*** 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.