build on the target board under CP/M 2 or 3
tools needed:
RMAC.COM
LINK.COM -- make sure this is version 1.31
GENCPM.COM
PPIP.COM

system files needed:
BNKBDOS3.SPR
RESBDOS3.SPR
(GENCPM.DAT)		; previous default system settings

instructions:
RMAC BIOSKRNL		; assemble bios source files
RMAC BOOT
RMAC CHARIO
RMAC DISK
RMAC DRVTBL
RMAC MOVE
RMAC SCB
LINK BNKBIOS3[B]=BIOSKRNL,SCB,BOOT,CHARIO,MOVE,DRVTBL,DISK	; make
								; BNKBIOS3.SPR

in CP/M 2 this dumps you back into the monitor, but it worked anyway.
I haven't yet been able to figure out why this is...

GENCPM 			; or GENCPM AUTO to accept GENCPM.DAT defaults

Copy the resulting CPM3.SYS to userspace 0 of volume 3

when using gencpm.com set dirhashing for A:, B: & C: to N(o)
when you forget this, CP/M cannot close files and the directories
are not showing all files. 
