|
| |
Jump if Less
|
86/88 |
Y |
186 |
Y |
286 |
Y |
386 |
Y |
486 |
Y |
JL short_label |
|
Ovfl |
N |
Dir |
N |
Int |
N |
Trap |
N |
Sign |
N |
Zero |
N |
Aux |
N |
Prty |
N |
Carry |
N |
Used after a CMP or SUB instruction, JL transfers control to short-
label if the first operand is less than the second. (Both operands are
treated as signed numbers.) The target of the jump must be within -
128 to +127 bytes of the next instruction.
Notes: JNGE, Jump if Not Greater or Equal, is the same
instruction as JL.
JB, Jump if Below, should be used when comparing
unsigned numbers.
JL, Jump if Less, should be used when comparing
signed numbers.
------------------------------------ Timing ----------------------------------
OpCode Instruction 386 286 86
7C cb JL rel8 7+m,3 7,3 16,4
0F 8C cw/cd JL rel16/32 7+m,3
------------------------------------ Logic -----------------------------------
Jump if (SF <> OF)
See Also JNGE JB JGE JNAE |