Paul Gardner-Stephen
Paul Gardner-Stephen
### Steps to reproduce [examples.zip](https://github.com/OpenOrienteering/mapper/files/4391450/examples.zip) 1. Obtain ASC file from ELVIS for area of interest (in my case around -30.3151,139.3259, Arkaroola Village, or use the example file attached) 2. Use...
Hi Jim, Nice project. A couple of thoughts and ideas: 1. For the colour RAM, have you thought about having the colour RAM selection automatically change every raster line, so...
This of course depends on issue #43. A link to the D81 file for testing would be helpful here...
Most of the machinery is in place, but it doesn't actually work. Consider simulation to see what is going on with the fetching and display. Make notes here about what...
In C64 mode the following code: POKE53280,0:POKE53281,1:POKE646,0:POKE199,1:FOR T=1 TO 800:?" ";:NEXT T shows a thin white line on the right side just before the border starts but after the screen...
Reported by a user: Second topic: C64 sprites (just basic sprites, but more difficult to demonstrate) Please enter the following code in C64 mode: POKE53280,6:POKE53281,0 POKE53248,23:POKE53249,55:POKE2040,64:POKE53287,1:POKE53269,1 FOR T=4096 TO 4159:POKE...
e.g., so that TXS, TYS cannot be split by an interrupt. Not currently implemented. For our design, this will in practice mean no interrupts after single byte instructions.
Required for Issue #27, as interface routine at $CAF4 waits for serial port to empty/fill?
Trying SDHC mode on SD cards adds ~2 seconds to the kickstart time, instead of SD card access being possible within ~0.2 seconds. This is very annoying. SD mode is...
Memory mapper makes this a bit interesting to do. Current thoughts: - 1K 4-way associative cache with random replacement. - Need random(ish) bit sequence generator. - The cache would hold...