Add VDA driver for Xosera, an FPGA-based video controller.

Doc/ChangeLog.txt

@@ -1,12 +1,13 @@
 Version 3.6
 -----------
+- RDG: Added VDA driver for Xosera FPGA-based VDC
 - MGG: Added COBOL language disk image
 - WDC: Added config options to PCF driver
 - WBW: Enabled dynamic CPU speed update on LCD screen
 - WBW: Improve LPT driver boot messaging when not detected (per Robb Bates)
 - WBW: Correct DS1307 boot date/time display (per Tadeusz Pycio)
 - WBW: Add -DELAY option to TUNE app (per Robb Bates)
-- R?G: Add online documentation site
+- RDG: Add online documentation site
 - WBW: Added enhanced Hi-Tech C Compiler files from Ladislau Szilagyi
 - WBW: Added boundary check to ram/rom disk driver
 

Source/Doc/Hardware.md

@@ -2279,6 +2279,7 @@ the active platform and configuration.
 | VDU       | MC6845 Family Video Display Controller (*)             |
 | VGA       | HD6445CP4-based Video Display Controller               |
 | VRC       | VGARC Video Display Controller                         |
+| XOSERA    | XOSERA FPGA-based Video Display Controller             |
 
 Note:
 

Source/Doc/Introduction.md

@@ -41,7 +41,7 @@ Supported hardware features of RomWBW include:
 * Banked memory services for several banking designs
 * Disk drivers for RAM, ROM, Floppy, IDE ATA/ATAPI, CF, SD, USB, Zip, Iomega
 * Serial drivers including UART (16550-like), ASCI, ACIA, SIO
-* Video drivers including TMS9918, SY6545, MOS8563, HD6445
+* Video drivers including TMS9918, SY6545, MOS8563, HD6445, Xosera
 * Keyboard (PS/2) drivers via VT8242 or PPI interfaces
 * Real time clock drivers including DS1302, BQ4845
 * Support for CP/NET networking using Wiznet, MT011 or Serial
@@ -324,7 +324,9 @@ please let me know if I missed you!
 
 * Les Bird has contributed support for the NABU w/ Option Board
 
-* Rob Gowin created an online documentation site via MkDocs.
+* Rob Gowin created an online documentation site via MkDocs, and
+  contributed a driver for the Xosera FPGA-based video
+  controller.
 
 `\clearpage`{=latex}
 

Source/Doc/SystemGuide.md

@@ -1756,14 +1756,17 @@ All video units are assigned a Device Type ID which indicates
 the specific hardware device driver that handles the unit.  The table
 below enumerates their values.
 
-| **Device Type** | **ID** | **Description**                          | **Driver** |
-|-----------------|-------:|------------------------------------------|------------|
-| VDADEV_VDU      | 0x00   | MC6845 Family Video Display Controller   | vdu.asm    |
-| VDADEV_CVDU     | 0x01   | MC8563-based Video Display Controller    | cvdu.asm   |
-| VDADEV_GDC      | 0x02   | uPD7220 Video Display Controller         | gdc.asm    |
-| VDADEV_TMS      | 0x03   | TMS9918/38/58 Video Display Controller   | tms.asm    |
-| VDADEV_VGA      | 0x04   | HD6445CP4-based Video Display Controller | vga.asm    |
-| VDADEV_VRC      | 0x05   | VGARC                                    | vrc.asm    |
+| **Device Type** | **ID** | **Description**                            | **Driver** |
+|-----------------|-------:|--------------------------------------------|------------|
+| VDADEV_VDU      | 0x00   | MC6845 Family Video Display Controller     | vdu.asm    |
+| VDADEV_CVDU     | 0x01   | MC8563-based Video Display Controller      | cvdu.asm   |
+| VDADEV_GDC      | 0x02   | uPD7220 Video Display Controller           | gdc.asm    |
+| VDADEV_TMS      | 0x03   | TMS9918/38/58 Video Display Controller     | tms.asm    |
+| VDADEV_VGA      | 0x04   | HD6445CP4-based Video Display Controller   | vga.asm    |
+| VDADEV_VRC      | 0x05   | VGARC                                      | vrc.asm    |
+| VDADEV_EF       | 0x06   | EF9345                                     | ef.asm     |
+| VDADEV_FV       | 0x07   | S100 FPGA VGA                              | fv.asm     |
+| VDADEV_XOSERA   | 0x08   | Xosera FPGA-based Video Display Controller | xosera.asm |
 
 Depending on the capabilities of the hardware, the use of colors and
 attributes may or may not be supported. If the hardware does not support

Source/HBIOS/Config/RCZ80_xosera.asm

@@ -0,0 +1,54 @@
+;
+;==================================================================================================
+;   ROMWBW CUSTOM USER BUILD SETTINGS EXAMPLE FOR RCBUS Z80
+;==================================================================================================
+;
+; THIS FILE IS AN EXAMPLE OF A CUSTOM USER SETTINGS FILE.  THESE
+; SETTINGS OVERRIDE THE DEFAULT SETTINGS OF THE INHERITED FILES AS
+; DESIRED BY A USER.
+;
+; ROMWBW USES CASCADING CONFIGURATION FILES AS INDICATED BELOW:
+;
+; cfg_MASTER.asm			- MASTER: CONFIGURATION FILE DEFINES ALL POSSIBLE ROMWBW SETTINGS
+; |
+; +-> cfg_<platform>.asm		- PLATFORM: DEFAULT SETTINGS FOR SPECIFIC PLATFORM
+;     |
+;     +-> Config/<plt>_std.asm		- BUILD: SETTINGS FOR EACH OFFICIAL DIST BUILD
+;         |
+;         +-> Config/<plt>_<cust>.asm	- USER: CUSTOM USER BUILD SETTINGS
+;
+; THE TOP (MASTER CONFIGURATION) FILE DEFINES ALL POSSIBLE ROMWBW
+; CONFIGURATION SETTINGS. EACH FILE BELOW THE MASTER CONFIGURATION FILE
+; INHERITS THE CUMULATIVE SETTINGS OF THE FILES ABOVE IT AND MAY
+; OVERRIDE THESE SETTINGS AS DESIRED.
+;
+; OTHER THAN THE TOP MASTER FILE, EACH FILE MUST "#INCLUDE" ITS PARENT
+; FILE (SEE #INCLUDE STATEMENT BELOW).  THE TOP TWO FILES SHOULD NOT BE
+; MODIFIED.
+;
+; THIS FILE EXEMPLIFIES THE IDEAL WAY TO CREATE A USER SPECIFIC BUILD
+; CONFIGURATION.  NOTICE THAT IT INCLUDES THE DEFAULT BUILD SETTINGS
+; FILE AND OVERRIDES SOME DESIRED SETTINGS.
+;
+; BY CREATING A CUSTOM USER SETTINGS FILE, YOU ARE LESS LIKELY TO BE
+; IMPACTED BY FUTURE CHANGES BECAUSE YOU WILL BE INHERITING MOST
+; OF YOUR SETTINGS WHICH WILL BE UPDATED BY AUTHORS AS ROMWBW EVOLVES.
+;
+; PLEASE REFER TO THE CUSTOM BUILD INSTRUCTIONS (README.TXT) IN THE
+; SOURCE DIRECTORY (TWO DIRECTORIES ABOVE THIS ONE).
+;
+; *** WARNING: ASIDE FROM THE MASTER CONFIGURATION FILE, YOU MUST USE
+; ".SET" TO OVERRIDE SETTINGS.  THE ASSEMBLER WILL ERROR IF YOU ATTEMPT
+; TO USE ".EQU" BECAUSE IT WON'T LET YOU REDEFINE A SETTING WITH ".EQU".
+;
+; THIS FILE ENABLES THE XOSERA DRIVER WITH A BASE ADDRESS Of 0XE0
+; AND DISPLAY SIZE OF 80 COLUMNS X 30 ROWS
+;
+#INCLUDE "Config/RCZ80_std.asm"		; INHERIT FROM OFFICIAL BUILD SETTINGS
+;
+XOSENABLE	.SET	TRUE		; XOSERA: ENABLE XOSERA VIDEO DRIVERS (XOSERA.ASM)
+XOS_BASE	.SET	$20		; XOSERA: I/O BASE ADDRESS (REQUIRES 32 BYTES)
+XOSSIZ		.SET	V80X30		; XOSERA: DISPLAY FORMAT [V80X30|V80X60]
+;
+AUTOCON		.SET	FALSE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
+VDAEMU_SERKBD	.SET	$0		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD

Source/HBIOS/cfg_MASTER.asm

@@ -311,6 +311,9 @@ 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)
 FVENABLE	.EQU	FALSE		; FV: ENABLE FPGA VGA VIDEO DRIVER (FV.ASM)
+XOSENABLE	.EQU	FALSE		; XOSERA: ENABLE XOSERA VIDEO DRIVERS (XOSERA.ASM)
+XOS_BASE	.EQU	$20		; XOSERA: I/O BASE ADDRESS (REQUIRES 32 BYTES)
+XOSSIZ		.EQU	V80X30		; XOSERA: DISPLAY FORMAT [V80X30|V80X60]
 ;
 MDENABLE	.EQU	TRUE		; MD: ENABLE MEMORY (ROM/RAM) DISK DRIVER (MD.ASM)
 MDROM		.EQU	TRUE		; MD: ENABLE ROM DISK

Source/HBIOS/hbios.asm

@@ -3955,6 +3955,9 @@ HB_PCINITTBL:
 #IF (PIO_4P | PIO_ZP)
 	.DW	PIO_PREINIT
 #ENDIF
+#IF (XOSENABLE)
+	.DW	XOS_PREINIT
+#ENDIF
 ;
 HB_PCINITTBLLEN	.EQU	(($ - HB_PCINITTBL) / 2)
 ;
@@ -4090,6 +4093,9 @@ HB_INITTBL:
 #IF (SCONENABLE)
 	.DW	SCON_INIT
 #ENDIF
+#IF (XOSENABLE)
+	.DW     XOS_INIT
+#ENDIF
 #IF (LPTENABLE)
 	.DW	LPT_INIT
 #ENDIF
@@ -8831,6 +8837,7 @@ PS_VDVGA	.TEXT	"VGA$"
 PS_VDVRC	.TEXT	"VRC$"
 PS_VDEF		.TEXT	"EF$"
 PS_VDFV		.TEXT	"FV$"
+PS_VDXOSERA	.TEXT	"XOSERA$"
 ;
 ; VIDEO TYPE STRINGS
 ;
@@ -9168,6 +9175,15 @@ SIZ_FV	.EQU	$ - ORG_FV
 		MEMECHO	" bytes.\n"
 #ENDIF
 ;
+#IF (XOSENABLE)
+ORG_XOS	.EQU	$
+  #INCLUDE "xosera.asm"
+SIZ_XOS	.EQU	$ - ORG_XOS
+		MEMECHO "XOS occupies "
+		MEMECHO SIZ_XOS
+		MEMECHO " bytes.\n"
+#ENDIF
+;
 #IF (DMAENABLE)
 ORG_DMA	.EQU	$
 #INCLUDE "dma.asm"

Source/HBIOS/hbios.inc

@@ -450,6 +450,7 @@ VDADEV_VGA	.EQU	$04		; ECB VGA3 - HITACHI HD6445
 VDADEV_VRC	.EQU	$05		; VGARC
 VDADEV_EF	.EQU	$06		; EF9345
 VDADEV_FV	.EQU	$07		; S100 FPGA VGA
+VDADEV_XOSERA	.EQU	$08		; XOSERA RCBUS
 ;
 ; SOUND DEVICE IDS
 ;