Recap: b Instructions and Formats

OPCODE

rc

ra

rb

unused

6

5

5

5

11

Form 1:

OPCODE

rc

ra

literal C (signed)

6

5

5

16

Form 2:

ALU operations with two

source registers

ALU operations with one

source register and constant

Loads and stores

Branches and Jumps

ADD(ra, rb, rc)

SUB(ra, rb, rc)

ADDC(ra, const, rc)

LD(ra, C, rc)

ST(rc, C, ra)

BNE(ra, label, rc)

JMP(ra, rc)

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