Files
Digital-Research-Source-Code/CPM OPERATING SYSTEMS/CPM 3.X/CPM 3.0/3ON2/-CPM3ON2.NOT
Sepp J Morris 31738079c4 Upload
Digital Research
2020-11-06 18:50:37 +01:00

63 lines
2.5 KiB
Plaintext
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

*** BAMDUA SPECIAL SERIES ***
FOR EXPERIENCED DEVELOPERS ONLY vol.DV6
Morrow MD DSDD - Smith Disk 6 of 10
________________________________________
Bill's Drive A2: Generic CP/M+ for CP/M2
w/ GEN.SUB Copyright Bill Smith
note: the files on this -- user area/library/disk --
are property of bill smith, not Morrow Designs,
Copyright Bill Smith 1985 All Rights Reserved
Files 31/188k
BDOS3 .SPR 10k JNK .COM 4k
BIOS3 .SPR 2k LDRBIOS .ASM 14k
BIOS3 .SYM 2k LDRBIOS .REL 2k
CCP .COM 4k LDRBIOS .SYM 2k
CPM2 .COM 2k LIB .COM 8k
CPM3 .SYS 10k LINK .COM 16k
CPMLDR .COM 4k R .COM 0k
CPMLDR .REL 4k READ .ME 2k
CPMLDR .SYM 2k RMAC .COM 14k
DATE .COM 4k SBIOS .ASM 4k
DUMMY .REL 2k SCB .ASM 2k
GBIOS .ASM 14k SCB .REL 2k
GBIOS .SYM 2k SCB .SYM 2k
GEN .SUB 2k SID .COM 8k
GENCPM .COM 22k XREF .COM 16k
HBIOS .ASM 6k
PROGRAM ID:
GBIOS3.ASM
GENERIC LOADER AND BIOS FOR CP/M PLUS
FOR CP/M-80 V2.2 SYSTEMS UNBANKED NO HASHING
BIOS PERFORMS BLOCKING/DEBLOCKING
ORGANIZATIONAL COMMENTARY
This BIOS is designed to be the user's first step
in making an upgrade from CP/M-80 v2.2 to CP/M Plus v3.0.
This BIOS will function properly in most CP/M-2 systems,
even those with the BIOS in PROM.
FUNCTION:
This PROGRAM implements an UNBANKED, NON-HASHED,
UNBUFFERED BIOS for CP/M Plus version 3.0.
METHOD:
CP/M Plus allows many levels of sophistocation in
the implementation of the BIOS. At the highest levels,
the BIOS allows CP/M Plus to manage a potentially large
memory pool which acts like an instant access disk drive,
a substantial performence enhancement. At the lowest level,
the performance of CP/M Plus is the same as that of CP/M-80
version 2.2. This interface program is a simple implementation
of a CP/M Plus BIOS which operates as a parasite to the user's
existing BIOS for CP/M-80 version 2.2.
PURPOSE:
This BIOS allows the CP/M-80 v2.2 user to easily
upgrade to CP/M Plus v3.0 and enjoy its logical enhancements
at the same level of performance he has enjoyed with v2.2.
This BIOS can be an end-point since system performance
will be satisfactory. For users who own the hardware
required to implement hashing and buffering, this BIOS
will serve as a welcome starting point for further enhancement.