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lxdream.org :: lxdream/STATUS
lxdream 0.9.1
released Jun 29
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filename STATUS
changeset 1047:e29dd1564277
prev896:433ac65ca5eb
author nkeynes
date Sat Jun 27 10:43:53 2009 +0000 (10 years ago)
permissions -rw-r--r--
last change Remove 'no VMU' line
file annotate diff log raw
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Current status
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==============
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General issues
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  - Slow 
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  - No I/O timing whatsoever except for video events.
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    (ie DMA, rendering, GD-Rom operations need to take > 0 ms to complete)
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SH4 Core
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  + Base instruction set
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  - no FPU exceptions
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  - Not remotely cycle-correct timing
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SH4 On-chip peripherals 
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  BSC
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    * Not implemented except for PCTRA/PDTRA, and that part is quite dodgy.
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  CPG
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    * Complete?
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  DMAC
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    * Implemented to extent needed by ASIC DMA, not fully complete
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  INTC
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    * Complete?
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  RTC
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    * Not implemented
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  SCI
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    * Not implemented (not even hooked up in the hardware?)
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  SCIF
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    * Complete? (not heavily tested)
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  TMU
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    * Complete?
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  UBC
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    * Not implemented
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AICA SPU
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  ARM core
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    + Base instruction set (Complete?)
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    - No thumb support
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    - No system coprocessor support
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    - No cycle-correct timing
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  DSP
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    + Basic sound generation
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    - Really bad sound
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    - No waveform support
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    - No LFO support
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PVR2 GPU
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  TA
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    - Functionally complete
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    - Some bugs/error behaviour not implemented
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    - No timing support
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  Render
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    + Basic opaque and translucent polygon support
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    + Depth buffer, alpha blend, most poly modes
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    + Opaque shadow volumes
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    - Basic translucent poly sorting
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    - Y-scaler
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    - No modifier volumes
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  Texture
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    + All texture formats supported except bump maps
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GD-Rom
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  IDE interface
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    + Supports Ident, Set feature, and Packet (and no other IDE commands)
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    + Supports PIO and DMA modes
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  GD-Rom interface
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    + Supports Test ready, Ident, Read TOC, Read Session info, Sense request, and Read CD
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      commands
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    - other 20-odd commands not supported
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Maple
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  + Maple bus complete?
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  + Standard DC controllers
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  - No dynamic timing
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Network
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  - Not implemented
.