This section describes the combination symbols "~" and "$", which are used to link strings in macros.
- | The concatenation symbol concatenates "strings composed of numbers and characters similar to alphabet" with each other within a macro body.
At macro expansion, the "strings" on the left and right sides of the concatenation symbol are concatenated and the concatenation symbol itself disappears after concatenating the strings. |
- | The concatenation symbol replaces formal parameters with arguments before concatenation. |
- | The character "~" can only be used as a combination symbol in a macro definition. |
- | The "" in a character string and comment is simply handled as data. |
abc .macro x
abc~x: mov r10, r20
sub def~x, r20
.endm
abc STU
|
[Development result]
abcSTU: mov r10, r20
sub defSTU, r20
|
abc .macro x, xy
a_~xy: mov r10, r20
a_~x~y: mov r20, r10
.endm
abc necel, STU
|
[Development result]
a_STU: mov r10, r20
a_stuy: mov r20, r10
|
abc .macro x, xy
~ab: mov r10, r20
.endm
abc stu, STU
|
[Development result]
ab: mov r10, r20
|