ALU Register-Constant Operations
ALU
Instruction
Memory
A
D
A
B
Register
File
RA1
RD1
RD2
RA2
WE
WD
WA
+4
PC
Control
Logic
BSELALUFN
WERF
1
0
<PC> + 4
WERF
BSEL
ALUFN
00
raង:16>
rb:11>
C:0>
ADDC: rc <ra> + C
rcញ:21>
sign extended
to 32 bits
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