Oct. 29th, 2004

fivemack: (Default)
My landlord came round this evening and said that he needed to sell the house to pay his divorce settlement.

I get two month's notice starting from when he finds a buyer, and apparently now is almost exactly the trough season for house-buying, so that hopefully means I won't be turfed out until the spring.

I think I could afford to buy the house myself, especially if I keep my current housemate on and get him to pay rent, but given that I believe house prices have a fair way to fall from here, spending most of my wealth on the pursuit of negative equity is not just Not Clearly Wise, but Clearly Not Wise.

Glerk. One more thing to worry about. And I have my driving test Monday. I'm not sure how confident I am about it, so I've made a small bet. If I pass then I buy my housemate a swede; if I fail, he buys me a cabbage.
fivemack: (Default)
Appears to be to write Mandelbrot-set generators on as wide a range of platforms as possible.



This one is running only on the ARM in the Gameboy Advance; I've written verilog which I _think_ should do the iterations on the FPGA (write X and Y into two memory-mapped registers, write a magic location to start it iterating, read a different location until its value changes to 1, read out the number of iterations from yet a fifth location), but the synthesis tool appears to have two modes: one generates unclear syntax errors, and one decides that everything must be constant and elides away all the hardware.

The FPGA is large enough to hold two sets of three medium-sized fixed-precision multipliers, which ought to make it noticeably faster than the GBA if only I can work out how to get the handshaking right. It may be the right answer is to use little state machines and blockram in the FPGA, and process a fair number of pixels on-FPGA at a time; if it's a row or a square, then the FPGA logic could generate the coordinates.

If you come to [livejournal.com profile] hsaneg's party in Oxford you can play with it yourself :)

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