BASIC stamp manual v2.2

5: BASIC Stamp Command Reference – DEBUG

BASIC Stamp Syntax and Reference Manual 2.2 • www.parallax.com • Page 167

doesn't end with 0, the BASIC Stamp will read and output all RAM

locations.

To specify a fixed-width format for the STR formatter, use the form

STR x\n; where x is the byte array and n is the number of characters to

print. Changing the DEBUG line in the example above to: DEBUG STR

x\2 would display "AB" on the screen.

If you need to display the same ASCII character multiple times, the REP

(repeat) formatter can help. REP takes the form: REP x\n ;where x is the

character and n is the number of times to repeat it. For example:

DEBUG REP "-"\10

would display 10 hyphens on the screen, "----------".

Since individual DEBUG instructions can grow to be fairly complicated,

and since a program can contain many DEBUGS, you’ll probably want to

control the character positioning of the Debug Terminal screen. DEBUG

supports a number of different control characters, some with pre-defined

symbols (see Table 5.13).

All of the control characters have pre-defined symbols associated with

them. In your DEBUG commands, you can use those symbols, for

example: DEBUG "Hello", CR displays "Hello" followed by a carriage

return. You can always use the ASCII value for any of the control

characters, however. For example: DEBUG "Hello", 13 is exactly the

same as the code above.

The Move To (x,y) control character allows positioning to a specific

column and row of the display. If the Debug Terminal receives this

character, it expects to see an x and y position value to follow (in the next

two characters received). The following line moves the cursor to column

number 4 in row number 5 and displays "Hello":

' {$PBASIC 2.5}

DEBUG CRSRXY, 4, 5, "Hello"

FIXED-WIDTH STRINGS.

EPEATING CHARACTERS.

PECIAL CONTROL CHARACTERS.