00:00:00 --- log: started retro/11.05.06
06:56:33 <crc> zzing: the javascript vm supports simple graphics; so does the sdl-backed vm in src/vm/experimental/sdl
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10:26:49 * crc is tired of waiting for the work day to end
12:31:06 <crc> ok, new commit. "needs forth'" then "with forth'" to get traditional for/next, if/else/then, 2dup, and r@
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17:31:31 <zzing> Good evening crc
18:03:33 <crc> hi zzing
18:03:40 * crc just got in for the night
18:03:49 <crc> zzing: the javascript vm supports simple graphics; so does the sdl-backed vm in src/vm/experimental/sdl
18:04:30 <zzing> crc, I was thinking what I would like to do is simulate a real graphics adapter or something modelled on one
18:05:30 <zzing> I have sort of gone from enthusiastic of forth (culminating in trying pforth), to indifferent over the lack of good course to pursue. 
18:06:04 <zzing> So my present idea is to see if I can try to get a virtual machine up that I can play with and you guys happen to have a vm with basic port idea
18:07:36 <crc> I've thought about trying other approaches to graphics, but lack of time has prevented me from making any headway there
18:08:06 <zzing> I am doing a military thing starting sunday, so I won't have much time for at least 5 weeks :p
18:08:46 <crc> good luck :)
18:09:27 * crc has been working 55 hour weeks most of the year; that plus entertaining the kids leaves me a bit too tired to code effectively
18:09:50 <zzing> That would do it
18:21:58 <zzing> crc, it looks very interesting the vm
18:22:07 <zzing> But what is the memory layout and other things like that?
18:22:34 <crc> memory is a flat memory space. on startup, execution begins at address zero
18:23:41 <zzing> crc, how do you access a location in memory?
18:25:09 <crc> the fetch instruction (opcode 14)
18:25:16 <crc> pops the address off the stack, returns the value
18:25:41 <crc> there's also a store instruction, which pops an address and value off the stack and stores the value to the address (opcode 15)
18:27:04 <zzing> nice
18:28:07 <crc> the instruction set is basically a minimalized forth language
18:28:14 <zzing> yes
18:37:53 <zzing> crc, it appears to me that your minimal machine here can be the core of a machine suitable for me with a change or two.
18:38:12 <crc> good
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23:59:59 --- log: ended retro/11.05.06