23
edits
Changes
→LCD Source Framebuffer Setup: Correct typo in mathematical calculation.
! Name
! Name
! Comments
! Comments
|-
| 0x1EF00000
| 0x10400000
| 4
| Hardware ID
| Bit2: new model
|-
|-
| 0x1EF00004
| 0x1EF00004
| 4
| 4
| VRAM bank control
| VRAM bank control
| Bits 8-11 = bank[i] disabled; other bits are unused
| Bits 8-11 = bank[i] disabled; other bits are unused.
|-
|-
| 0x1EF00034
| 0x1EF00034
| 4
| 4
| GPU Busy
| GPU Busy
| Bit31 = cmd-list busy, bit27 = PSC0 busy, bit26 = PSC1 busy.
| Bit26 = PSC0, bit27 = PSC1, Bit30 = PPF, Bit31 = P3D
|-
|-
| 0x1EF00050
| 0x1EF00050
VClock = PClock / (HTotal + 1) / (VTotal + 1)
VClock = PClock / (HTotal + 1) / (VTotal + 1)
Setting this to 494 lowers framerate to about 50.040660858 Hz ((268111856 / 24) / (250 + 1) / (494 + 1)).
Setting this to 494 lowers framerate to about 50.040660858 Hz ((268111856 / 24) / (450 + 1) / (494 + 1)).
|-
|-
| 0x28
| 0x28
|-
|-
| 5-4
| 5-4
| Framebuffer scanline output mode (interlace config)
| Framebuffer scanline output mode (framebuffer interleave config)
0 - A (output image as normal)
0 - A (output image as normal)
1 - AA (output a single line twice, aka framebuffer A is interlaced with itself)
1 - AA (output a single line twice, so framebuffer A is interleaved with itself)
2 - AB (interlace framebuffer A and framebuffer B)
2 - AB (interleave framebuffer A and framebuffer B)
3 - BA (same as above, but the line from framebuffer B is outputted first)
3 - BA (same as above, but the line from framebuffer B is outputted first)
| DMA size
| DMA size
0 - 64 bytes
0 - 4 words (32 bytes)
1 - 128 bytes
1 - 8 words (64 bytes)
2 - 256 bytes
2 - 16 words (128 bytes)
3 - ???
3 - ???
FCRAM doesn't support DMA size 3.
FCRAM doesn't support DMA size 3, as it can only burst up to 16 words (128 bytes), and will show a black screen instead.
|-
|-
| 31-16
| 31-16