(→Postfix Code) |
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| Line 3: | Line 3: | ||
Consider the following [[S9 (language)|S9]] function: | Consider the following [[S9 (language)|S9]] function: | ||
| − | <c> | + | <source lang="c"> |
string a = "batata"; | string a = "batata"; | ||
int s9() -> 0 { | int s9() -> 0 { | ||
a! | a! | ||
} | } | ||
| − | </ | + | </source> |
== Postfix Code == | == Postfix Code == | ||
| Line 14: | Line 14: | ||
The Postfix code for the above function is as follows: | The Postfix code for the above function is as follows: | ||
{{CollapsedCode|Postfix code| | {{CollapsedCode|Postfix code| | ||
| − | <asm> | + | <source lang="asm"> |
;--- declaring the string literal | ;--- declaring the string literal | ||
RODATA | RODATA | ||
| Line 43: | Line 43: | ||
LEAVE | LEAVE | ||
RET | RET | ||
| − | </ | + | </source> |
}} | }} | ||
Consider the following S9 function:
string a = "batata";
int s9() -> 0 {
a!
}
The Postfix code for the above function is as follows:
| Postfix code |
|---|
;--- declaring the string literal
RODATA
ALIGN
LABEL _L123 ;; automatic label
STR "batata"
;--- declaring the global variable "a"
DATA
ALIGN
LABEL a
SADDR _L123 ;; automatic label
;--- this is the main function (note that "s9" translates to RTS's "_main")
TEXT
ALIGN
GLOBL _main, FUNC
LABEL _main
ENTER 0
ADDR a
LDINT
EXTRN prints
CALL prints
TRASH 4
INT 0
STFVAL32
LEAVE
RET
|
To test the first example, the S9 compilation process is as follows:
s9 batata.s9 yasm -felf batata.asm ld -o batata batata.o -lrts
To test the second program directly, pf2asm can be used:
pf2asm batata.pf yasm -felf batata.asm ld -o batata batata.o -lrts