HP 3000 Manuals HP 3000 Manuals
Executing a Translated Section
The following diagram indicates that the NM program counter (pc >) is
located at the start (node point) of a NM translated section of code.
When all of the instructions in this section are executed, (that is, when
pc advances to the next node point at PROC+%6), then the state of the
machine is exactly the same as if the four original CM object code
instructions had been executed (PROC+%2 through PROC+%6).
Original CM Translated
Object Code Object Code
Translated
Into
CM Instructions NM Instructions
+-------------+
| PROC+%0 | N
| |
| ----------- | ----+ | |
N | PROC+%2 | | | |
| PROC+%3 | +---- | ----------- |
| PROC+%4 | pc > | PROC+%2 | N
| PROC+%5 | | |
| ----------- | ----+ | Translated |
| | Section |
| | |
+---- | ----------- |
| PROC+%6 | N
| |
| |
| |
| ----------- |
| PROC+%13 | N
| |
| |
| |
| |
| |
| |
| |
+-------------+
Note that if, for example, only half of the NM translated section has
been executed, it is not equivalent to emulating the first half of the
original CM object code instructions.
NOTE There may not be any correspondence between the relative position
and sizes of emulated versus translated code sections.