Trace Math Rule 4 . . . . . . . . . . . . . . . .

2-19

3.

Controlling Memory

 

 

Saving and Recalling Items . . . . . . . . . . . . . .

3-4

 

To select user memory . . . . . . . . . . . . . . .

3-6

 

To catalog memory . . . . . . . . . . . . . . . .

3-6

 

To save a ￿le . . . . . . . . . . . . . . . . . . .

3-6

 

To recall a ￿le . . . . . . . . . . . . . . . . . .

3-6

 

Erasing Memory . . . . . . . . . . . . . . . . . .

3-7

 

To erase ￿les . . . . . . . . . . . . . . . . . . .

3-9

 

To erase all memory except correction factors and

 

 

serial-number . . . . . . . . . . . . . . . . .

3-9

 

To erase all memory for security . . . . . . . . . . .

3-9

 

Protecting Memory . . . . . . . . . . . . . . . . .

3-10

 

To protect ￿les from erasure . . . . . . . . . . . .

3-10

 

Freeing Memory . . . . . . . . . . . . . . . . . . .

3-12

 

To free the greatest amount of internal memory . . . .

3-13

 

To reduce the size of user-de￿ned functions . . . . . .

3-13

4.

Monitoring System Operation

 

 

Monitoring System Operation . . . . . . . . . . . . .

4-4

 

Interrupt Process . . . . . . . . . . . . . . . . .

4-5

 

Analyzer Status-Byte Register . . . . . . . . . .

4-5

 

Service-Request Mask . . . . . . . . . . . . . .

4-6

 

Service-Request Examples . . . . . . . . . . . . .

4-7

 

Monitoring System Operation Without Using Service

 

 

Requests . . . . . . . . . . . . . . . . . . .

4-11

 

Debugging Programs . . . . . . . . . . . . . . . . .

4-12

 

To debug a program . . . . . . . . . . . . . . . .

4-12

5.

Creating Graphics

 

 

Clearing the Displa y . . . . . . . . . . . . . . . . .

5-4

 

To clear the display . . . . . . . . . . . . . . . .

5-4

 

Creating Graphics . . . . . . . . . . . . . . . . . .

5-5

 

To create a drawing . . . . . . . . . . . . . . . .

5-9

 

Drawing Grids . . . . . . . . . . . . . . . . . . .

5-10

 

Drawing Graphics Items . . . . . . . . . . . . . . .

5-11

 

To use a graphics item . . . . . . . . . . . . . . .

5-15

 

To delete a graphics item . . . . . . . . . . . . . .

5-15

 

Displaying Text . . . . . . . . . . . . . . . . . . .

5-16

 

To display text . . . . . . . . . . . . . . . . . .

5-19

Contents-2