EF_READ_INDIR
+	RLCA
+	RLCA
+	RLCA
+	RLCA
+	AND	$70
+	OR	B
+	LD	B,A
+	POP	DE
+	XOR	A
+;	LD	L,A
+	RET
+#ENDIF
+#IF (EF_SIZE = V40X24)
+	LD	D,R0
+	LD	A,KRF			; R0 KRL COMMAND NO AUTOINC
+	OR	EF_RREG
+	LD	E,A
+	CALL	EF_WWRREG
+	LD	D,EF_R3 + EF_EXEC	; READ CHARACTER ATTRIBUTES
+	CALL	EF_RDREG
+	AND	$77
+	LD	B,A
+	RLC	B
+	RLC	B
+	RLC	B
+	RLC	B
+	LD	A,E
+	AND	$88
+	LD	C,A
+	LD	D,EF_R2 + EF_EXEC	; READ CHARACTER TYPESET
+	CALL	EF_RDREG
+	LD	L,A
+	LD	D,EF_R1+EF_EXEC		; READ CHARACTER
+	CALL	EF_RDREG
+	XOR	A
+	RET
+#ENDIF
+;
+EF_IDAT:
+	.DB	KBDMODE_NONE	; PS/2 8242 KEYBOARD CONTROLLER
+	.DB	0
+	.DB	0
+;
+EF_VDA_POS	.DW	0
+EF_CURPOS	.DW	0
+EF_CPYCNT	.DB	0
+EF_VDA_OFFSET	.DW	0
+EF_CON_BANKY	.DB	0
+EF_VDAATTR	.DB	0		; CHARACTER ATTRIBUTES
+EF_VDACATTR	.DB	0		; CURSOR ATTRIBUTES
+EF_VDACOLOR	.DB	0		; CHARACTER COLOR
+#IF (EF_SIZE = V40X24)
+EF_VDATYPESET	.DB	0		; 40 CHAR/ROW PARAMETER
+#ENDIF
+EF_BUF:
+#IF (EF_SIZE = V80X24)
+	.FILL	EF_DLINES*EF_DROWS	;256,0	; COPY BUFFER
+#ENDIF
+#IF (EF_SIZE = V40X24)
+	.FILL 2*EF_DLINES*EF_DROWS	;512,0
+#ENDIF
diff --git a/Source/HBIOS/hbios.asm b/Source/HBIOS/hbios.asm
index 802a65f6..352b3965 100644
--- a/Source/HBIOS/hbios.asm
+++ b/Source/HBIOS/hbios.asm
@@ -3368,6 +3368,9 @@ HB_INITTBL:
 #IF (SCONENABLE)
 	.DW	SCON_INIT
 #ENDIF
+#IF (EFENABLE)
+	.DW	EF_INIT
+#ENDIF
 #IF (VRCENABLE)
 	.DW	VRC_INIT
 #ENDIF
@@ -6467,6 +6470,15 @@ SIZ_SCON	.EQU	$ - ORG_SCON
 		.ECHO	" bytes.\n"
 #ENDIF
 ;
+#IF (EFENABLE)
+ORG_EF		.EQU	$
+  #INCLUDE "ef.asm"
+SIZ_EF		.EQU	$ - ORG_EF
+		.ECHO	"EF occupies "
+		.ECHO	SIZ_EF
+		.ECHO	" bytes.\n"
+#ENDIF
+;
 #IF (GDCENABLE)
 ORG_GDC	.EQU	$
   #INCLUDE "gdc.asm"
diff --git a/Source/HBIOS/hbios.inc b/Source/HBIOS/hbios.inc
index a45a960a..cb573649 100644
--- a/Source/HBIOS/hbios.inc
+++ b/Source/HBIOS/hbios.inc
@@ -320,6 +320,7 @@ CIODEV_LPT	.EQU	$0B
 CIODEV_ESPCON	.EQU	$0C
 CIODEV_ESPSER	.EQU	$0D
 CIODEV_SCON	.EQU	$0E
+CIODEV_EF	.EQU	$0F
 ;
 ; SUB TYPES OF CHAR DEVICES
 ;
@@ -369,6 +370,7 @@ VDADEV_GDC	.EQU	$02		; GRAPHICS DISPLAY CTLR - UPD7220
 VDADEV_TMS	.EQU	$03		; N8 ONBOARD VDA SUBSYSTEM - TMS 9918
 VDADEV_VGA	.EQU	$04		; ECB VGA3 - HITACHI HD6445
 VDADEV_VRC	.EQU	$05		; VGARC
+VDADEV_EF	.EQU	$06		; EF9345
 ;
 ; SOUND DEVICE IDS
 ;
diff --git a/Source/HBIOS/std.asm b/Source/HBIOS/std.asm
index 3db770f5..3a7e8473 100644
--- a/Source/HBIOS/std.asm
+++ b/Source/HBIOS/std.asm
@@ -463,12 +463,13 @@ TERMENABLE	.EQU	FALSE		; TERM PSEUDO DEVICE, WILL AUTO-ENABLE IF A VDA IS ENABLE
 ; VIDEO MODES
 ;
 V80X24		.EQU	0	; ECB-VDU
-V80X25		.EQU	1	; ECB-VDU, ECB-VGA3
+V80X25		.EQU	1	; ECB-VDU, ECB-VGA3, EF9345
 V80X30		.EQU	2	; ECB-VDU, ECB-VGA3
 V80X25B		.EQU	3	; ECB-VDU
 V80X24B		.EQU	4	; ECB-VDU
 V80X43		.EQU	5	; ECB-VGA3
 V80X60		.EQU	6	; ECB-VGA3
+V40X24		.EQU	7	; EF9345
 ;
 ; KEYBOARD LAYOUTS
 ;
diff --git a/Source/ver.inc b/Source/ver.inc
index 85b6bfe6..8a05539f 100644
--- a/Source/ver.inc
+++ b/Source/ver.inc
@@ -2,7 +2,7 @@
 #DEFINE	RMN	5
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.5.0-dev.8"
+#DEFINE BIOSVER	"3.5.0-dev.9"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP
diff --git a/Source/ver.lib b/Source/ver.lib
index d197b6ef..aa909cdc 100644
--- a/Source/ver.lib
+++ b/Source/ver.lib
@@ -3,5 +3,5 @@ rmn	equ	5
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.5.0-dev.8"
+	db	"3.5.0-dev.9"
 	endm