Category : Alternate Operating Systems - Quarterdeck DesqView, CP/M, etc
Archive   : PCCAPP.ZIP
Filename : CONFIG

## This is the PC-Choices configuration file. The kernel parameters are set
## to the values specified in this file when it boots.
##
## Each line in this file should either be a blank line, a comment line
## beginning with "#", or a line of the form PARM=VALUE, which specifies
## the value of a parameter. Parameter values are either Boolean or numeric.
## Valid Boolean values are "yes" and "no". Numeric values may be decimal,
## hexadecimal (indicated by a leading "0x"), or octal (indicated by a leading
## "0"). Lines specifying parameters may be arranged in any order.

################
## Memory Usage
##
## MaxLowMemory is the amount of low memory (ie. in the lower 640K) in K bytes
## to be allocated to PC-Choices. PC-Choices uses low memory for storing
## arguments for DOS and BIOS calls, and for maintaining information about
## 16-bit processes. Setting this value too low will cause PC-Choices to
## run out of memory when calling DOS and BIOS. Setting this value too high
## will prevent you from running large DOS programs when you spawn a DOS shell
## from PC-Choices (via the "dos" command). If MaxLowMemory is not available
## when the kernel boots, a smaller amount of low memory will be used.
## Default: MaxLowMemory = 200

MaxLowMemory = 200

## KernelWorkingMemorySize is the amount of physical memory in K bytes
## to be allocated as the kernel's working memory. The working memory is
## used for storing Choices objects that are created by the kernel. Setting
## this value too low will cause PC-Choices to run out of memory quickly
## and display the message "Store::alloc(): out of memory". Increasing
## this value will cause the amount of application memory to decrease;
## application memory is needed to store an application's binary image.
## Therefore setting the working memory size too high will prevent you
## from running many applications at the same time. Large applications
## may not run properly. It is recommended that the default value should
## always be used, unless PC-Choices is running on a machine with lots of
## memory (say 16 Megs and above), in which case the working memory size
## should be increased. Default: KernelWorkingMemorySize = 1024

KernelWorkingMemorySize = 1024

## Setting DisplayMemoryUsage to "yes" will cause the kernel to print some
## statistics about its memory allocation (eg. kernel system memory, kernel
## working memory, application memory) when it boots. Default:
## DisplayMemoryAllocation = no

DisplayMemoryAllocation = yes

#################
## Hardware Type
##
## The keyboard and timer hardware on IBM PS/2 and PS/55 machines require
## special processing which is enabled when the parameters PS2Keyboard and
## PS2Timer are set to "yes". If you use the IBM PS/2, PS/55 or something
## similar, please change these parameters. Default: PS2Keyboard = no,
## PS2Timer = no.
##
## The technical details: for "PS2Timer = yes", the kernel will
## set bit 7 of the System Control Port B (0x61) after every timer
## interrupt (IRQ0). For "PS2Keyboard = yes", the kernel bootstrapper
## will use System Control Port A (0x92) to enable and disable A20.
## For "PS2Keyboard = no", the kernel bootstrapper will use the keyboard
## controller to toggle A20.

PS2Keyboard = no
PS2Timer = no

########################
## Interrupt Processing
##
## By default, the PC-Choices kernel handles all interrupts. For optimal
## performance, you may configure the kernel so that it handles those
## interrupts that are absolutely necessary, so that the context switching
## frequency will be reduced. For most non-IBM machines, the following
## setting is optimal: IRQ1 (keyboard), IRQ6 (floppy drive) and IRQ14
## (hard drive) on, all others off.
##
## The kernel handles an interrupt by switching into 16-bit mode and calling
## the appropriate 16-bit interrupt vector. For N = 1, 2, ..., 15, set
## "IRQNEnabled = yes" if you want IRQ N to be handled by the kernel. IRQ0
## is handled specially by the kernel and is always enabled. Information
## provided below was obtained from Ralf Brown's interrupt list.

## IRQ1 is generated whenever a key is pressed or released on the keyboard.
## Default: IRQ1Enabled = yes.

IRQ1Enabled = yes

## IRQ2 is generated whenever the EGA or VGA card has completed a vertical
## retrace. It is also generated by the Tandy 1000-series hard disk and
## by the Roland MPU MIDI interface. Default: IRQ2Enabled = yes.

IRQ2Enabled = yes

## IRQ3 is used by the serial communications ports COM2 through COM8 for
## PS/2's, and COM2, COM4 for other PCs. Default: IRQ3Enabled = yes.

IRQ3Enabled = yes

## IRQ4 is used by the serial communications ports COM1 (on most machines)
## and COM3 (except PS/2). Default: IRQ4Enabled = yes.

IRQ4Enabled = yes

## IRQ5 is generated by the hard drive on the IBM PC, XT. It's used by
## the LPT2 printer on AT-class PCs. Default: IRQ5Enabled = yes.

IRQ5Enabled = yes

## IRQ6 is generated by the floppy drive controller when a disk operation
## has been completed. Default: IRQ6Enabled = yes.

IRQ6Enabled = yes

## IRQ7 is generated by the LPT1 printer adapter when printer becomes ready,
## but most printer adapters do not reliably generate this interrupt.
## The 8259 interrupt controller generates this interrupt in case of error.
## Default: IRQ7Enabled = yes.

IRQ7Enabled = yes

## IRQ8 is called when the real-time clock chip generates an alarm or
## periodic interrupt, among others. Default: IRQ8Enabled = yes.

IRQ8Enabled = yes

## IRQ9 is redirected to the IRQ2 handler by BIOS. Default: IRQ9Enabled
## = yes.

IRQ9Enabled = yes

## IRQ10 is reserved. Default: IRQ10Enabled = yes.

IRQ10Enabled = yes

## IRQ11 is reserved. Default: IRQ11Enabled = yes.

IRQ11Enabled = yes

## IRQ12 is generated by the pointing device. Default: IRQ12Enabled = yes.

IRQ12Enabled = yes

## IRQ13 is called when a math coprocessor exception occurs. Default:
## IRQ13Enabled = yes.

IRQ13Enabled = yes

## IRQ14 is generated by the hard drive controller. Default:
## IRQ14Enabled = yes.

IRQ14Enabled = yes

## IRQ15 is reserved. Default: IRQ15Enabled = yes.

IRQ15Enabled = yes