Code Generation/Example 2: Difference between revisions

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(New page: == The Original Code == Consider the following S9 function: <c> string a = "ola"; int s9() -> 0 { a! } </c> == Postfix Code == The Postfix code for the above func...)
 
(Redirected page to ist:Code Generation/Example 2)
 
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== The Original Code ==
#REDIRECT [[ist:Code Generation/Example 2]]
 
Consider the following [[S9 Language|S9]] function:
 
<c>
string a = "ola";
int s9() -> 0 {
      a!
}
</c>
 
== Postfix Code ==
 
The Postfix code for the above function is as follows:
 
<asm>
;--- declaring the string literal
RODATA
ALIGN
LABEL zum  ;; deveria ser automático
STR "ola"
;--- declaring the global variable "a"
DATA
ALIGN
LABEL a
ID zum  ;; deveria ser automático
 
;--- this is the main function (note that "s9" translates to RTS's "_main")
TEXT
ALIGN
GLOBL _main, FUNC
LABEL _main
ENTER 0
ADDRV a
EXTRN prints
CALL prints
TRASH 4
INT 0
POP
LEAVE
RET
</asm>
 
[[category:Compilers]]
[[category:Teaching]]

Latest revision as of 18:12, 6 December 2018

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