Commit Graph

13 Commits

Author SHA1 Message Date
Koray Yanik 82584dab34 More WIP on PPU 2023-10-31 22:48:14 +00:00
Koray Yanik 3c3dbd2175 Starting work on PPU -> display -> VGA 2023-10-13 20:46:05 +01:00
Koray Yanik bfcdec1d83 Add a simple watchdog timeout 2023-10-03 22:31:39 +01:00
Koray Yanik 9cc63a248e Fix some verilog issues 2023-10-03 22:30:36 +01:00
Koray Yanik 118f6b41b8 WIP on PPU io registers 2023-10-02 22:47:32 +01:00
Koray Yanik 7cec002e1a Starting work on a simple cartridge
In order to get through bootstrap process
2023-10-02 21:56:19 +01:00
Koray Yanik fda176d3b5 Complete rewrite from scratch, bootstrap WIP
Rewrite to use several bus multiplexers, resulting into a less messy
microarchitecture (hopefully). Some more room for cleanup though...

Supports every instruction from the bootstrap rom, more or less.
LY hacked at 0x90 to progress through vsync instantly.
No cartridge is present yet, so we will always fail checksum test and lock up.
2023-10-01 23:00:56 +01:00
Koray Yanik 4f892eb3f2 Implement RL r instruction
Some groundwork on rotation operations
2022-02-08 16:14:57 +00:00
Koray Yanik 49ce1631b3 Implement LD ($FF00+C), A 2021-02-20 22:10:47 +00:00
Koray Yanik 2937ff492b Initial register bank, support LD RR, $nnnn instructions 2021-02-17 22:40:24 +00:00
Koray Yanik aa92344d10 Initial work on decoder
Decode the LD SP, $nnnn instruction as our first three-byte
instruction.
2021-02-16 21:13:50 +00:00
Koray Yanik 3191a19f7e Initial work on reading instructions from bootROM 2021-02-15 22:55:09 +00:00
Koray Yanik e56afb8c9e Initial work on build system
Simple makefile to build testbench in vivado.
Testbench currently just has a clock and a reset.
Empty gb top module.
2021-02-15 21:40:12 +00:00