Trace (Notes)
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Use the Trace (T) command to trace into calls. To execute calls
without tracing into them, use the Program Step (P) command
instead. Both commands execute DOS function calls without tracing
into them. Although CodeView cannot trace into DOS function calls
directly, it can trace through BIOS calls in Assembly or Mixed
mode.
See: ◄Program Step (P) Command-Window Command►
◄Source Display Mode (S) Command-Window Command►
◄Options Menu: Source Window Command►
Since the Trace command uses the hardware trace mode of the
8086 family of processors, you can also trace instructions stored
in read-only memory (ROM). However, the Program Step command
does not work in ROM; in this case, it has the same effect as the
Go (G) command.
See: ◄Program Step (P) Command-Window Command►
◄Go (G) Command-Window Command►
In OS/2 programs, CodeView cannot automatically trace into code
segments or dynamic-link libraries (DLLs) defined with the
NONCONFORMING and IOPL attributes. However, you can set a
breakpoint on the function name, then trace into the function
after reaching the breakpoint.
See: ◄I/O Privilege Code Attributes (LINK)►
◄Conforming Code Attributes (LINK)►
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