
9. C-PROGRAM MEMORY DISPLAY
AND DEBUG FUNCTION
B–61863E–1/06
APPLICATION
PROGRAMMING GUIDE
424
This function displays the contents of GDT (Global Descriptor Table) in
order to confirm the GDT data set by a C program. This function can also
be used to dump the memory of a specified descriptor table.
Soft keys correspond to functions as follows:
NO.SRH M.DUMP
GDT USRMEM
RET
DEBUG
INPUTSEARCH
WORDBYTE D.WORD
RET
NEXT
(1) Press the [GDT] soft key to display C-program GDT data on the CRT
display as shown in Figure 9.1.1(a).
(2) Press the [NO.SRH] soft key to search for a particular GDT table No.
(3) Press the [M.DUMP] soft key to dump the memory of the first GDT
No. currently displayed.
(4) Press the [NEXT] soft key on the memory dump display screen, then
press [BYTE], [WORD], or [D.WORD] to select the data type. Each
of these keys corresponds respectively to bytes (1-byte), words
(2-bytes), and double words (4-bytes). (See Figure 9.1.1(b).)
(5) When keep-relay K17/K900 bit4 = 1, the RAM contents shown on the
memory dump display screen can be modified by moving the cursor
to the data to modify and entering data of the specified data type.
WARNING
Depending on the data entered, the user program may not
operate correctly and a system error may occur. Be sure to
exercise sufficient care when setting data.
9.1
GDT INFORMATION
DISPLAY
9.1.1
Screen Display and
Operations