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The MSSIAH cartridge is quite picky about power-on timing. Even the Ultimate 64 had to tweak something so that it would work. It also doesn't currently work on the MEGA65, due to this kind of problem…
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We want to eventually port this to run natively on the MEGA65 for flashing the MEGA65 keyboard Lattice CPLD.
I assume LLVM-MOS will be the compiler of choice, since we need C++
It needs to support…
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On page: https://github.com/lgblgblgb/xemu/wiki/MEGA65-ROM-%22how-to-get-it%22-tutorial-for-Xemu
At the bottom of the page:
`Right click into the running emulator window, select the "SD-card" me…
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**Test Environment (required)**
- Platform: Xemu vs. Nexys/MEGA65
- Core Commit: 191
- ROM Release: 920366
**Describe the bug**
Writing to VIC-IV registers $d048/49 (TBDRPOS), $d04a/4b (BBDR…
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The MEGA65 R3A board I have here spontaneously resets every few minutes or so. This shouldn't happen.
First step: Implement logic to tell which reset signal source is to blame.
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It would be nice to have the 1565 Drive working with 1581 or even CMD-FD2000 Disks. This would make my archiving easier quite much. For now the internal disk drive cant be used at all from the core.
…
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mega65-tools has a new replacement for `bit2cor` and `bit2mcs` named `coretool`. In the future I would like to deprecated the old tools (so that we don't have to maintain multiple tools doing the same…
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To my knowledge then only **16x16** charsets are supported, but it would be nice with alternative sizes (e.g. **12x12**).
This is just wishful thinking from my side, and naturally not very importan…
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If an external drive 1581/1541-II is connected to the MEGA65 but is not powered on, the MEGA65 will not boot into C65, it does boot into C64, when MEGA-Key is pressed while switching MEGA65 on.
adtbm updated
3 years ago
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NOP and NEG opcodes are great for prefixes as they are single cycle opcodes, and even the 65CE02 would not allow already interrupts after a single cycle opcode, thus the atomic execution of these pref…