Intel 8XC196NP, 80C196NU, Microcontroller Table A-4. PSW Flag Setting Symbols, Symbol Description

INSTRUCTION SET REFERENCE

Table A-3 shows the effect of the PSW flags or a specified condition on conditional jump instruc- tions. Table A-4 defines the symbols used in Table A-6 to show the effect of each instruction on the PSW flags.

Table A-3. Effect of PSW Flags or Specified Conditions on Conditional Jump Instructions

Instruction	Jumps to Destination if	Continues if
DJNZ	decremented byte ≠ 0	decremented byte = 0
DJNZW	decremented word ≠ 0	decremented word = 0
JBC	specified register bit = 0	specified register bit = 1
JBS	specified register bit = 1	specified register bit = 0
JNC	C = 0	C = 1
JNH	C = 0 OR Z = 1	C = 1 AND Z = 0
JC	C = 1	C = 0
JH	C = 1 AND Z = 0	C = 0 OR Z = 1
JGE	N = 0	N = 1
JGT	N = 0 AND Z = 0	N = 1 OR Z = 1
JLT	N = 1	N = 0
JLE	N = 1 OR Z = 1	N = 0 AND Z = 0
JNST	ST = 0	ST = 1
JST	ST = 1	ST = 0
JNV	V = 0	V = 1
JV	V = 1	V = 0
JNVT	VT = 0	VT = 1 (clears VT)
JVT	VT = 1 (clears VT)	VT = 0
JNE	Z = 0	Z = 1
JE	Z = 1	Z = 0

.

	Table A-4. PSW Flag Setting Symbols
Symbol	Description

✓The instruction sets or clears the flag, as appropriate.

—The instruction does not modify the flag.

↓The instruction may clear the flag, if it is appropriate, but cannot set it.

−The instruction may set the flag, if it is appropriate, but cannot clear it.

1	The instruction sets the flag.
0	The instruction clears the flag.

?The instruction leaves the flag in an indeterminate state.

A-5