This disk contains the source code for the BIOS routines for CP/M 3. You will also need a standard CP/M 3 system to use these routines to produce your own system configuration. Instructions on constructing a CP/M 3 BIOS are contained in CP/M Plus System Guide Manual. The files are as follows: ATLAS.MAC the EPROM bootstrap code. LDRBIOS.MAC the BIOS routines for the CP/M loader program. BOOT.ASM, CHARIO.ASM, TIME.ASM, DRVTBL.ASM, FDPH.ASM, FLOPPY.MAC and MEMORY.MAC contain the source code of the machine dependent part of the BIOS. In Version 1.4 and previous versions of the SCPUA BIOS the label ?SCPU is called ?ATLAS. Replace the two instances of ?SCPU in MEMORY.MAC by ?ATLAS if your CP/M logon message gives a version number less than 1.5 . TIMES.ASM contains time and date routine for use with the Arcom SCRAM clock and RAM card. This routine replaces that in file TIME.ASM. COPY.MAC contains the source code for program COPY. DISKFORM.MAC contains the source code for program DISKFORM. DRBIOS.MAC contains the source code for the resident system extension routine that is required by programs DISKCOPY and SYSCOPY. DISKCOPY.MAC contains the source code for program DISKCOPY. SYSCOPY.MAC contains the source code for program SYSCOPY. All the programs are copyrighted. The purchaser is permitted to make copies for his own use and to modify the programs in any way he wishes. Arcom cannot provide any support or advice on non-standard configurations.