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  • Re: PS/2s with ROM Basic

    From IBMMuseum@21:1/5 to All on Sun Nov 19 21:54:46 2023
    Topic revived seventeen years later - we now have a better answer: https://ardent-tool.com/tech/ROM_BASIC.html

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  • From Louis Ohland@21:1/5 to IBMMuseum on Mon Nov 20 16:23:42 2023
    Complete 32 KB ROM BASIC, Inaccessible on Boot

    Most IML systems:

    PS/2 Model 76/77 (w/ "Bermuda" planar)
    PS/2 Model 90/95 w/ Type 1 Processor Complex
    PS/2 Model 90/95 w/ Type 2 Processor Complex
    and more...

    So. Inaccessible on Boot. So, how do we access it?

    IBMMuseum wrote:
    Topic revived seventeen years later - we now have a better answer: https://ardent-tool.com/tech/ROM_BASIC.html


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  • From IBMMuseum@21:1/5 to All on Mon Nov 20 22:06:52 2023
    Complete 32 KB ROM BASIC, Inaccessible on Boot

    Most IML systems:

    PS/2 Model 76/77 (w/ "Bermuda" planar)
    PS/2 Model 90/95 w/ Type 1 Processor Complex
    PS/2 Model 90/95 w/ Type 2 Processor Complex
    and more...

    So. Inaccessible on Boot. So, how do we access it?

    BASIC/BASICA from DOS?...

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  • From Louis Ohland@21:1/5 to IBMMuseum on Tue Nov 21 07:39:14 2023
    https://www.atarimagazines.com/compute/issue78/003_4_Readers_Feedback_IBM_BASIC_Versions.php

    You can tell what version of BASIC you're using by looking at the
    version identifier in the BASIC startup message. The identifier C stands
    for cassette; D stands for disk; A stands for advanced BASIC; and J
    stands for cartridge BASIC (the J signifies junior). Some versions of
    IBM BASIC have gone through one or more revisions. The number after the identifier tells you which revision you are using. For instance,
    cassette BASIC on the PCjr is Version C1.20, while the PCjr's cartridge
    BASIC identifies itself as Version Jl.OO, indicating that cassette BASIC
    was revised twice but cartridge BASIC has not yet been revised.

    IBMMuseum wrote:
    Complete 32 KB ROM BASIC, Inaccessible on Boot

    Most IML systems:

    PS/2 Model 76/77 (w/ "Bermuda" planar)
    PS/2 Model 90/95 w/ Type 1 Processor Complex
    PS/2 Model 90/95 w/ Type 2 Processor Complex
    and more...

    So. Inaccessible on Boot. So, how do we access it?

    BASIC/BASICA from DOS?...


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  • From IBMMuseum@21:1/5 to All on Tue Nov 21 08:53:29 2023
    https://www.atarimagazines.com/compute/issue78/003_4_Readers_Feedback_IBM_BASIC_Versions.php

    You can tell what version of BASIC you're using by looking at the
    version identifier in the BASIC startup message. The identifier C stands
    for cassette; D stands for disk; A stands for advanced BASIC; and J
    stands for cartridge BASIC (the J signifies junior). Some versions of
    IBM BASIC have gone through one or more revisions. The number after the identifier tells you which revision you are using. For instance,
    cassette BASIC on the PCjr is Version C1.20, while the PCjr's cartridge
    BASIC identifies itself as Version Jl.OO, indicating that cassette BASIC
    was revised twice but cartridge BASIC has not yet been revised.

    Interesting - I hear the die-hards call ROM-BASIC as "Cassette BASIC" even when it is not on the IBM PC (the only IBM system with a cassette port). This information should be incorporated on the page.

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  • From JWR@21:1/5 to All on Tue Nov 21 20:03:27 2023
    while the PCjr's cartridge BASIC identifies itself as Version Jl.OO,

    I suppose J1.00 is more likely (OCR-hiccup??)

    --
    Jelte,
    Admirer of the letter of IBM with blue Ishiki

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  • From IBMMuseum@21:1/5 to All on Tue Nov 21 14:06:19 2023
    while the PCjr's cartridge BASIC identifies itself as Version Jl.OO,
    I suppose J1.00 is more likely (OCR-hiccup??)

    The article is archived in italic, and probably had an OCR error with the original (it is pre-PS/2, in 1986)...

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  • From Louis Ohland@21:1/5 to IBMMuseum on Tue Nov 21 18:17:39 2023
    Dave, that article is in a lot of places.

    IBMMuseum wrote:
    while the PCjr's cartridge BASIC identifies itself as Version Jl.OO,
    I suppose J1.00 is more likely (OCR-hiccup??)

    The article is archived in italic, and probably had an OCR error with the original (it is pre-PS/2, in 1986)...


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  • From JWR@21:1/5 to Louis Ohland on Wed Nov 22 10:30:10 2023
    On 22-11-2023 01:17, Louis Ohland wrote:
    Dave, that article is in a lot of places.

    IBMMuseum wrote:
    while the PCjr's cartridge BASIC identifies itself as Version Jl.OO,
    I suppose J1.00 is more likely (OCR-hiccup??)

    The article is archived in italic, and probably had an OCR error with the original (it is pre-PS/2, in 1986)...


    Do they all say Jl.OO ? Maybe OCR was correct after all, but it sure would be strange, though...
    (or maybe the programmer was a *very* early fan of J-LO ;)

    --
    Jelte,
    Admirer of the letter of IBM with blue Ishiki

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  • From Tomas Slavotinek@21:1/5 to JWR on Wed Nov 29 22:14:30 2023
    On 22.11.2023 10:30, JWR wrote:
    On 22-11-2023 01:17, Louis Ohland wrote:
    Dave, that article is in a lot of places.

    IBMMuseum wrote:
    while the PCjr's cartridge BASIC identifies itself as Version Jl.OO,
    I suppose J1.00 is more likely (OCR-hiccup??)

    The article is archived in italic, and probably had an OCR error with
    the original (it is pre-PS/2, in 1986)...


    Do they all say Jl.OO ? Maybe OCR was correct after all, but it sure
    would be strange, though...
    (or maybe the programmer was a *very* early fan of J-LO ;)

    Info added:
    https://ardent-tool.com/tech/ROM_BASIC.html#Versions
    (link to the original article in the Further Reading section)

    And yeah, Jl.OO is an OCR error. Just to be 100% sure I czeched the ROM image... (available here for those interested: http://retrograde.inf.ua/pcjr.htm)

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