dsp1-demonstration.7z software forestofullusionprototypes softwarehistory <h1 class="title" style="margin:0px 0px 15px;padding:0px;font-size:32px;text-align:center;font-family:'PT Sans';"><br /></h1><p class="post-meta" style="margin:0px 0px 15px;padding:0px;color:rgb(130,130,130);text-align:center;">Wednesday Aug. 10th, 2022 - <em class="post-category" style="font-family:'Source Sans Pro', Lato, Helvetica;font-size:16px;">Super Famicom</em></p><div class="post-content" style="margin-bottom:30px;color:rgb(17,17,17);font-family:'Source Sans Pro';font-size:18px;background-color:rgba(255,255,255,0.95);"><p style="margin:0px 0px 15px;padding:0px;font-size:1.5rem;">This cartridge contains a simple tech demo meant to showcase the capabilities of the SNES DSP1 chip to developers. It was programmed at Nintendo’s Kyoto HQ, however, this copy originated from Nintendo of America and was donated to us by developer Randy Linden!</p><p style="margin:0px 0px 15px;padding:0px;font-size:1.5rem;">The demo begins with a giant wireframe floor featuring the Nintendo logo, with the player being able to move the camera anywhere within the 3D space. The underside of the map features quite a cool little “easteregg” in the form of the text “NEC µPD77C25”. NEC developed this chip in 1980, and it is essentially the same as the DSP1 chip that Nintendo debuted for the launch title Pilotwings.</p><p style="margin:0px 0px 15px;padding:0px;font-size:1.5rem;">Funnily enough, the EPROM itself is an NEC D27C1001A-15, which according to it’s datasheet, only holds around 1,048,576 bits of data. Unfortunately the timeframe that the demo began it’s distribution to developers is currently a unclear. The date stamps within the source code put the Japanese version at sometime in July of 1992, however, the version within the cartridge does not match that of the source, and contains slight differences within the binary. One possible clue may be the date on the battery, which reads July 1991 (just a short time before the North American launch of the SNES).</p><p style="margin:0px 0px 15px;padding:0px;font-size:1.5rem;">Something else I was wondering about was the EPROM cover, as it features a drawing of someone who could’ve possibly worked at Nintendo during this time. I reached out to <a href="https://twitter.com/MrTalida" style="color:rgb(170,170,170);" rel="nofollow">MrTalida</a>, who brought up the striking resemblance to Masayuki Uemura (the lead architect for the Famicom and Super Famicom). Pretty close if you ask me!</p><p style="margin:0px 0px 15px;padding:0px;font-size:1.5rem;">Please note that the only method to play this demo within an emulator is via ROM modifications. This is caused by Nintendo not correctly setting an internal header. Additional information <a href="https://snescentral.com/article.php?id=1239" style="color:rgb(170,170,170);" rel="nofollow">here</a>.</p><p style="margin:0px 0px 15px;padding:0px;font-size:1.5rem;"><em>ROM Information</em></p><pre style="margin-top:0px;margin-bottom:15px;padding:8px 12px;font-size:15px;border:1px solid rgb(232,232,232);background-color:rgb(238,238,255);"><code style="border:0px;padding:1px 0px;font-family:Monaco, Consolas, 'Lucida Console', monospace;">----| File Data |-------------------------------------------------- System: Nintendo - Super Nintendo Entertainment System File: dsp1-demonstration.sfc BitSize: 1 Mbit Size (Bytes): 131072 CRC32: D18A00CD MD5: 54ECF1DC3401BA5DC0D2A838C26F35C5 SHA1: 48F17DBCCCA2C2BB8E332BB3B7D2563A512C13E3 SHA256: 7FA4C45862E889E50D7F16DEBB127D5B1B75789CA4CEF5AE4FE9C51C4B1DE6AC ----| Detection Data |--------------------------------------------- ROM Type: LoROM Cartridge Type: Normal ----| Header Data |------------------------------------------------ New Maker Code: N/A Serial: N/A SFX SRAM Size: 0xFF Title: Map Type: 0xFF (Unknown; Unknown) ROM Type: 0xFF (Unknown) ROM Size: 0xFF (4 Kbit; Bad) SRAM Size: 0xFF (4 Kbit) Country: 0xFF (Unknown) Old Maker Code: 0xFF (Unknown) Version: 0xFF (v1.255) Inverse Checksum: 0xFFFF (Bad; 0xB3B0) Checksum: 0xFFFF (Bad; 0x4C4F)</code></pre></div><div><div class="gtx-trans-icon"></div></div> Internet Archive HTML5 Uploader 1.7.0 SNES;Prototype;Development;Debug;Sample wiiprotos@gmail.com 2022-10-06 03:56:59 2022-10-06 03:56:59 [curator]jscott@archive.org[/curator][date]20230509181042[/date][state]un-dark[/state][comment]Not Spam[/comment] Nintendo true