Driver:Heathkit - Revision history

Mgarlanger: /* 8-bit Heathkit Computers */

2025-02-07T05:07:29Z

8-bit Heathkit Computers

← Older revision		Revision as of 07:07, 7 February 2025
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	=== H-89 with SigmaSoft IGC ===		=== H-89 with SigmaSoft IGC ===

	This system was removed since it is now possible to add the IGC to any of the h89 systems with the addition of the SigmaSoft Parallel Port with IGC ~~connection~~ and one of the igc options for the ''tlbc'' as defined above in the h89 section.		This system was removed since it is now possible to add the IGC to any of the h89 systems with the addition of the SigmaSoft Parallel Port with IGC card ''ss_parallel_igc'' installed in one of the left slots and one of the igc options for the ''tlbc'' as defined above in the h89 section.

	=== H-89 with Magnolia MicroSystems(MMS) (driver name ''h89_mms'') ===		=== H-89 with Magnolia MicroSystems(MMS) (driver name ''h89_mms'') ===

Mgarlanger: /* 8-bit Heathkit Computers */

2025-02-02T08:37:46Z

8-bit Heathkit Computers

← Older revision		Revision as of 10:37, 2 February 2025
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	Heath Company introduced their first digital computers in 1977. This included the H-8, which used the 8-bit 8080 processor, and the H-11, which was compatible with the DEC PDP-11, at a cheaper price. They released the H-89 in 1979, which utilized two Z-80 processors, one for the computer and one for the terminal portion of the system.		Heath Company introduced their first digital computers in 1977. This included the H-8, which used the 8-bit 8080 processor, and the H-11, which was compatible with the DEC PDP-11, at a cheaper price. They released the H-89 in 1979, which utilized two Z-80 processors, one for the computer and one for the terminal portion of the system.


	=== H-8 Computer (driver name ''h8'') ===		=== H-8 Computer (driver name ''h8'') ===
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	The H-8 is currently implemented and supports cassette tape.		The H-8 is currently implemented and supports cassette tape.

	=== H-89 ~~Computer (driver name ''h89'')~~ ===		=== H-89/Z-90 computers ===

			Several drivers are available the H-89 family of computers. The differences between them are which cards are installed, which interrupt controller is selected, and which I/O decoding PROM is used.
			==== History ====
	There is several different versions in the H-89 family of computers. Originally, 3 models were available: the H-88, H-89, and WH-89. The H-88 had a cassette interface board and no floppy drive (or controller). The H-89 added the hard-sectored controller and a single-sided floppy drive with a capacity of 100 KB. The WH-89 came completely assembled, but did not have the cassette interface board.		There is several different versions in the H-89 family of computers. Originally, 3 models were available: the H-88, H-89, and WH-89. The H-88 had a cassette interface board and no floppy drive (or controller). The H-89 added the hard-sectored controller and a single-sided floppy drive with a capacity of 100 KB. The WH-89 came completely assembled, but did not have the cassette interface board.

	After being acquired by Zenith, a new brand "Zenith Data Systems (ZDS)" was created. Two additional models were added - Z-89 and Z-90. Z-89 came completely assembled and was basically the same as previous WH-89. The Z-90 came with a Z-89-37 soft-sectored floppy controller instead of the hard-sectored controller. With the same drives, the soft-sector controller, could hold 160 KB. And with double-sided, 96-tpi drives it could hold 640 KB.		After being acquired by Zenith, a new brand "Zenith Data Systems (ZDS)" was created. Two additional models were added - Z-89 and Z-90. Z-89 came completely assembled and was basically the same as previous WH-89. The Z-90 came with a Z-89-37 soft-sectored floppy controller instead of the hard-sectored controller. With the same drives, the soft-sector controller, could hold 160 KB. And with double-sided, 96-tpi drives it could hold 640 KB.

	The Z-89-37 soft-sectored controller was ~~also~~ an upgrade ~~option~~ for the base H-89.		The Z-89-37 soft-sectored controller was available as an upgrade for the base H-89.

			=== H-89 Computer (driver name ''h89'') ===

	Currently, only the Z-89-37 soft-sectored controller has been implemented for the H-89. It supports up to 4 floppy disk drives. The default option of MTR-90 for the BIOS will allow the Z-89-37 to function properly~~. The ''tlbc'' slot device can be changed without impacting the Z-89-37~~.		Currently, only the Z-89-37 soft-sectored controller has been implemented for the H-89. It supports up to 4 floppy disk drives. The default option of MTR-90 for the BIOS will allow the Z-89-37 to function properly.

	==== Slot Options ====		==== Slot Options ====
			===== Left side slots (P501, P502, P503) =====
			The left side slots of the H89 were initially designed for memory boards, but by using ribbon cables to pull signals from sockets on the main CPU board, several I/O boards were created. Currently, just the SigmaSoft Parallel Port board is supported.

			===== Right side slots (P504, P505, P506) =====
			The right side slots were used for I/O boards, including floppy disk controllers, cassette interfaces, serial ports, and parallel ports. Some boards required special interrupt controller logic and I/O decoder PROM. Slot P506 had slightly different pin definitions than P504 and P505 which restricted which boards can be used in which slots.

	===== Z37 Floppy Drives =====		===== Z37 Floppy Drives =====
	The 4 ''h37:z37_fdc'' slots are for floppy drives connected to the Z-89-37 controller. (Note: The hardware supported 4 floppy drives, but Heath's own operating systems only supported 3 floppy drives.)		The 4 ''h37:z37_fdc'' slots are for floppy drives connected to the Z-89-37 controller. (Note: The hardware supported 4 floppy drives, but Heath's own operating systems only supported 3 floppy drives.)
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	* Ultimeth 4k ROM		* Ultimeth 4k ROM
	* SigmaROM 1.2 or 1.3.		* SigmaROM 1.2 or 1.3.
	The MTR-89 ~~does~~ support the Z-89-37. The 444-142 version of the MTR-90 is the recommended ROM since it improved performance when different types of drives are used with the Z-89-37.		The MTR-89 and CDR ROMs do not support the Z-89-37. The 444-142 version of the MTR-90 is the recommended ROM since it improved performance when different types of drives are used with the Z-89-37.
	The dip switch setting shown in the UI for the "[Root:]" can be configured by changing the Machine Configuration option "Switch SW501 Definitions". The selection which best match the BIOS selected for the system should be picked here.		The dip switch setting shown in the UI for the "[Root:]" can be configured by changing the Machine Configuration option "Switch SW501 Definitions". The selection which best match the BIOS selected for the system should be picked here.

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	=== H-88 Computer (driver name ''h88'') ===		=== H-88 Computer (driver name ''h88'') ===

	This is a version of the H-89 family of computers which came with a cassette interface card but supported adding the H-88-1 hard-sectored controller. Currently, only the cassette tape is implemented ~~in MAME~~.		This is a version of the H-89 family of computers which came with a cassette interface card but supported adding the H-88-1 hard-sectored controller. Currently, only the cassette tape is implemented.
	Software list of cassette software has been defined for the H88.		Software list of cassette software has been defined for the H88.
	The monitor command for loading a tape is just "L"oad. Type the L and the monitor software will complete the word. Once the load is complete and back at the monitor "H:" prompt, you should press "G"o. The system will wait for the user to press the space bar a few times, in order to determine the baud rate.		The monitor command for loading a tape is just "L"oad. Type the L and the monitor software will complete the word. Once the load is complete and back at the monitor "H:" prompt, you should press "G"o. The system will wait for the user to press the space bar a few times, in order to determine the baud rate.
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	=== Zenith Z-90 (driver name ''z90'') ===		=== Zenith Z-90 (driver name ''z90'') ===

	This system is similar to the H89 with the only difference being the selection of system BIOS. The ROMs which are not compatible with the Z-89-37 are not available		This system is similar to the H89 with the only difference being the selection of system BIOS. The ROMs which are not compatible with the Z-89-37 are not available.

	==== Slot Options ====		==== Slot Options ====

Mgarlanger: /* Zenith Z-90 (driver name z90) */

2025-02-02T08:13:23Z

Zenith Z-90 (driver name z90)

← Older revision		Revision as of 10:13, 2 February 2025
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	===== Terminal Logic board =====		===== Terminal Logic board =====

	The remaining slot device is the ''tlbc'', which is identical to the tlbc slot as defined above in the ~~H19~~ section.		The remaining slot device is the ''tlbc'', which is identical to the tlbc slot as defined above in the H89 section.

	== 8-bit/16-bit Heathkit Computers ==		== 8-bit/16-bit Heathkit Computers ==

Mgarlanger: /* H-89 with Magnolia MicroSystems(MMS) (driver name h89_mms) */

2025-02-02T08:12:53Z

H-89 with Magnolia MicroSystems(MMS) (driver name h89_mms)

← Older revision		Revision as of 10:12, 2 February 2025
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	===== Terminal Logic board =====		===== Terminal Logic board =====
	The remaining slot device is the ''tlbc'', which is identical to the tlbc slot as defined above in the ~~H19~~ section.		The remaining slot device is the ''tlbc'', which is identical to the tlbc slot as defined above in the H89 section.

	=== Zenith Z-90 (driver name ''z90'') ===		=== Zenith Z-90 (driver name ''z90'') ===

Mgarlanger: /* H-89 with SigmaSoft IGC (driver name h89_sigmasoft) */

2025-02-02T08:12:25Z

H-89 with SigmaSoft IGC (driver name h89_sigmasoft)

@@ Line 123: / Line 123: @@
 The remaining slot device is the ''tlbc'', which is identical to the tlbc slot as defined above in the H89 section.
-=== H-89 with SigmaSoft IGC (driver name ''h89_sigmasoft'') ===
+=== H-89 with SigmaSoft IGC ===
-This system is similar to the H89 with the only difference being the installation of the SigmaSoft IGC (Interactive Graphics Controller). The IGC provides 640x250 resolution, and supported up to 640x500 when interlace mode was used (interlace mode is not supported in MAME).
+This system was removed since it is now possible to add the IGC to any of the h89 systems with the addition of the SigmaSoft Parallel Port with IGC connection and one of the igc options for the ''tlbc'' as defined above in the h89 section.
 === H-89 with Magnolia MicroSystems(MMS) (driver name ''h89_mms'') ===

Mgarlanger: /* Terminal Logic board */

2025-02-02T08:06:51Z

Terminal Logic board

← Older revision		Revision as of 10:06, 2 February 2025
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	===== Terminal Logic board =====		===== Terminal Logic board =====
	The remaining slot device is the ''tlbc'', which is identical to the tlbc slot as defined above in the ~~H19~~ section.		The remaining slot device is the ''tlbc'', which is identical to the tlbc slot as defined above in the H89 section.

	=== H-89 with SigmaSoft IGC (driver name ''h89_sigmasoft'') ===		=== H-89 with SigmaSoft IGC (driver name ''h89_sigmasoft'') ===

Mgarlanger: /* Terminal Logic board */

2025-02-02T08:04:25Z

Terminal Logic board

← Older revision		Revision as of 10:04, 2 February 2025
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	===== Terminal Logic board =====		===== Terminal Logic board =====
	The remaining slot device is the ''tlbc''~~, which is identical~~ to the tlbc slot as defined above in the H19 section.		The remaining slot device is the ''tlbc''. In addition to the tlbc slot options as defined above in the H19 section, the h89 adds additional options that include the SigmaSoft IGC graphics card:
			* SigmaSoft IGC ''igc''
			::- Adds SigmaSoft's graphics card plus Heath's original ROM.
			* SigmaSoft IGC with Super19 ROM ''igc_super19''
			::- Adds SigmaSoft's graphics card plus Super19 ROM.
			* SigmaSoft IGC with UltraROM ''igc_ultrarom''
			::- Adds SigmaSoft's graphics card plus UltraROM.
			* SigmaSoft IGC with Watzman ROM ''igc_watzman''
			::- Adds SigmaSoft's graphics card plus Watzman(HUG) ROM.

			For these options, the SigmaSoft Parallel Port with IGC connection ''ss_parallel_igc'' must be installed in one of the left slots of the computer (P501, P502, P503).

	==== Key Mapping ====		==== Key Mapping ====

Mgarlanger: /* BIOS Options */

2025-02-02T07:46:58Z

BIOS Options

← Older revision		Revision as of 09:46, 2 February 2025
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	==== BIOS Options ====		==== BIOS Options ====
	In order for the H89 to work with the Z-89-37, ~~either version of~~ the ~~MTR~~-~~90 ROMs~~ must be used~~, or the~~ MMS's 84B. MTR-89 ~~can not be used~~. The 444-142 version of the MTR-90 is the recommended ROM since it improved performance when different types of drives are used with the Z-89-37.		In order for the H89 to work with the Z-89-37, a ROM chip with support for the Z-89-37 controller must be used. These include:
	The dip switch setting shown in the UI for the "[Root:]" can be configured by changing the Machine Configuration option "Switch ~~SWw501~~ Definitions". The selection which best match the BIOS selected for the system should be picked here.		* MTR-90 ROM (either version)
			* MMS's 84A or 84B
			* Kres KMR-100
			* Ultimeth 4k ROM
			* SigmaROM 1.2 or 1.3.
			The MTR-89 does support the Z-89-37. The 444-142 version of the MTR-90 is the recommended ROM since it improved performance when different types of drives are used with the Z-89-37.
			The dip switch setting shown in the UI for the "[Root:]" can be configured by changing the Machine Configuration option "Switch SW501 Definitions". The selection which best match the BIOS selected for the system should be picked here.

	==== Floppy Disk Image Options ====		==== Floppy Disk Image Options ====

Mgarlanger: /* Zenith Data Systems Z-100 (Same as Heath H-100) */

2024-08-01T05:34:51Z

Zenith Data Systems Z-100 (Same as Heath H-100)

← Older revision		Revision as of 07:34, 1 August 2024
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	== 8-bit/16-bit Heathkit Computers ==		== 8-bit/16-bit Heathkit Computers ==

	=== Zenith Data Systems Z-100 (Same as Heath H-100) ===		=== Zenith Data Systems Z-100 (Same as Heath H-100) (driver name z100)===

	System is not working.		System is not working.

Mgarlanger at 05:32, 1 August 2024

2024-08-01T05:32:55Z

← Older revision		Revision as of 07:32, 1 August 2024
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	===== Terminal Logic board =====		===== Terminal Logic board =====
			The remaining slot device is the ''tlbc'', which is identical to the tlbc slot as defined above in the H19 section.

			=== Zenith Z-90 (driver name ''z90'') ===

			This system is similar to the H89 with the only difference being the selection of system BIOS. The ROMs which are not compatible with the Z-89-37 are not available

			==== Slot Options ====

			===== Z37 Floppy Drives =====

			Same options as for the H89.

			===== Interrupt socket =====

			Same fixed ''z37'' as the H89.

			===== Terminal Logic board =====

	The remaining slot device is the ''tlbc'', which is identical to the tlbc slot as defined above in the H19 section.		The remaining slot device is the ''tlbc'', which is identical to the tlbc slot as defined above in the H19 section.