SX Embedded Controller Instruction

DECSZ fr
Description:	Decrement fr , skip if zero
Operation:	-- fr == 0 ? PC++
Flags affected:	none
Registers affected:	fr PC
Sources referenced:	fr
Cycles:	1
Opcode:
Details:	SX Users Manual page # 83
Microchip PIC syntax:	DECFSZ fr,1
Notes: