Flux

@willflux.bsky.social

335 Followers 164 Following

Only hardware makes it possible! FPGA, RISC-V, 68K, OS, graphics, demos, permacomputing http://projectf.io | http://systemtalk.org

Viking minifig riding a chunky courgette.
Labelled motherboard of Sega Saturn showing many processors.
Legos minifig standing on a bag of Dried Spanish Mini Figs.
BBC Radio 4 Ident 92-95 FM & 198 LW
Small fan position behind a glass of cold water with condensation on it.
Verilator/SDL simulation running Isle.Computer hardware. The test bitmap has a single pixel yellow border around the edge. Having scrolled the bitmap canvas, the four corners of the yellow border meet together in the bottom right of the image.
256x160 16-colour crocus bitmap scaled up 2x (512x320) and rendered in the top-left corner of a 672x384 Verilator/SDL simulation of Isle Computer. The remainder of the window, not covered by the crocus image, is navy blue.
Computer monitor showing false colour image of crocuses with overlaid scrolling text thar says “Isle.Computer” and resolution information.
Isle.Computer Verilator/Simulation window. The window has a very dark green background. Yellow and green text in the window reads: Isle.Computer Display: 672x384 Bitmap: 672x384 Text: 84×24
Domain renewal notice for projectf.io - $74.74 for a year.
Extract from AMD Vivado feature chart showing the $1200/$1800 version supports Windows and Linux, while the Basic (Free) version only supports Windows.
A polling station at a church. There are two signs, one says The Parish Centre and the other Polling Station.
Verilator/SDL simulation window running Isle on macOS. The window has a dark green background with the following text: Isle.Computer Display: 672x384 Bitmap: 672×384 Text: 84×24
RTX 5070 12 gigabyte graphics module for Framework 16. Price £1150 inc VAT. $1200 in US.
French bram is on another level. #fpga
16 colour image of crocuses in grass with the wrong palette. The flowers are green and blue while the grass is bright pink, purple, and sand coloured.
Clip from Futurama in Bender's apartment. Bender has a nightmare where he dreams about the number 2 amongst the ones and zeros. Fry assures him "there's no such thing as two".
Earthrise 2D drawing test image on widescreen monitor driven by an FPGA dev board over HDMI. A mixture of lines, triangles, and circles in greens and oranges.
Video clip showing Earthrise graphics engine drawing shapes, line by line.
* support negative numbers in strd_int * optimise strd_int, reducing branches in loop from 3 to 1 * reject invalid hex characters in strx_int :;<=>? (U+003A-0x003F) * add number/string example program software/book/ch06/num_str.s * rename keyboard include to unicode and change constants UNI_ -> UCS_ * add chapter 6 memory map to README
Isle echo program running in Verilator/SDL simulation.
Isle.Computer running on ULX3S FPGA dev board connected to monitor showing number guessing game.
ULX3S FPGA dev board connected to monitor showing number guessing game.
A Killy Corp memory upgrades advert from 1986. 128 to 512 is $173. 512 to 2 meg is $549.
Photograph of page from MacUser December 1985: “VMCO is the Visual/Vocal MAUG Conferencing Utility. It’s a communication program that integrates MacinTalk, Apple’s speech synthesis program, and the conferencing (or group meeting) software…”
A coconut sapling growing on a tropical beach.
Number guessing game. The user is asked to guess a number between 1-100 and is told at each step if their guess is too low or too high. Isle.Computer running in a Vertilator/SDL simulation window.
Verilator/SDL simulation running Isle hardware and software. The screen contents read: Hello, this is Isle.Computer demoing Unicode read line in RISC-V assembler. Open source Verilog hardware and bare metal RISC-V assembler. :) We have block elements in the character ROM.
An animation of the wolf, goat and cabbage problem crossing a river
# rand_pseudo - return a pseudorandom number using lfsr # a0: start of range (unsigned) # a1: end of range (unsigned) # return: pseudorandom number # rand_pseudo: li t6, SYS_DEV # check range is positive: ensure a1 ≥ a0 bleu a0, a1, 0f # skip if already in correct order mv t0, a0 mv a0, a1 mv a1, t0 0: # determine range: a2 = a1 - a0 + 1 sub a2, a1, a0 addi a2, a2, 1 beqz a2, 2f # branch if full range (a2 wraps to 0) # rejection threshold to remove bias neg t1, a2 # 2^32 - range remu t1, t1, a2 # threshold = 2^32 % range 1: # sample lfsr and check threshold lw t2, LFSR_32(t6) bltu t2, t1, 1b # reject if bias value (try again) # create random number in range remu t2, t2, a2 # divide by range add a0, t2, a0 # add start of range ret 2: # sample raw lfsr output for full range lw a0, LFSR_32(t6) ret
Sign in window of shop reads: !!!STOP!!! GIVING CATS !!!TREATS!!! DONT PUT HAND THROUGH LETTERBOX
Isle.Computer running on ULX3S dev board connected to computer monitor over HDMI. The text on the monitor reads: Isle.Computer Hello, hardware friends. Demos look better on a dev board :) Thanks to my sponsors.
Verilator/SDL simulation window on macOS reads: Isle.Computer Hello, this is a 115200 baud test on Isle Computer. We also have delete and carriage return. Next up there's buffered input with a fifo...
Verilator/SDL simulation running on macOS. The window displays the following text in orange on a dark background "▚▚ Hello, World! UTF-8 UART ▚▚".
ULX3S PCB connected to computer monitor showing “Hello, World! This is an Isle FPGA Computer UART test.”
Orange ASCII art jumping person on monitor.
Lattice Semiconductor Temporarily Down for Maintenance
Photograph of ULX3S dev board showing 'Hello!' in Isle text mode on a widescreen monitor.
RISC-V CPU running on ULX3S dev board saying "Hello!" using Isle text mode.
Kingfisher sitting on wooden post above a lake.
Isle text mode with Unscii font showing block and Latin characters.
Table showing the different Isle display, bitmap, and text mode resolution combinations. You can read the full table in the post link (it's difficult to format tables in alt text).
ULX3S FPGA dev board connected to widescreen monitor showing test text in 16 colours.
ULX3S FPGA dev board connected to widescreen monitor showing test text 16 colours.
Advert for Golden Common Lisp
Text mode with x-scale=1 and y-scale=1 in Verilator/SDL simulation. 84x24 half-width glyphs.
Isle.Computer text mode demo showing Basic Latin and Block Elements Unicode blocks in GNU Unifont typeface with different foreground and background colours running in Verilator/SDL simulation.
The author's Amiga 500, AMOS, and Deluxe Paint II floppy disks in a grey Commodore floppy disk wallet.
The Hubble Deep Field, a picture taken over the course of ten consecutive days in December 1995, by the Hubble Space Telescope.
Screenshot of Compiler Explorer showing C source for endian swap function being compiled into RISC-V asm with Clang 18.1.
The machine for each instruction (in hex format) looks like this: 0xC00A # lca 10 0xC108 # lcb 8 0x0008 # x0 8 0x1010 # y0 16 0x2010 # x1 16 0x3018 # y1 24 0xD100 # draw line ca 0x1020 # y0 32 0xD102 # draw line cb 0xCE00 # stop (CEase)
Monitor attached to FPGA dev board (out of shot) displaying Earthrise all shapes demo with lines, triangles, circles, rectangles, and squares in greens, oranges, and yellows.
Colour reference chart for included 16, 4, and 2-colour palettes.
A mass of brown and red seaweeds glistening on the beach.
Screenshot of draft blog post, beginning "Earthrise instructions are simple, but writing binary or hex instructions by hand is tedious. Our (forthcoming) CPU can write them for us, but I've also created a simple assembler format and Python assembler for programming Earthrise."
Drawing from his well-documented history of boundless enthusiasm and internal struggle, Cookie Monster's teachings could form the basis of a surprisingly resonant, if unconventional, spiritual practice. As a religious leader, he would focus on the complex relationship between desire, indulgence, and the ultimate wisdom of knowing when to practice moderation.
Notice at Time Circus installation in Turnhout in Belgium next to a copy of the book Landschip.
Announcing the table designed exclusively for your Macintosh.
Lakritz FPGA dev board driving widescreen monitor showing picture of purple and white crocuses. The monitor is running at 1366x768.
Party Fears Two 7” by The Associates