Since the image for this ROM has not been obtained, a small “helper” ROM is loaded at address 0xC000, in addition to the 4.0C Monitor at 0圎000. In the 48K configuration on a real Vector MZ system, an older version of the monitor ROM was at address 0xC000. Some boot disk images require a 48K configuration, and some require a 56K configuration. The simulator can be configured for a 48K Vector MZ or a 56K Vector MZ. When using the Micropolis FD Controller board, you should use the 4.0C Monitor. Generally, when using the HD-FD disk controller, you will need to use Monitor 4.3, since it supports booting from this controller. One of these monitors should be loaded at address 0圎000, depending on the simulated system configuration.
#IMSAI 8080 EMULATOR SERIAL#
The 4.0C Monitor uses the simulated serial port for I/O, and the 4.3 Monitor uses the Flashwriter2 video card for output and a simulated parallel keyboard for input. In addition to the new devices added to SIMH/AltairZ80, additional ROM images are provided for the Vector 4.0C Monitor and the Vector 4.3 Monitor. If there is an I/O or memory map conflict when enabling a device, the conflicting device must first be disabled. These devices can be enabled/disabled (installed/uninstalled) from the memory map with: VFDHD – Vector HD-FD Controller Board, I/O Mapped to 0xC0-0xC3įWII – Flashwriter 2 Video Card, memory mapped to 0xF000-0xF800 MDSK – Micropolis FD Controller Board, memory mapped to 0xF800-0xFBFF These additional devices specific to the Vector Graphic systems include:
#IMSAI 8080 EMULATOR INSTALL#
The architectural modifications include the ability to install and uninstall devices in the simulator’s memory and I/O map at runtime, and pave the way for further extension of SIMH/AltairZ80 to support other hardware with a minimum of integration effort. The Vector Graphic simulation was realized by making several architectural modifications to support additional disk controllers and the Flashwriter2 video card. The following are links to resources and information about the Vector Graphic computer systems: Vector Graphic has a small but active user community.
#IMSAI 8080 EMULATOR SOFTWARE#
When combined with the Flashwriter, the Vector Graphic MEMORITE software gave low cost word processing capability which had previously only been available with dedicated word processors. Vector Graphic is commonly known for their MEMORITE word processing application. Vector Graphic computers had many innovations such as the Flashwriter integrated video and keyboard controller. Some models included 8" floppy drives and hard disk drives. Almost all used unusual 100 track per inch 5.25" floppy drives and 16 sector 5.25" hard sector media. Later models were designed with the integrated Floppy Drive/Hard Drive controller and used Tandon floppy drives. Although primarily used with the CP/M operating system, it ran several others including OASIS, Micropolis Disk Operating System (MDOS), and Micropolis Z80 Operating System (MZOS).Įarly Vector Graphic models used the Micropolis floppy disk controller and Micropolis floppy disk drives.
There were several Vector Graphic models produced. Harte, Graphic is a early microcomputer from the mid 1970's, based on the S-100 bus using the Z80 microprocessor.
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