PSP Emulator: Difference between revisions
Jump to navigation
Jump to search
| (7 intermediate revisions by the same user not shown) | |||
| Line 20: | Line 20: | ||
| 0xBC300000 | | 0xBC300000 | ||
| 0x1000? | | 0x1000? | ||
| MIPS -> Kermit (ARM) communication | | [[PSP Emulator#Interrupt manager|Interrupt manager]]. Used for MIPS <-> Kermit (ARM) communication | ||
|- | |- | ||
| 0xBD000000 | | 0xBD000000 | ||
| 0x1000? | | 0x1000? | ||
| | | [[PSP Emulator#System control|System control]] | ||
|- | |- | ||
| 0xBE140000 | | 0xBE140000 | ||
| Line 32: | Line 32: | ||
| 0xBFC00000 | | 0xBFC00000 | ||
| 0x1000 | | 0x1000 | ||
| Shared SRAM | | Shared SRAM. Mapped to [[Physical_Memory#Main_table|<code>0xE8100000</code>]] on ARM side | ||
|- | |- | ||
|} | |} | ||
== SceGrab == | == Registers == | ||
=== Interrupt manager === | |||
{| class='wikitable' | |||
|- | |||
! Address | |||
! Size | |||
! Comments | |||
|- | |||
| 0xBC300030 | |||
| 4 | |||
| Interrupt pending and ack/clear, 1 bit each | |||
|- | |||
| 0xBC300038 | |||
| 4 | |||
| Interrupt enable/mask, 1 bit each | |||
|- | |||
| 0xBC300040 | |||
| 4 | |||
| Interrupt mode for IRQs 0-15, 2 bits each | |||
|- | |||
| 0xBC300044 | |||
| 4 | |||
| Interrupt priority for IRQs 0-15, 2 bits each | |||
|- | |||
| 0xBC300048 | |||
| 4 | |||
| Interrupt mode for IRQs 16-31, 2 bits each | |||
|- | |||
| 0xBC30004C | |||
| 4 | |||
| Interrupt priority for IRQs 16-32, 2 bits each | |||
|- | |||
| 0xBC300050 | |||
| 4 | |||
| Interrupt raise, 1 bit each. Raises [[SceKernelIntrMgr#Registered_Interrupts|<code>SceCompatN</code>]] ARM interrupt | |||
|} | |||
=== System control === | |||
{| class='wikitable' | |||
|- | |||
! Address | |||
! Size | |||
! Comments | |||
|- | |||
| 0xBD000000 | |||
| 4 | |||
| ?? | |||
|- | |||
| 0xBD000004 | |||
| 4 | |||
| ?? | |||
|} | |||
=== SceGrab === | |||
{| class='wikitable' | {| class='wikitable' | ||
| Line 62: | Line 118: | ||
|} | |} | ||
== SceCompatLCDDMA == | === SceCompatLCDDMA === | ||
{| class='wikitable' | {| class='wikitable' | ||
Latest revision as of 10:04, 14 April 2020
PSP Memory Layout
| Address | Size | Comments |
|---|---|---|
| 0x00010000 | 0x4000 | CPU Scratchpad |
| 0x04000000 | 2 MB/4 MB | VRAM/Framebuffer |
| 0x08000000 | 64 MB | Main Memory |
| 0xBC300000 | 0x1000? | Interrupt manager. Used for MIPS <-> Kermit (ARM) communication |
| 0xBD000000 | 0x1000? | System control |
| 0xBE140000 | 0xC0000 | LCDC |
| 0xBFC00000 | 0x1000 | Shared SRAM. Mapped to 0xE8100000 on ARM side
|
Registers
Interrupt manager
| Address | Size | Comments |
|---|---|---|
| 0xBC300030 | 4 | Interrupt pending and ack/clear, 1 bit each |
| 0xBC300038 | 4 | Interrupt enable/mask, 1 bit each |
| 0xBC300040 | 4 | Interrupt mode for IRQs 0-15, 2 bits each |
| 0xBC300044 | 4 | Interrupt priority for IRQs 0-15, 2 bits each |
| 0xBC300048 | 4 | Interrupt mode for IRQs 16-31, 2 bits each |
| 0xBC30004C | 4 | Interrupt priority for IRQs 16-32, 2 bits each |
| 0xBC300050 | 4 | Interrupt raise, 1 bit each. Raises SceCompatN ARM interrupt
|
System control
| Address | Size | Comments |
|---|---|---|
| 0xBD000000 | 4 | ?? |
| 0xBD000004 | 4 | ?? |
SceGrab
| Address | Size | Comments |
|---|---|---|
| 0xE8300120 | 4 | Paddr of CDRAM base + 1, maps to 0x88000000? |
| 0xE8300124 | 4 | Paddr of CDRAM base + 0x1000000 + 1 |
| 0xE8300128 | 4 | Paddr of CDRAM base + 0x2000000 + 1 |
| 0xE830012C | 4 | Paddr of flash0 in CDRAM (base + 0x3000000) + 1, maps to 0x3000000? |
SceCompatLCDDMA
| Address | Size | Comments |
|---|---|---|
| 0xE5071004 | 4 | set 1 when done |
| 0xE5071024 | 4 | 0xFF0000 |
| 0xE5071028 | 4 | 0x0 |
| 0xE5071030 | 4 | some status |
| 0xE5071034 | 4 | Width pixels |
| 0xE5071038 | 4 | 0x0 |
| 0xE507103C | 4 | Hight pixels |
| 0xE5071040 | 4 | 0x0 |
| 0xE507104C | 4 | DMA Paddr |
| 0xE5071078 | 4 | 0x0 |
| 0xE5071084 | 4 | 0x0 |
| 0xE5071050 | 4 | 2048 |
| 0xE5071094 | 4 | 2 |
| 0xE5071098 | 4 | 1 |
| 0xE50710C0 | 4 | busy status? (set 0x1000000 when done) |