TODO list
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[edit] invokevirtual
Optimization: store argument count and index into MVB in the 16-bit operand. Resulting limit: maximum of 2048 methods per class.
[edit] subtype checks and interface tables
Optimization: Implement constant time subtype checks and compress interface tables.
See Constant time subtype checks
[edit] long/double fields and arrays with GC redirection
use hardware for long versions of get/putfield and array access to use the GC copy redirection. When write access to fields goes only via putfield/static we can simplify the redirection.
Also change (after OEBB stabilizes) the access in the GC write barrier to Native.putfield().
[edit] Interrupt mask for CMP
The HWO SysDevice contains a static field for the interrupt mask which is not a good idea for a CMP system.
[edit] IO device mapping
To reduce resource usage (data MUX in scio_*.vhd) make a mapping from IO addresses to select numbers.
- Keep one free slot to map the USB device to a dummy read_cnt="00" device
- Can we reduce the number of scio_*.vhd devices with some generate and generic?
[edit] Documentation
- Generate an actual getting started from the handbook for the web sites
- Add microcode docu for stcp
[edit] Reset
- fetch.vhd jfetch is read from the ROM, but the value is not defined on reset - is an issue in the Actel
