root / target-sparc / TODO @ 79c63858
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TODO-list: |
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CPU common: |
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- Unimplemented features/bugs: |
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- Delay slot handling may fail sometimes (branch end of page, delay |
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slot next page) |
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- Atomical instructions |
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- CPU features should match real CPUs (also ASI selection) |
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- Allow choosing of NWINDOWS (CPU model specific and as a CPU feature) |
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- Optimizations/improvements: |
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- Condition code/branch handling like x86, also for FPU? |
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- Remove remaining explicit alignment checks |
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- Global register for regwptr, so that windowed registers can be |
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accessed directly |
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- Improve Sparc32plus addressing |
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- NPC/PC static optimisations (use JUMP_TB when possible)? (Is this |
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obsolete?) |
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- Synthetic instructions |
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- MMU model dependant on CPU model |
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- Select ASI helper at translation time (on V9 only if known) |
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- KQemu/KVM support for VM only |
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- Hardware breakpoint/watchpoint support |
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- Cache emulation mode |
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- Reverse-endian pages |
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- Faster FPU emulation |
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- Busy loop detection |
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|
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Sparc32 CPUs: |
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- Unimplemented features/bugs: |
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- Sun4/Sun4c MMUs |
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- Some V8 ASIs |
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Sparc64 CPUs: |
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- Unimplemented features/bugs: |
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- Interrupt handling |
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- Secondary address space, other MMU functions |
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- Many V9/UA2005/UA2007 ASIs |
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- Rest of V9 instructions, missing VIS instructions |
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- IG/MG/AG vs. UA2007 globals |
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- Full hypervisor support |
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- SMP/CMT |
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- Sun4v CPUs |
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- Optimizations/improvements: |
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- Use TCG logic ops for VIS when possible |
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Sun4: |
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- To be added |
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Sun4c: |
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- A lot of unimplemented features |
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- Maybe split from Sun4m |
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|
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Sun4m: |
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- Unimplemented features/bugs: |
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- Hardware devices do not match real boards |
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- Floppy does not work |
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- Missing keys, sendkey support for all keys |
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- CS4231 (DMA, make sound, make available for PC) |
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- Add cg6, bwtwo |
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- Arbitrary resolution support |
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- PCI for MicroSparc-IIe |
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- JavaStation machines |
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- SBus slot probing, FCode ROM support |
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- SMP probing support |
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- Interrupt routing does not match real HW |
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- SuSE 7.3 keyboard sometimes unresponsive |
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- Gentoo 2004.1 SMP does not work |
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- SS600MP ledma -> lebuffer |
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- Type 5 keyboard |
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- Less fixed hardware choices |
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- DBRI audio (Am7930) |
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- BPP parallel |
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- Diagnostic switch |
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- ESP PIO mode |
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|
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Sun4d: |
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- A lot of unimplemented features: |
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- SBI |
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- IO-unit |
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- Maybe split from Sun4m |
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|
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Sun4u: |
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- Unimplemented features/bugs: |
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- Interrupt controller |
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- PCI/IOMMU support (Simba, JIO, Tomatillo, Psycho, Schizo, Safari...) |
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- SMP |
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- Happy Meal Ethernet, flash, I2C, GPIO |
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- A lot of real machine types |
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|
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Sun4v: |
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- To be added |