HP 3000 Manuals HP 3000 Manuals
The Node Functions
Four special functions (CMNODE, CMTONMNODE, NMNODE, NMTOCMNODE) are
provided to locate the nearest "previous" and "next" nodes for translated
code.
The following diagram shows CM object code loaded at %12.0 with its
corresponding NM translated code loaded at $1c.34b0. Node points are
flagged with an "N".
Original CM Translated
Object Code Object Code
CM Instructions NM Instructions
Seg.Off Sid.Off
+-------------+ +-------------+
%12.0 N | PROC+%0 | $1c.34b0 N | PROC+%0 |
%12.1 | PROC+%1 | $1c.34b4 | |
%12.2 N | PROC+%2 | ---+ $1c.34b8 | |
%12.3 | PROC+%3 | | $1c.34bc | |
%12.4 | PROC+%4 | +--> $1c.34c0 N | PROC+%2 |
%12.5 | PROC+%5 | $1c.34c4 | |
%12.7 N | PROC+%6 | <--+ $1c.34c8 | |
%12.10 | PROC+%7 | | $1c.34cc | |
%12.11 | PROC+%10 | | $1c.34d0 | |
%12.12 | PROC+%11 | +--- $1c.34d4 N | PROC+%6 |
%12.13 | PROC+%12 | $1c.34d8 | |
%12.14 N | PROC+%13 | $1c.34dc | |
%12.15 | PROC+%14 | $1c.34e0 | |
%12.16 | PROC+%15 | $1c.34e4 N | PROC+%13 |
%12.17 | PROC+%16 | $1c.34e8 | |
+-------------+ $1c.34ec | |
$1c.34f0 | |
$1c.34f4 | |
$1c.34f8 | |
$1c.34fc | |
$1c.3500 +-------------+
CMNODE(%12.4) = %12.2 NMNODE($1c.34dc) = $1c.34d4
CMNODE(%12.4,"prev") = %12.2 NMNODE($1c.34dc,"prev") = $1c.34d4
CMNODE(%12.4,"next") = %12.7 NMNODE($1c.34dc,"next") = $1c.34e4
CMTONMNODE(%12.4) = $1c.34c0 NMTOCMNODE($1c.34dc) = %12.7
CMTONMNODE(%12.4,"prev") = $1c.34c0 NMTOCMNODE($1c.34dc,"prev") = %12.7
CMTONMNODE(%12.4,"next") = $1c.34d4 NMTOCMNODE($1c.34dc,"next") = %12.14