Texas Instruments TMS320C54x User Manual page 200

Producing Messages in Macros
Example 5–14. Producing Messages in a Macro
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 000000
1
1
1
1
1
1
1
1
1 000000 1002
1 000001 1101
1 000002 F500
1
17
18 000003
1
1
1
***** USER ERROR ***** – : ERROR –– Missing Parameter
1
1 Error, No Warnings
5-20
testparam .macro x,y
.if ($symlen(x) == 0)
.emsg "ERROR –– Missing Parameter"
.mexit
.elseif ($symlen(y) == 0)
.emsg "ERROR == Missing Parameter"
.mexit
.else
LD y, A
LD x, B
ADD A, B
.endif
.endm
testparam 1,2
.if ($symlen(x) == 0)
.emsg "ERROR –– Missing Parameter"
.mexit
.elseif ($symlen(y) == 0)
.emsg "ERROR == Missing Parameter"
.mexit
.else
LD 2, A
LD 1, B
ADD A, B
.endif
testparam
.if ($symlen(x) == 0)
.emsg "ERROR –– Missing Parameter"
.mexit