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Paul Mackerras authored
This implements the CFAR SPR as a slow SPR stored in 'ctrl'. Taken branches and rfid update it to the address of the branch or rfid instruction. To simplify the logic, this makes rfid use the branch logic to generate its redirect (requiring SRR0 to come in to execute1 on the B input and SRR1 on the A input), and the masking of the bottom 2 bits of NIA is moved to fetch1. Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
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