(→Compiling and Running) |
(→Postfix Code) |
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| Line 5: | Line 5: | ||
<source lang="c"> | <source lang="c"> | ||
const char *a = "batata"; | const char *a = "batata"; | ||
| − | int main { | + | int main() { |
prints(a); | prints(a); | ||
return 0; | return 0; | ||
| Line 20: | Line 20: | ||
ALIGN | ALIGN | ||
LABEL _L123 ;; automatic label | LABEL _L123 ;; automatic label | ||
| − | + | SSTRING "batata" | |
;--- declaring the global variable "a" | ;--- declaring the global variable "a" | ||
DATA | DATA | ||
ALIGN | ALIGN | ||
| + | GLOBAL a, OBJ | ||
LABEL a | LABEL a | ||
SADDR _L123 ;; automatic label | SADDR _L123 ;; automatic label | ||
| Line 30: | Line 31: | ||
TEXT | TEXT | ||
ALIGN | ALIGN | ||
| − | + | GLOBAL _main, FUNC | |
LABEL _main | LABEL _main | ||
ENTER 0 | ENTER 0 | ||
| Line 36: | Line 37: | ||
ADDR a | ADDR a | ||
LDINT | LDINT | ||
| − | + | EXTERN prints | |
CALL prints | CALL prints | ||
TRASH 4 | TRASH 4 | ||
Consider the following C function:
const char *a = "batata";
int main() {
prints(a);
return 0;
}
The Postfix code for the above function is as follows:
| [Expand] Postfix code |
|---|
To test the second program directly, pf2asm can be used:
pf2asm batata.pf yasm -felf batata.asm ld -o batata batata.o -lrts