System-5 HBIOS (Hardware BIOS)
This code handles the video and keyboard I/O required by Mike’s BIOS (see below). Startup jumps to minimon section of BIOS.
Source: sec1.asm
Makefile: Makefile (assumes Mike’s BIOS is in subdirectory called orig_bios)
Changes required to Mike Riley’s BIOS (version 0.9)
Changes to BIOS are marked with conditional compilation using #DEFINE KSR
Source: bios.asm
Include: bios.inc
Makefile: Makefile
Changes required to Mike Riley’s BIOS (version 1.0.4)
Source: bios.asm
Include: bios.inc
Makefile: Makefile
Note: Makefiles require srecord utility – see the Tools Directory