fumyuun
118f6b41b8
WIP on PPU io registers
2023-10-02 22:47:32 +01:00
fumyuun
7cec002e1a
Starting work on a simple cartridge
...
In order to get through bootstrap process
2023-10-02 21:56:19 +01:00
fumyuun
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
fumyuun
4f892eb3f2
Implement RL r instruction
...
Some groundwork on rotation operations
2022-02-08 16:14:57 +00:00
fumyuun
49ce1631b3
Implement LD ($FF00+C), A
2021-02-20 22:10:47 +00:00
fumyuun
2937ff492b
Initial register bank, support LD RR, $nnnn instructions
2021-02-17 22:40:24 +00:00
fumyuun
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
fumyuun
3191a19f7e
Initial work on reading instructions from bootROM
2021-02-15 22:55:09 +00:00
fumyuun
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
fumyuun