[Coco] Relocatable ROM monitor

[Dave Philipsen]

That’s interesting.  You wouldn’t ordinarily expect that a program originally written to reside in ROM at a fixed location on a program pak would have been written in relocatable code since that generally is a little more complicated and the resulting binary is not quite as dense as non-relocatable code.

Dave

> On Oct 2, 2018, at 10:36 PM, Arthur Flexser <flexser at fiu.edu> wrote:
> 
> It may be the ZBUG, included with Disk Edtasm+ from Radio Shack, already
> handles everything you want.  I believe the Disk version of ZBUG includes
> its own versions of CHROUT and POLCAT, though I'm not 100% sure about
> that.  It's probably in the archives here.  It has also been patched by
> third parties for 80-column output and some other niceties (Robert Gault?)
> I'm pretty sure it is relocatable.
> 
> Art
> 
>> On Tue, Oct 2, 2018 at 11:14 PM, tim lindner <tlindner at macmess.org> wrote:
>> 
>> Yes it is. Thanks you very much!
>>> On Tue, Oct 2, 2018 at 5:54 PM Dave Philipsen <dave at davebiz.com> wrote:
>>> 
>>> I got the monitor working on the CoCo.  It’s not relocatable and it
>> relies on POLCAT and CHROUT right now: https://youtu.be/dcT5mnyPtCw
>>> 
>>> It’ll take me a little time to write a keyboard scan routine, character
>> out routine, re-format for 32 columns, and re-write a few sections for
>> re-locatable code.  It allows you to view/edit memory locations, do a dump
>> of memory from a specific address, and execute code at a specific address.
>> Is that kind of what you want?
>>> 
>>> Dave
>>> 
>>>> On Oct 2, 2018, at 1:35 PM, tim lindner <tlindner at macmess.org> wrote:
>>>> 
>>>> 32.
>>>> 
>>>>> On Tue, Oct 2, 2018 at 11:34 AM Dave Philipsen <dave at davebiz.com>
>> wrote:
>>>>> 
>>>>> Yeah, that makes it a little more difficult since I'd have to write
>> the
>>>>> keyboard scan and text display routines from scratch.  They are
>> normally
>>>>> just a simply read/write to a UART.  What text mode do you plan on
>> using
>>>>> for the monitor (32,40,80)?
>>>>> 
>>>>> Dave
>>>>> 
>>>>>> On 10/2/2018 1:19 PM, tim lindner wrote:
>>>>>> I love to see it. But it'll prolly also need adjusting to read the
>>>>>> CoCo keyboard and output to the CoCo video.
>>>>>> 
>>>>>> I'm looking for something that doesn't depend on POLCAT or CHROUT.
>>>>>> 
>>>>>>> On Tue, Oct 2, 2018 at 11:16 AM Dave Philipsen <dave at davebiz.com>
>> wrote:
>>>>>>> I have a monitor that I’ve used for years on embedded systems. It
>> probably wouldn’t be too tough to make sure it’s relocatable. It uses a few
>> locations in direct page RAM though.
>>>>>>> 
>>>>>>> Dave
>>>>>>> 
>>>>>>>> On Oct 2, 2018, at 10:16 AM, tim lindner <tlindner at macmess.org>
>> wrote:
>>>>>>>> 
>>>>>>>> Does anyone know of a relocatable ROM monitor program for the CoCo?
>>>>>>>> 
>>>>>>>> Something I can load in to RAM arbitrarily and start peeking and
>>>>>>>> poking RAM, ROM and peripherals?
>>>>>>>> 
>>>>>>>> 
>>>>>>>> --
>>>>>>>> --
>>>>>>>> tim lindner
>>>>>>>> 
>>>>>>>> "Proper User Policy apparently means Simon Says."
>>>>>>>> 
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>> tim lindner
>> 
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>> 
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