Commit Graph

5 Commits (master)

Author SHA1 Message Date
Nabile Rahmani 40d0944418 SysAD: "value" => "data". 2018-06-09 18:31:15 +02:00
Nabile Rahmani 08853d495f The CPU only supports 32-bit physical addresses.
No point in keeping the result of translated addresses 64-bit.
2017-12-20 01:50:44 +01:00
Nabile Rahmani 23b06e69b5 Huge changes (too lazy to separate).
* VR4300.SystemControlUnit.StatusRegister.cs: Removed unneeded
  value.

* VR4300.SystemControlUnit.cs: Renamed method.

* VR4300.Instruction.cs: Refactored instruction contents. Now
  individual parts can be written to as well.
It is also possible to strip an instruction to its bare opcode
  identifier, or even create one from a specified opcode, so this can
  be used as a key in a dictionary of operations.
A basic ToString implementation displays the opcode of the
  instruction.

* VR4300.OpCode.cs:
* VR4300.RegImmOpCode.cs:
* VR4300.SpecialOpCode.cs: Added opcodes.

* VR4300.cs: Unified operations into a single dictionary thanks to the
  instruction refactoring.
Added ops: JAL, SLTI, XORI, BLEZL, SB, LBU, SLT, BGEZL.

* Debugger.Command.cs: Basic display of what the command is about.

* Debugger.InstructionFormat.cs: First pass of the formatter.

* Debugger.cs: Proper disassembly of instructions. Stepping also
  displays the contents of registers.
~Infinite~ count argument for stepping/disassembling.
Refactored instruction fetch into using the CPU's SysAD bus (no need
  to manually access the N64's memory maps).

* DotN64.csproj:
* RealityCoprocessor.SignalProcessor.StatusRegister.cs:
* RealityCoprocessor.DisplayProcessor.StatusRegister.cs:
* RealityCoprocessor.RDRAMInterface.RDRAMConfigIndex.cs:
* RealityCoprocessor.RDRAMInterface.RDRAMConfigRegister.cs:

* MappingEntryExtensions.cs: Saves some typing.

* BitHelper.cs: Reusable methods.

* Nintendo64.cs: More memory maps.

* Program.cs: Minor changes.

* RealityCoprocessor.Interface.cs:
* RealityCoprocessor.AudioInterface.cs:
* RealityCoprocessor.VideoInterface.cs:
* RealityCoprocessor.SerialInterface.cs: Simplified mapping accesses.

* RealityCoprocessor.DisplayProcessor.cs: Added an actual register.
Simplified mapping accesses.

* RealityCoprocessor.MIPSInterface.cs: Added dummy version register
  read.
Simplified mapping accesses.

* RealityCoprocessor.PeripheralInterface.cs: Basic DMA.
Simplified mapping accesses.

* RealityCoprocessor.RDRAMInterface.cs: Removed constants that get set
  in the boot process.
Added RDRAM registers.
Simplified mapping accesses.

* RealityCoprocessor.SignalProcessor.cs: Better types for existing
  registers and handle status writes.
Simplified mapping accesses.
2017-12-11 15:04:53 +01:00
Nabile Rahmani a6ae17a345 Use SysAD pins instead of passing maps. 2017-11-21 12:59:59 +01:00
Nabile Rahmani 9da7b68741 - Reduced memory allocation and CPU usage by not using LINQ, foreach in hot paths and unsafe writes instead of array copies.
- 64-bit addressing in mapping entries instead of down-casting.
- Fixed cartridge field length.
- Adjusted ops.
2017-10-30 10:05:09 +01:00