(→Postfix Code) |
|||
Line 43: | Line 43: | ||
RET | RET | ||
</asm> | </asm> | ||
+ | |||
+ | == Compiling and Running == | ||
+ | |||
+ | If you start from the first example, the S9 compilation process is as follows: | ||
+ | |||
+ | * s9 batata.s9 | ||
+ | * yasm -felf batata.asm | ||
+ | * ld -o batata batata.o -lrts | ||
+ | |||
+ | If you want to test the second program directly, you may use [[pf2asm]]: | ||
+ | |||
+ | * pf2asm batata.pf | ||
+ | * yasm -felf batata.asm | ||
+ | * ld -o batata batata.o -lrts | ||
[[category:Compilers]] | [[category:Compilers]] | ||
[[category:Teaching]] | [[category:Teaching]] |
Consider the following S9 function:
<c> string a = "batata"; int s9() -> 0 {
a!
} </c>
The Postfix code for the above function is as follows:
<asm>
RODATA ALIGN LABEL _L123 ;; automatic label STR "batata"
DATA ALIGN LABEL a ID _L123 ;; automatic label
TEXT ALIGN GLOBL _main, FUNC LABEL _main ENTER 0
ADDRV a ;; ADDRV = ADDR+LOAD EXTRN prints CALL prints TRASH 4
INT 0 POP LEAVE RET </asm>
If you start from the first example, the S9 compilation process is as follows:
If you want to test the second program directly, you may use pf2asm: