OS/A65 Building Procedure

Building the object files for use on a CS/A65 machine should really be only a make. If there weren't these many options one can change.

kernel options in oa1/oa1.a65:

ROM		without ROM all options are set global or somewhere else
ROMTEST		with ROMTEST the MMU is not loaded, but the contents of
		the MMU registers secured with GETBLK. also memory is
		not tested (to test a new system ROM)
CMOSCPU		for (Rockwell) CMOS CPU
NOMMU		system for a computer without MMU 
NOSYSPORT	system has no SYSPORT (at $efe0)
NOSINPORT	system has no SYSPORT, but LED is driven, if a board is
		plugged in
NOENVIRQ	to build system where tasks cannot have an own irq routine
BATMEM		main memory is nor erased at memory test (for battery buffered
		RAM)
NOMIRRORMEM	if the memory chip is definitely not mirrored, one can 
		disable the test for this
CLK2MHZ		if NOSYSPORT, the CPU clock has to be set here
NMIDEV		enables NMI routine (only without MMU)


shell options in oash/sh.a65:

SHORTMON	no assembler/disassembler in monitor
NOSYSFKT	no file/system calls in monitor
NOMON		no monitor
NOSH		no shell
NOPRG		without PRG header


fsiec options in oafs/fsiec.a65

INVERT		parallel IEEE488 port output lines are inverted
PARALLEL	do it for IEEE488 interface, not serial interface
NOCMD		do not interpret other fs commands than FS_OPEN_*
NOFS		do not register as fs - listen on bus only
NOLOOP		do not listen on bus - register as fs only
STDTST		include STDIO lib if needed.
NOPRG		without PRG header

All these options can be set in stdrom/rom.a65, as there ROM is defined also. This way all local defines are ignored.