HP -28S Manual page 252

For the first example, insert HALT as the first command in FIB2.
Clear the stack and select the USER menu .
• , CLEAR I
13:
I
' USER
1~IiJDIDilII1IIIlmiI
_ _
Use VISIT to return FIB2 to the command line.
['] FIB2 .'vISITI
Insert the HALT command.
[EJ c:ill§] .,
CONTRL I HALT
Store the edited version of FIB2.
'ENTER I
I
I :
n
IF
n
1
:!f
THEN
n
«
HALT
.~ n
«
Calculate Fl' At first, nothing happens except that the
0
annunciator
appears.
'USER I
1 FIB2
Select the PROGRAM CONTROL menu and execute SST
(single-step).
WJ.tch the top line of the display to see the first step displayed before
it's executed .
• , CONTRLI
SST
Note that
'*
n constitutes one step; Pstep" is a logical unit rather than
simply the next object in the program.
28: Programming Examples 251