Ratrob

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Fetch Engine

Branch Predictor I/F

• BPredRecoveryType OUTPUT

BoolType	miss	(1 bits)
BoolType	taken	(1 bits)
AddrType	target_PC	(32 bits)
AddrType	addrs	(32 bits)
BPredStateType	state	(9 bits)

• Status Flag OUTPUT

BoolType

rr_empty

(1 bits)

Crack I/F

• Constants: Cluster IDs

const ClusterIdType	CLUSTER_AUNIT	2'b00
const ClusterIdType	CLUSTER_AUNIT	2'b01
const ClusterIdType	CLUSTER_AUNIT	2'b10
const ClusterIdType	CLUSTER_AUNIT	2'b11

• LRegType

Range of Register
0..31	integer logical register
32..63	FP logical register
64..74	special use registers

Special Use Registers Definitions
const LRegType	LOG_ZERO	7'b0000000;
const LRegType	LOG_CEXC	7'd64;
const LRegType	LOG_ PSR	7'd65;
const LRegType	LOG_ WIM	7'd66;
const LRegType	LOG_ CWP	7'd67;
const LRegType	LOG_ TBR	7'd68;
const LRegType	LOG_ Y	7'd69;
const LRegType	LOG_ FSR	7'd70;
const LRegType	LOG_ ICC	7'd71;
const LRegType	LOG_ FCC	7'd672;
const LRegType	LOG_ PC	7'd73;
const LRegType	LOG_ TMP	7'd74;