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Instruction Set

3.4.6.24 JC, JHS

JC Jump if carry set

JHS Jump if higher or same

Syntax JC label

JHS label

Operation If C = 1: PC + 2 offset → PC

If C = 0: execute following instruction

Description The status register carry bit (C) is tested. If it is set, the 10-bit signed offset contained in

the instruction LSBs is added to the program counter. If C is reset, the next instruction

following the jump is executed. JC (jump if carry/higher or same) is used for the

comparison of unsigned numbers (0 to 65536).

Status Bits Status bits are not affected.

Example The P1IN.1 signal is used to define or control the program flow.

BIT.B #02h,&P1IN ; State of signal -> Carry

JC PROGA ; If carry=1 then execute program routine A

...... ; Carry=0, execute program here

Example R5 is compared to 15. If the content is higher or the same, branch to LABEL.

CMP #15,R5

JHS LABEL ; Jump is taken if R5 >= 15

...... ; Continue here if R5 < 15

SLAU144J–December 2004–Revised July 2013 CPU

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