Ira Goldklang's TRS-80 Revived Site » Model I

December 9, 2010 – Program to Dump ROM to Cassette

Ira — Thu, 09 Dec 2010 19:07:26 +0000

December 9, 2010 – Program to Dump ROM to Cassette

Kurt Baumgardner wrote a short BASIC program to allow those with Model I’s to dump their ROM’s to cassette if that is their only option. Kurt advises that it needs 16K of RAM and takes a little less than 3 and a half minutes to run. He did not test it on a Model III but assumes, at the very least, that the ROM line would need to be changed from ROM=12 to ROM=14

10 CLS : PRINT " ROM DUMP TO TAPE" : PRINT
20 FOR T = 32512 TO 32537 : READ B : POKE T,B : NEXT T
30 POKE 16526, 0 : POKE 16527, 127
40 ROM = 12 ' 12K OF ROM ... CHANGE AS NEEDED
50 POKE 32523, ROM * 4
60 INPUT "READY CASSETTE"; T
70 T = USR (0)
100 DATA 175, 205, 18, 2, 205, 135, 2, 33, 0, 0
110 DATA 14, 48, 126, 205, 100, 2, 35, 16 ,249
120 DATA 13, 32, 246, 205, 248, 1, 201

October 27, 2010 – Model I ROM v1.1 Found

Ira — Thu, 28 Oct 2010 01:25:19 +0000

October 27, 2010 – Model I ROM v1.1 Found
v1.1 of the Model I ROM has been dumped by John Benson. The ROM Checksums check out under the TRSDOS ROM tester. Thank you John!

October 26, 2010 – Explanation as to Model I ROM Versions

Ira — Tue, 26 Oct 2010 14:24:02 +0000

October 26, 2010 – Explanation as to Model I ROM Versions
In hopes of answering all of the questions which have arisen from the realization that there are 4 versions of the Model I ROM and we (at the time) had only 1 of them, Matthew Reed, author of the amazing TRS32 emulator, has posted a brief explanation of the ROM versions. Jump here for the explanation.

October 16, 2010 – More Model I MultiDOS Images

Ira — Sat, 16 Oct 2010 02:30:44 +0000

October 16, 2010 – More Model I MultiDOS Images
Vernon Hester has kindly provided Model I MultiDOS versions 1.0, 1.5S, 1.5D, and 1.5P. Enjoy.

October 15, 2010 – Model I ROM v1.0 Found; v1.1 Still Missing

Ira — Fri, 15 Oct 2010 19:25:45 +0000

October 15, 2010 – Model I ROM v1.0 Found; v1.1 Still Missing
v1.0 of the Model I ROM has been dumped. Sadly, while the individual thought he had v1.1 too, it turned out to be v1.2. Anyone with v1.1, please give a shout out. Thanks!	(v1.0 ROM Chips)

October 12, 2010 – Possibly Found v1.0 ROMs

Ira — Tue, 12 Oct 2010 19:27:56 +0000

October 12, 2010 – ~~Possibly~~ Found v1.0 ~~and v1.1~~ ROMs

A site visitor has indicated that he ~~believes he~~ has a Model I which has the v1.0 ~~and the v1.1~~ ROMs and intends to either dump them to cassette or read them in an EPROM reader. Of course, if anyone finds they have ~~v1.0 or~~ v1.1 ROMs, please let me know. ROMs can be dumped to disk as follows:

   10 PC=0 : IR=0
   20 OPEN "O",1,"NEWROM/ROM:0"
   30 FOR X = 0 TO &H2FFF
   40 PRINT #1,CHR$(PEEK(X)); : IR=IR+1
   50 IF IR = 614 THEN IR = 0: PC=PC+5: PRINT PC"% ...";
   60 NEXT X
   70 PRINT "DONE!":PRINT
   80 CLOSE

It takes about 1/2 hour to run (which is why I coded in 5% increment status updates)

February 6, 2009 – Site Updates and Updated Emulators

Ira — Fri, 06 Feb 2009 21:58:32 +0000

As I continue to explore WordPress, I am toying with the idea of moving more of the site over. In connection with this transition, I have been reworking the emulator page to clean up HTML errors and make it more WordPress friendly. In doing so, I also verified the links and have realized that a number of emulators have been updated. These include:
	HT 1080/Z v1.6, updated on Sep. 17, 2007
	VCC v1.40 Installer, updated on Jan. 3, 2008
	MC-10 Emulator v0.73c, updated on May, 2008
	Multi Emulator Super System (Binary) v1.29 updated on Jan. 6, 2008
	Virtual T v1.3 updated on Sep. 25, 2008

January 25, 2008 – New Version of TRS32 Released

Ira — Sat, 26 Jan 2008 00:38:00 +0000

Matthew Reed has released an update to his PHENOMENAL Windows Compatible TRS-80 Model 1/3/4 emulator.

The updated version 1.18 can be downloaded here or from his site.

If you are looking for a Windows based emulator, this is the one to register (which I strongly encourage you to do … and NO, I do not see a penny from this venture or recommendation).