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Adding Redux' ports.

This commit is contained in:
Nicolas Pixel Noble 2022-08-28 18:50:35 -07:00
parent 35e4d4b1ef
commit a328146985
2 changed files with 31 additions and 2 deletions
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25
docs/expansionportpio.md
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@ -456,8 +456,6 @@ The first write to 1F802070h is 32bit, all further writes seem to be 8bit.<br/>
#### 1FA00000h - POST3 - External 7-segment Display (W) - PS2
Similar to POST, but PS2 BIOS uses this address.<br/>
## EXP2 Nocash Emulation Expansion
#### 1F802060h Emu-Expansion ID1 "E" (R)
#### 1F802061h Emu-Expansion ID2 "X" (R)
@ -485,3 +483,26 @@ acknowledging the previous interrupt.<br/>
2 Controller Turbo (0=Normal, 1=Turbo)
3-7 Reserved (must be zero)
```
## EXP2 PCSX-Redux Emulation Expansion
PCSX-Redux contains some specific hardware registers for the purpose of testing and debugging.
They are located past the 1F802080h address, which means that accessing them on the real
hardware will cause an exception, unless the [1F80101Ch register](https://psx-spx.consoledev.net/memorycontrol/#1f80101ch-expansion-2-delaysize-usually-00070777h-128-bytes-8bit-bus) has been set to
be at least twice its normal size.
#### 1F802080h 4 Redux-Expansion ID "PCSX" (R)
Identification string. Use this to query that your binary is running under PCSX-Redux.
#### 1F802080h 1 Redux-Expansion Console putchar (W)
Adds this character to the console output. This is an easier way to write to the console than using the BIOS.
#### 1F802081h 1 Redux-Expansion Debug break (W)
Causes a debug breakpoint to be triggered. PCSX-Redux will pause and the user will be alerted of a software breakpoint.
#### 1F802082h 1 Redux-Expansion Exit code (W)
Sets the exit code for the program. When in test mode, PCSX-Redux will exit with this code.
#### 1F802084h 4 Redux-Expansion Notification message pointer (W)
Displays a pop-up message to the user with the specified string.
See [PCSX-Redux's documentation](https://pcsx-redux.consoledev.net/mips_api/) for more details and examples.

8
docs/iomap.md
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@ -222,6 +222,14 @@
1F802066h Emu-Expansion Halt (R)
1F802067h Emu-Expansion Turbo Mode Flags (R/W)
```
#### Expansion Region 2 - PCSX-Redux Emulation Expansion
```
1F802080h 4 Redux-Expansion ID "PCSX" (R)
1F802080h 1 Redux-Expansion Console putchar (W)
1F802081h 1 Redux-Expansion Debug break (W)
1F802082h 1 Redux-Expansion Exit code (W)
1F802084h 4 Redux-Expansion Notification message pointer (W)
```
#### Expansion Region 3 (default 1 byte, max 2 MBytes)
```
1FA00000h - Not used by BIOS or any PSX games