Search found 802 matches

by Ben Boldt
Fri May 14, 2021 2:32 pm
Forum: NESdev
Topic: In Search of 6502/Turbo Game Doctor 6M+ Hacking Expert.
Replies: 11
Views: 274

Re: In Search of 6502/Turbo Game Doctor 6M+ Hacking Expert.

And for those wondering, having to load up four disks and a saver disk to play Final Fantasy 3 in perfect english is akin to listening to a record on vinyl to me and I have been trying to figure out how to play FF3 in english on original media since I discovered the game. This checks my shelf candy...
by Ben Boldt
Thu May 06, 2021 6:25 pm
Forum: NES Hardware and Flash Equipment
Topic: Famicom Network System (aka Famicom Modem) Investigations
Replies: 160
Views: 113940

Re: Famicom Network System (aka Famicom Modem) Investigations

I just discovered something pretty cool. I was trying to generate a UART Tx buffer overrun by writing to the buffer before it had finished sending the first byte. First I sent $55 to $4110, then right away $AA to $4110: lda #$55 sta $4110 lda #$AA sta $4110 ; trigger overrun? I just got 1 AA that wa...
by Ben Boldt
Wed May 05, 2021 7:20 pm
Forum: NES Hardware and Flash Equipment
Topic: Famicom Network System (aka Famicom Modem) Investigations
Replies: 160
Views: 113940

Re: Famicom Network System (aka Famicom Modem) Investigations

Not sure what technically constitutes a framing error. Framing errors are any time the stop bit isn't. The standard reasons to get one are "wrong data rate" and "received a BREAK". Thanks Lidnariq, I just now inverted my stop bit and returned to idle after that to try your suggestion. This caused o...
by Ben Boldt
Wed May 05, 2021 7:07 pm
Forum: NES Hardware and Flash Equipment
Topic: Brainstorming using Microcontroller as mapper
Replies: 18
Views: 13464

Re: Brainstorming using Microcontroller as mapper

Holy cow, it never crossed my mind to use a DMA to write to control registers other DMAs, super cool idea. I noticed the same thing with these STM32s I have here, if I toggle an I/O bit super fast, it comes out all funky like I wasn't getting all the toggles out to the pin. Older micros (16-bit, 8-b...
by Ben Boldt
Wed May 05, 2021 6:59 pm
Forum: NES Hardware and Flash Equipment
Topic: Famicom Network System (aka Famicom Modem) Investigations
Replies: 160
Views: 113940

Re: Famicom Network System (aka Famicom Modem) Investigations

I found/confirmed a bunch of UART functionality in registers $411x, updated in the wiki. I got a lot of stuff with the Tx figured out, which is easier because I can poke bits and just look at the UART Tx signal with my scope to see what happens. This includes a lot of general settings such as 7-bit ...
by Ben Boldt
Tue May 04, 2021 8:36 am
Forum: NESemdev
Topic: RockNES 5.70C -May 5th 2021-
Replies: 5
Views: 1113

Re: RockNES 5.70B -May 3rd 2021-

I used to be a really huge fan of Macintosh computers before Mac OS X. I was quite literally obsessed with them. In 9th grade I discovered those emulators, and went to emuscene all the time over dialup modem. I just remember Richard being so rude and obtuse... Really making it a point to show how mu...
by Ben Boldt
Mon May 03, 2021 3:04 pm
Forum: NESemdev
Topic: RockNES 5.70C -May 5th 2021-
Replies: 5
Views: 1113

Re: RockNES 5.70B -May 3rd 2021-

What ever happened to the Macintosh version? Did you get fed up working with Richard Bannister or was he the one that stopped porting it for some reason? I have always been curious about that.
by Ben Boldt
Sat May 01, 2021 5:54 pm
Forum: NES Hardware and Flash Equipment
Topic: Famicom Network System (aka Famicom Modem) Investigations
Replies: 160
Views: 113940

Re: Famicom Network System (aka Famicom Modem) Investigations

I am pretty confused about something. For Famicom registers $40D3, $40D5, $40D6 (which are driven by the CPU2 chip), I have in the wiki some info about unused read bits. I stated in these that the unused bits follow pull-ups and pull-downs. Now when I look at $40D3 and $40D6, I find that they do NOT...
by Ben Boldt
Thu Apr 29, 2021 7:31 pm
Forum: General Stuff
Topic: Zelda II - The Adventure of Link... SUCKED
Replies: 28
Views: 2870

Re: Zelda II - The Adventure of Link... SUCKED

I have always been a bit 'different'... I didn't like Zelda 2 even when only 1 & 2 existed. Memory from back then can have a way of getting exaggerated though. Maybe my current bias against it inflated the distant reality a bit. I always thought the vines growing on the title screen in Zelda 1 were ...
by Ben Boldt
Tue Apr 27, 2021 9:47 pm
Forum: General Stuff
Topic: Zelda II - The Adventure of Link... SUCKED
Replies: 28
Views: 2870

Zelda II - The Adventure of Link... SUCKED

I understand some people like this game, but I remember when I was a kid playing it for the first time. I had the original Zelda, which I loved, and I wanted Zelda II really bad for a long time. When I finally got to play it at someone's house, I thought it sucked, BIG-TIME. I still think that now. ...
by Ben Boldt
Sat Apr 24, 2021 10:43 am
Forum: NES Hardware and Flash Equipment
Topic: Famicom Network System (aka Famicom Modem) Investigations
Replies: 160
Views: 113940

Re: Famicom Network System (aka Famicom Modem) Investigations

I finished converting the Oki MSM6827L datasheet to English. Let me know if you find any problems with it or if you want my original MS Word doc for any reason. I used Google Translate extensively.
by Ben Boldt
Tue Apr 20, 2021 8:28 am
Forum: General Stuff
Topic: Loss of interest for computer scinence, anyone else ?
Replies: 40
Views: 14245

Re: Loss of interest for computer scinence, anyone else ?

Also there's no necessarly an anit-correlation to how interesting a job is and how much you're paid. I think there is a definite correlation there when you look at the big picture. I would say the majority of fun jobs don't pay well. Lifeguard, bringing in carts at the grocery store, picking up gar...
by Ben Boldt
Mon Apr 19, 2021 12:24 pm
Forum: General Stuff
Topic: Loss of interest for computer scinence, anyone else ?
Replies: 40
Views: 14245

Re: Loss of interest for computer scinence, anyone else ?

I think it is fair to work for someone else and for them to make the profits. They are the ones taking the risk that way. They have to lose sleep and worry about the business staying afloat, jump off a bridge if things go wrong, etc. We can just go home at the end of the day without a care in the wo...
by Ben Boldt
Mon Apr 19, 2021 9:42 am
Forum: General Stuff
Topic: Loss of interest for computer scinence, anyone else ?
Replies: 40
Views: 14245

Re: Loss of interest for computer scinence, anyone else ?

I'm doing firmware development as a job, and it's boring as hell, it has not much in common with NES/Famicom development. The only common point is the 32kb ROM size limit. The software we develop is supposed to come in everyone's smartphones in the coming years, but yet I do not see how this is any...
by Ben Boldt
Sun Apr 18, 2021 3:58 pm
Forum: General Stuff
Topic: Loss of interest for computer scinence, anyone else ?
Replies: 40
Views: 14245

Re: Loss of interest for computer scinence, anyone else ?

I don't want to be an AGILE developer, eating a Hamcrest sandwich while wearing my Spring Boots. I want to be like my heroes of the DOS era and before, wearing a wizard's hat and eating a cheese toastie. I'm not saying that modern developments in computing aren't fascinating, I just don't want the ...