Code Generation/Exercise 5: Difference between revisions
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Consider the following C function: | Consider the following C function: | ||
<c> | <source lang="c"> | ||
int gcd(int a, int b) { | int gcd(int a, int b) { | ||
static int temp = 0; | static int temp = 0; | ||
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return b; | return b; | ||
} | } | ||
</ | </source> | ||
== Postfix Code == | == Postfix Code == | ||
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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"> | ||
</ | </source> | ||
}} | }} | ||
== Compiling and Running == | == Compiling and Running == | ||
To compile the Postfix code directly, [[pf2asm]] can be used: | To compile the Postfix code directly, [[Compiladores/Projecto de Compiladores/Compiladores Exemplo|pf2asm]] can be used: | ||
pf2asm gcd.pf | pf2asm gcd.pf | ||
Latest revision as of 16:52, 6 May 2019
The Original Code
Consider the following C function:
int gcd(int a, int b) {
static int temp = 0;
if (temp) temp = swap(&a, &b);
while (1) {
a %= b;
if (a == 0) break;
b %= a;
if (b == 0) return a;
}
return b;
}
Postfix Code
The Postfix code for the above function is as follows:
| Postfix code |
|---|
Compiling and Running
To compile the Postfix code directly, pf2asm can be used:
pf2asm gcd.pf yasm -felf gcd.asm