Description

This instruction tests a single bit in a register and skips the next instruction if the bit is cleared.

Operation:

 

Operation:

(i)

If Rr(b) = 0 then PC ← PC + 2 (or 3) else PC ← PC + 1

 

Syntax:

Operands:

Program Counter:

(i)

SBRC Rr,b

0 ≤ r ≤ 31, 0 ≤ b ≤ 7

PC ← PC + 1, Condition false - no skip

PC ← PC + 2, Skip a one word instruction

PC ← PC + 3, Skip a two word instruction

16-bit Opcode:

1111 110r rrrr 0bbb