|
| |
Array Index Bound Check
|
86/88 |
N |
186 |
Y |
286 |
Y |
386 |
Y |
486 |
Y |
BOUND source, limit |
|
Ovfl |
N |
Dir |
N |
Int |
N |
Trap |
N |
Sign |
N |
Zero |
N |
Aux |
N |
Prty |
N |
Carry |
N |
Array index in source register is checked against upper and lower
bounds in memory source. The first word located at "limit" is
the lower boundary and the word at "limit+2" is the upper array bound.
Interrupt 5 occurs if the source value is less than or higher than
the source.
------------------------------------ Timing ----------------------------------
OpCode Instruction 386 286 86
62/r BOUND r16, m16&16 10 13
62/r BOUND r32, m32&32 10
------------------------------------ Logic -----------------------------------
If source < lower bound OR source > upper bound then
int 05h
See Also Flags |