Using the 9010 to fill a block of RAM
I'm hoping one of you code jockeys knows a simple program for filling a block of memory on the 9010 - in this case with FFs. I'm looking for something like: *Begin at address xxxxh write FFh, ** ** **Increment counter by 1 store, ** ** **Compare counter with yyyyh - if equal goto Finish** ** **Loop back to Begin** ** **Finish* I think I just about wrote the program, but it would take me up to a couple of hours to get it to work (I'm a heck of a lot better on hardware). Why do I want this? Well, I am finding that the AnyPin device we sell is loaded with 00s, and the early Williams games don't seem to like that, so I want to load them with FFs and see if that works better. A 5101 is only 4 bits wide, so I made a simple adapter that puts a second 5101 in parallel (address and selects) with the original and the four additional data lines (D4 - D7) go to a Glomper clip that fits over a handy ROM to get those connections. Now I can test the 5101 in the game using the standard built in RAM tests. Thanks! John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/
You're close to the actual program with your pseudocode. Why not take a stab at writing it? I have something close to what you want, but I'm not home to share it right now.
On Jan 28, 2015, at 5:06 PM, John Robertson <jrr@flippers.com> wrote:
I'm hoping one of you code jockeys knows a simple program for filling a block of memory on the 9010 - in this case with FFs.
I'm looking for something like:
*Begin at address xxxxh write FFh, ** ** **Increment counter by 1 store, ** ** **Compare counter with yyyyh - if equal goto Finish** ** **Loop back to Begin** ** **Finish*
I think I just about wrote the program, but it would take me up to a couple of hours to get it to work (I'm a heck of a lot better on hardware).
Why do I want this? Well, I am finding that the AnyPin device we sell is loaded with 00s, and the early Williams games don't seem to like that, so I want to load them with FFs and see if that works better. A 5101 is only 4 bits wide, so I made a simple adapter that puts a second 5101 in parallel (address and selects) with the original and the four additional data lines (D4 - D7) go to a Glomper clip that fits over a handy ROM to get those connections. Now I can test the 5101 in the game using the standard built in RAM tests.
Thanks!
John :-#)#
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I have this. I'll send it to you when I get home. On Jan 28, 2015 8:07 PM, "John Robertson" <jrr@flippers.com> wrote:
I'm hoping one of you code jockeys knows a simple program for filling a block of memory on the 9010 - in this case with FFs.
I'm looking for something like:
*Begin at address xxxxh write FFh, ** ** **Increment counter by 1 store, ** ** **Compare counter with yyyyh - if equal goto Finish** ** **Loop back to Begin** ** **Finish*
I think I just about wrote the program, but it would take me up to a couple of hours to get it to work (I'm a heck of a lot better on hardware).
Why do I want this? Well, I am finding that the AnyPin device we sell is loaded with 00s, and the early Williams games don't seem to like that, so I want to load them with FFs and see if that works better. A 5101 is only 4 bits wide, so I made a simple adapter that puts a second 5101 in parallel (address and selects) with the original and the four additional data lines (D4 - D7) go to a Glomper clip that fits over a handy ROM to get those connections. Now I can test the 5101 in the game using the standard built in RAM tests.
Thanks!
John :-#)#
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Hi Adam, You can post it to the list if you wish, others may be interested... Thanks! John :-#)# On 01/28/2015 5:19 PM, Adam Courchesne wrote:
I have this. I'll send it to you when I get home.
On Jan 28, 2015 8:07 PM, "John Robertson" <jrr@flippers.com <mailto:jrr@flippers.com>> wrote:
I'm hoping one of you code jockeys knows a simple program for filling a block of memory on the 9010 - in this case with FFs.
I'm looking for something like:
*Begin at address xxxxh write FFh, ** ** **Increment counter by 1 store, ** ** **Compare counter with yyyyh - if equal goto Finish** ** **Loop back to Begin** ** **Finish*
I think I just about wrote the program, but it would take me up to a couple of hours to get it to work (I'm a heck of a lot better on hardware).
Why do I want this? Well, I am finding that the AnyPin device we sell is loaded with 00s, and the early Williams games don't seem to like that, so I want to load them with FFs and see if that works better. A 5101 is only 4 bits wide, so I made a simple adapter that puts a second 5101 in parallel (address and selects) with the original and the four additional data lines (D4 - D7) go to a Glomper clip that fits over a handy ROM to get those connections. Now I can test the 5101 in the game using the standard built in RAM tests.
Thanks!
John :-#)#
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You don't want to loop back to "Begin" or you will reset your counter to "begin". Loop to the increment command. Also, you want to do "yyyy+1" if you want to fill that last byte. ________________________________________ From: Techtoolslist <techtoolslist-bounces@flippers.com> on behalf of John Robertson <jrr@flippers.com> Sent: Wednesday, January 28, 2015 8:30 PM To: techtoolslist@flippers.com Subject: Re: [Techtoolslist] Using the 9010 to fill a block of RAM Hi Adam, You can post it to the list if you wish, others may be interested... Thanks! John :-#)# On 01/28/2015 5:19 PM, Adam Courchesne wrote:
I have this. I'll send it to you when I get home.
On Jan 28, 2015 8:07 PM, "John Robertson" <jrr@flippers.com <mailto:jrr@flippers.com>> wrote:
I'm hoping one of you code jockeys knows a simple program for filling a block of memory on the 9010 - in this case with FFs.
I'm looking for something like:
*Begin at address xxxxh write FFh, ** ** **Increment counter by 1 store, ** ** **Compare counter with yyyyh - if equal goto Finish** ** **Loop back to Begin** ** **Finish*
I think I just about wrote the program, but it would take me up to a couple of hours to get it to work (I'm a heck of a lot better on hardware).
Why do I want this? Well, I am finding that the AnyPin device we sell is loaded with 00s, and the early Williams games don't seem to like that, so I want to load them with FFs and see if that works better. A 5101 is only 4 bits wide, so I made a simple adapter that puts a second 5101 in parallel (address and selects) with the original and the four additional data lines (D4 - D7) go to a Glomper clip that fits over a handy ROM to get those connections. Now I can test the 5101 in the game using the standard built in RAM tests.
Thanks!
John :-#)#
-- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com <mailto:Techtoolslist@flippers.com> https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/
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Here you go. I use this script all thew time when debugging video memory issues. Flood the video mem with a known value and then look at the outputs when the video circuitry performs reads to see if something in the datapath or RAM is sketchy. On Wed, Jan 28, 2015 at 8:30 PM, John Robertson <jrr@flippers.com> wrote:
Hi Adam,
You can post it to the list if you wish, others may be interested...
Thanks!
John :-#)#
On 01/28/2015 5:19 PM, Adam Courchesne wrote:
I have this. I'll send it to you when I get home.
On Jan 28, 2015 8:07 PM, "John Robertson" <jrr@flippers.com <mailto: jrr@flippers.com>> wrote:
I'm hoping one of you code jockeys knows a simple program for filling a block of memory on the 9010 - in this case with FFs.
I'm looking for something like:
*Begin at address xxxxh write FFh, ** ** **Increment counter by 1 store, ** ** **Compare counter with yyyyh - if equal goto Finish** ** **Loop back to Begin** ** **Finish*
I think I just about wrote the program, but it would take me up to a couple of hours to get it to work (I'm a heck of a lot better on hardware).
Why do I want this? Well, I am finding that the AnyPin device we sell is loaded with 00s, and the early Williams games don't seem to like that, so I want to load them with FFs and see if that works better. A 5101 is only 4 bits wide, so I made a simple adapter that puts a second 5101 in parallel (address and selects) with the original and the four additional data lines (D4 - D7) go to a Glomper clip that fits over a handy ROM to get those connections. Now I can test the 5101 in the game using the standard built in RAM tests.
Thanks!
John :-#)#
-- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com <mailto:Techtoolslist@flippers.com> https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/
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-- -Adam "Please don't judge my God by my inability to follow him" - Chris Mollins =============== www.onecircuit.com www.mapleridge.net ===============
Hi Adam, Thanks! I'd like to put that in the Fluke repository on the TTL FTP site (9010 tapes, etc.) if that is OK with you. Perhaps others with interesting little scripts that they are willing to share will want to add theirs' too... John :-#)# On 01/29/2015 6:19 AM, Adam Courchesne wrote:
Here you go. I use this script all thew time when debugging video memory issues. Flood the video mem with a known value and then look at the outputs when the video circuitry performs reads to see if something in the datapath or RAM is sketchy.
On Wed, Jan 28, 2015 at 8:30 PM, John Robertson <jrr@flippers.com <mailto:jrr@flippers.com>> wrote:
Hi Adam,
You can post it to the list if you wish, others may be interested...
Thanks!
John :-#)#
On 01/28/2015 5:19 PM, Adam Courchesne wrote:
I have this. I'll send it to you when I get home.
On Jan 28, 2015 8:07 PM, "John Robertson" <jrr@flippers.com <mailto:jrr@flippers.com> <mailto:jrr@flippers.com <mailto:jrr@flippers.com>>> wrote:
I'm hoping one of you code jockeys knows a simple program for filling a block of memory on the 9010 - in this case with FFs.
I'm looking for something like:
*Begin at address xxxxh write FFh, ** ** **Increment counter by 1 store, ** ** **Compare counter with yyyyh - if equal goto Finish** ** **Loop back to Begin** ** **Finish*
I think I just about wrote the program, but it would take me up to a couple of hours to get it to work (I'm a heck of a lot better on hardware).
Why do I want this? Well, I am finding that the AnyPin device we sell is loaded with 00s, and the early Williams games don't seem to like that, so I want to load them with FFs and see if that works better. A 5101 is only 4 bits wide, so I made a simple adapter that puts a second 5101 in parallel (address and selects) with the original and the four additional data lines (D4 - D7) go to a Glomper clip that fits over a handy ROM to get those connections. Now I can test the 5101 in the game using the standard built in RAM tests.
Thanks!
John :-#)#
-- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/
Not bad little utility - even I, fumble fingers, can type that into the 9010 in a few minutes using the keyboard. Note that the '#' symbol is the 'BELL' (looks vaguely like this thing to right <|>) otherwise known as 'ROM' in the Learn section for the PC script. I couldn't figure out how to enter the delay, but it wasn't needed, the program worked as advertised! Thanks! John :-#)# On 01/29/2015 6:19 AM, Adam Courchesne wrote:
Here you go. I use this script all thew time when debugging video memory issues. Flood the video mem with a known value and then look at the outputs when the video circuitry performs reads to see if something in the datapath or RAM is sketchy.
On Wed, Jan 28, 2015 at 8:30 PM, John Robertson <jrr@flippers.com <mailto:jrr@flippers.com>> wrote:
Hi Adam,
You can post it to the list if you wish, others may be interested...
Thanks!
John :-#)#
On 01/28/2015 5:19 PM, Adam Courchesne wrote:
I have this. I'll send it to you when I get home.
On Jan 28, 2015 8:07 PM, "John Robertson" <jrr@flippers.com <mailto:jrr@flippers.com> <mailto:jrr@flippers.com <mailto:jrr@flippers.com>>> wrote:
I'm hoping one of you code jockeys knows a simple program for filling a block of memory on the 9010 - in this case with FFs.
I'm looking for something like:
*Begin at address xxxxh write FFh, ** ** **Increment counter by 1 store, ** ** **Compare counter with yyyyh - if equal goto Finish** ** **Loop back to Begin** ** **Finish*
I think I just about wrote the program, but it would take me up to a couple of hours to get it to work (I'm a heck of a lot better on hardware).
Why do I want this? Well, I am finding that the AnyPin device we sell is loaded with 00s, and the early Williams games don't seem to like that, so I want to load them with FFs and see if that works better. A 5101 is only 4 bits wide, so I made a simple adapter that puts a second 5101 in parallel (address and selects) with the original and the four additional data lines (D4 - D7) go to a Glomper clip that fits over a handy ROM to get those connections. Now I can test the 5101 in the game using the standard built in RAM tests.
Thanks!
John :-#)#
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participants (4)
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