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-
- *************************************************************************
- * PLEASE READ THE 'INSTALL' FILE BEFORE INSTALLING *
- * THIS VERSION OF THE PC CARD SOFTWARE *
- *************************************************************************
-
- Release note v1.87g
- ===================
-
- This document contains the latest information on the RISC-PC 486 Card and
- its software.
-
- This code will only run on the Acorn Risc PC 486 co-processor card, or an
- Aleph One co-processor card.
-
- Contents
- --------
- This floppy contains the following items:
- !PC486 - the application needed to drive the PC 486 card.
- !PCConfig - an application to set options for the PC 486 Card.
- Readme - This file which contains the latest information on the PC 486 Card
- DOSFS - Module allowing access to DOS partitions bigger than 32Mb
- Device Drivers:
- AMOUSE/COM - a simple DOS bus-mouse driver.
- CDROM - directory containing a DOS PC card CDROM device driver and info.
- Windows - directory containing Windows driver and Windows Setup file
-
-
- Parallel & serial port use
- --------------------------
- The PC card can use the Risc PC's parallel and serial ports. To do this
- you need to turn on the 'DirectParallel' or 'DirectSerial' options in
- !PCConfig. Printing to a printer plugged into the Risc PC will work without
- setting DirectParallel on.
-
- When one of these options is on, the specified port is taken over completely
- for bi-directional use by the PC card and thus cannot be used by RISCOS until
- you quit from !PC.
-
- There is currently a problem with the serial port in that after quitting !PC
- (using DirectSerial), the serial port remains inacessible until you do an
- RMreinit SerialDeviceDriver. This is now on the end of the !Run file for you
- to enable if it causes you problems.
-
- Do not use the printer Re-direction (RISCOSPrinter) & Directparallel options
- at the same time. You are likely to get no printer output at all, as the data
- cannot go to two places at once.
-
-
- Problems with TurboDrivers
- --------------------------
- The PC Card printer mechanisms interact with Computer Concepts Turbodrivers
- in ways that can cause problems.
-
- 1. If you have a turbodriver cable and use directparallel to print with, then
- everything will be completely garbled by the cable, as the data does not get
- appropriately pre-scrambled by the turbodriver modules (DirectParallel
- bypasses them). You must either change the cable for PC printing (eg with a
- dataswitch) or not use directparallel and turbodrivers.
-
- 2. If you use the RISCOSPrinter redirection, then everything works but can go
- very slowly, becasue !PC prints a byte at a time, and this causes the
- turbodrivers to work very inefficiently. There are a number of things which
- can be done to minimise these problems until a proper software solution is
- available.
-
- The current release version of the Turbodrivers (4.03) is supplied with
- !PrintQFS 0.43. This does not have the extra buffering to speed up single
- byte writes. CC can supply a newer version of !PrintQFS (0.45) which
- includes some extra buffering (EMail(prefered)/fax/write to Gerald Isles at
- CC). mailto:gerry@cconcepts.co.uk
-
- The best way to print is to set the PC driver to print
- to FILE: (set the file to C:\PRINTOUT) and once it has finished,
- return to the desktop, freeze the PC and run the following basic
- program...
-
- REM >PrintPC
- partition$="<Diva$Dir>.^.HardDisc_C" :REM or whatever
- file$="PRINTOUT"
- SYS "OS_FSControl",26,partition$+"."+file$,"printer:",2
- END
-
- This will copy the printout file to the RiscOS printer stream. You
- should have a TurboDriver selected.
-
- Alternatively, if this is irritatingly complex, the throughput can be
- increased by pausing the TurboDriver queue until all the data has
- been transfered (Alt-select on the TurboDriver icon followed by
- adjust on the 'Queue...' button then hit the 'Pause queue' button).
-
-
- Monitor Modes
- -------------
- Mode 27 is used for VGA: 640x480x16 display in DOS
- Mode 31 is used for SVGA 800x600x16 display in DOS. (DOS mode 6Ah).
-
- Note that the default definitions of these modes for the AKF65 monitor
- gives a slow refresh rate and thus a very flickery display. We recommend that
- you edit the monitor definition file to give a better display.
-
- Games which use strange-shaped screen modes attempt to use the Risc PC's
- mode-descriptor feature to select full screen modes; this should allow people
- to write their own modes to fit these. Only attempt this if you understand
- what you are doing.
-
- This forced multi-tasking is also often caused by software which tries to
- generate illegal video modes (non-CGA/EGA/VGA). Note that the biggest VGA
- mode is 640x480x16. DOS Software which needs more pixels or colour than this
- will not run (except 800x600x16 using VESA support).
-
- These are the modes supported by the PC Card software. The host system will
- not be able to display modes beyond 10h if you do not have a VGA-standard
- monitor (eg A300, A400 systems)
-
- Standard DOS modes
-
- Mode 0 (CGA/EGA/VGA) 40*25 text
- Mode 1 (CGA/EGA/VGA) 40*25 text
- Mode 2 (CGA/EGA/VGA) 80*25 text
- Mode 3 (CGA/EGA/VGA) 80*25 text
- Mode 4 (CGA/EGA/VGA) 320*200 4-colour graphics
- Mode 5 (CGA/EGA/VGA) 320*200 4-colour graphics
- Mode 6 (CGA/EGA/VGA) 640*200 mono graphics
- Mode 7 (Mono/EGA/VGA) 80*25 text
-
- Modes 8-0Ch aren't officially defined
-
- Mode 0Dh (EGA/VGA) 320*200 16-colour graphics
- Mode 0Eh (EGA/VGA) 640*200 16-colour graphics
- Mode 0Fh (EGA/VGA) 640*350 mono graphics
- Mode 10h (EGA/VGA) 640*350 16-colour graphics
- Mode 11h (VGA) 640*480 mono graphics
- Mode 12h (VGA) 640*480 16-colour graphics
- Mode 13h (VGA) 320*200 256-colour graphics
-
- SuperVGA modes
-
- Mode 6Ah (SVGA) 800*600 16-colour graphics
-
-
- Odd modes
-
- 360 x 480, 256-colours (obtained by messing around with VGA registers)
-
- On RISCOS 3.5, will also support other modes obtained by messing round
- with VGA regs, provided they are supported by the display & fit into one
- of the following categories:
-
- 16-colour graphics, using 4 video planes as VGA, up to 524288 pixels
- 256-colour graphics, based on mode 13h, up to 65536 pixels
- 256-colour graphics using Plane Mask / Read Plane Select registers
- (as 360x480x256 mode), up to 262144 pixels
-
- "Messing round with the VGA regs" is a highly moveable target, so
- there will still be some software that will not work.
-
-
- Windows 95
- ----------
- This is not yet officially supported but can be persuaded to install and run.
-
- On installation you must select the custom install and disable the checking
- for CDROMs and PCMCIA support.
-
- On startup the banner screen uses a 320x400x16 display. There is no standard
- RISC OS mode of this shape, so the PC Card will revert to multi-tasking
- unless you define an appropriate mode:
-
- # Modefile written by !MakeModes version 0.27 (21st December 1994)
- #
- # Add this definition to your existing mode file to prevent Windows 95 switching
- # to multi-tasking mode.
-
- # 320 x 400 (71Hz)
- startmode
- mode_name:320 x 400
- x_res:320
- y_res:400
- pixel_rate:12750
- h_timings:24,32,2,320,28,0
- v_timings:3,28,0,400,0,9
- sync_pol:3
- endmode
-
- There are still a couple of bugs in the windows driver: icons come up in odd
- colours and some are 'stripy'.
-
- Windows Drivers:
- ----------------
- The windows driver now support 4,8,16,& 32 bits per pixel, and palette
- control in 256 colour modes. The extra modestrings that are permitted
- are detailed in the Win_readme file.
-
- If Windows starts up, and then after the banner, flashes a message on the
- screen before returning to DOS, then you are using a version of ARMDRV that
- is too early for the version of !PC you are running. Re-install it as
- detailed in the Win_readme file.
-