リスト42 リスト43 リスト44 リスト45

〔リスト42〕ANSI C準拠のコードの例（test71.c） 
	#include <stdio.h>
	int keisan (int x);
	int main(void)
	{
	 printf("%d",keisan(10));
	 printf("%d",keisan(10));
	 printf("%d",keisan(10));
	 printf("%d",keisan(10));
	 printf("%d",keisan(10));
	 return;
	}
	int keisan(int x)
	{
	 return x * x;
	}

〔リスト43〕test71.cから生成されたアセンブラ（test71.s） 
	 .file "test71.c"
	 .version "01.01"
	gcc2_compiled.:
	.section .rodata
	.LC0:
	 .string "%d"
	.text
	 .align 4
	.globl keisan
	 .type  keisan,@function
	keisan:
	 pushl %ebp
	 movl %esp,%ebp
	 movl 8(%ebp),%eax
	 imull %eax,%eax
	 movl %ebp,%esp
	 popl %ebp
	 ret
	.Lfe1:
	 .size  keisan,.Lfe1-keisan
	 .align 4
	.globl main
	 .type  main,@function
	main:
	 pushl %ebp
	 movl %esp,%ebp
	 subl $8,%esp
	 addl $-8,%esp
	 addl $-12,%esp
	 pushl $10
	 call keisan
	 pushl %eax
	 pushl $.LC0
	 call printf
	 addl $32,%esp
	 addl $-8,%esp
	 addl $-12,%esp
	 pushl $10
	 call keisan
	 pushl %eax
	 pushl $.LC0
	 call printf
	 addl $32,%esp
	 addl $-8,%esp
	 addl $-12,%esp
	 pushl $10
	 call keisan
	 pushl %eax
	 pushl $.LC0
	 call printf
	 addl $32,%esp
	 addl $-8,%esp
	 addl $-12,%esp
	 pushl $10
	 call keisan
	 pushl %eax
	 pushl $.LC0
	 call printf
	 addl $32,%esp
	 addl $-8,%esp
	 addl $-12,%esp
	 pushl $10
	 call keisan
	 pushl %eax
	 pushl $.LC0
	 call printf
	 movl %ebp,%esp
	 popl %ebp
	 ret
	.Lfe2:
	 .size  main,.Lfe2-main
	 .ident "GCC: (GNU) 2.95.3 20010315 (release)"

〔リスト44〕const属性を使用する例（test72.c） 
	#include <stdio.h>
	int keisan (int x) __attribute__ ((const));
	int main(void)
	{
	 printf("%d",keisan(10));
	 printf("%d",keisan(10));
	 printf("%d",keisan(10));
	 printf("%d",keisan(10));
	 printf("%d",keisan(10));
	 return;
	}
	int keisan(int x)
	{
	 return x * x;
	}

〔リスト45〕test72.cから生成されたアセンブラ2（test72.s） 
	 .file "test72.c"
	 .version "01.01"
	gcc2_compiled.:
	.section .rodata
	.LC0:
	 .string "%d"
	.text
	 .align 4
	.globl keisan
	 .type  keisan,@function
	keisan:
	 pushl %ebp
	 movl %esp,%ebp
	 movl 8(%ebp),%eax
	 imull %eax,%eax
	 movl %ebp,%esp
	 popl %ebp
	 ret
	.Lfe1:
	 .size  keisan,.Lfe1-keisan
	 .align 4
	.globl main
	 .type  main,@function
	main:
	 pushl %ebp
	 movl %esp,%ebp
	 subl $20,%esp
	 pushl %ebx
	 addl $-8,%esp
	 addl $-12,%esp
	 pushl $10
	 call keisan
	 addl $16,%esp
	 movl %eax,%ebx
	 pushl %ebx
	 pushl $.LC0
	 call printf
	 addl $-8,%esp
	 pushl %ebx
	 pushl $.LC0
	 call printf
	 addl $32,%esp
	 addl $-8,%esp
	 pushl %ebx
	 pushl $.LC0
	 call printf
	 addl $-8,%esp
	 pushl %ebx
	 pushl $.LC0
	 call printf
	 addl $32,%esp
	 addl $-8,%esp
	 pushl %ebx
	 pushl $.LC0
	 call printf
	 movl -24(%ebp),%ebx
	 movl %ebp,%esp
	 popl %ebp
	 ret
	.Lfe2:
	 .size  main,.Lfe2-main
	 .ident "GCC: (GNU) 2.95.3 20010315 (release)"