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e23069923b
A few PKE instructions even run correctly! Next missing function of
interest: FIFO pruning.
* sky-pke.c (pke_issue): Take extra SIM_DESC argument.
(pke_attach): Attach correct PKE0/PKE1 device. Open trace file if
VIF{0,1}_TRACE_FILE env. var. is defined.
(pke_io_write_buffer): Classify words in FIFO quadword. Use
kludgey sim_core routines to access DMA registers.
(pke_pc_advance): Add PKEcode classification. Correct DMA tag
skipping. Emit trace records.
(pke_pc_fifo): Add PKEcode operand classification.
(pke_check_stall): Perform stall checks against updated register
scheme.
(pke_code_unpack): Correct operand-count calculation.
(pke_code_stmask): Correct instruction skipping.
* sky-pke.h (PKE_MEM_WRITE, PKE_MEM_READ): New kludge macros.
(BIT_MASK_BTW): Corrected off-by-one error.
(enum wordclass): Classify words in a FIFO quadword.
* sky-dma.c (dma_io_read_buffer): Correct address checking assertions.
* sky-engine.c (engine_run): Pass along SIM_DESC to PKE
instruction issue code.