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Diffstat (limited to 'doc/known_bugs.md')
| -rw-r--r-- | doc/known_bugs.md | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/doc/known_bugs.md b/doc/known_bugs.md index e39da43..3fbfdc2 100644 --- a/doc/known_bugs.md +++ b/doc/known_bugs.md @@ -1,8 +1,9 @@ # Known PSn00bSDK bugs -This is an incomplete list of things that are currently broken (or not behaving -as they should, or untested on real hardware) and haven't yet been fixed. +This is an incomplete list of things that are known to be currently broken (or +not behaving as they should, or untested on real hardware) and haven't yet been +fixed. ## Toolchain @@ -15,18 +16,25 @@ as they should, or untested on real hardware) and haven't yet been fixed. them. It might be necessary to list such symbols in a dummy array to prevent the compiler from stripping them away from the executable. +- Link-time optimization is broken due to GCC not supporting it when linking + weak functions written in assembly. + ## Libraries `psxgpu`: -- In some *very rare* cases, `VSync()` seems to crash the system by performing - unaligned accesses for unknown reasons. +- `LoadImage()` and `StoreImage()` use DMA to transfer data to/from the GPU. + As the DMA channel is configured to transfer 8 words (32 bytes) at a time, + the length of the data *must* be a multiple of 32 bytes. Attempting to + transfer any data whose length isn't a multiple of 32 bytes will result in + `DrawSync()` hanging and never returning, however a warning will be printed + on the debug console. `psxspu`: -- Calls to `SpuSetTransferMode()` are ignored. SPU transfers are always - performed using DMA, which imposes limitations such as the data length having - to be a multiple of 64 bytes. +- `SpuInit()`, `SpuRead()` and `SpuWrite()` may take several seconds on MAME + due to the SPU status register being emulated incorrectly. They work as + expected on other emulators as well as on real hardware. `psxetc`: @@ -40,4 +48,4 @@ as they should, or untested on real hardware) and haven't yet been fixed. See [README.md in the examples directory](../examples/README.md#examples-summary). ----------------------------------------- -_Last updated on 2022-02-03 by spicyjpeg_ +_Last updated on 2022-08-21 by spicyjpeg_ |