変数(auto,global)を制御変数にした繰り返しで、hello文字列をUSBに出力する

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#include <xc.h>	// test.c
#include "common.h"

__attribute__((address( 0x80005000 ))) void test_main (void);
void test_main(){
	int count=0xffff;//ローカルのauto変数
	for(count = 0; count < 3; count++){
		__asm__ ("NOP");
		_send_string("hello\r\n");//USBへ文字列送出
		__asm__ ("NOP");
	}
}

#include <xc.h>	// test.c
#include "common.h"

__attribute__((address( 0x80005000 ))) void test_main (void);
int count=0xffff;// グローバル変数
void test_main(){
	for(count = 0; count < 3; count++){
		__asm__ ("NOP");
		_send_string("hello\r\n");//USBへ文字列送出
		__asm__ ("NOP");
	}
}

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Disassembly of section _0620b64064179b48:

80005000 :
80005000:	27bdffe0 	addiu	sp,sp,-32
80005004:	afbf001c 	sw	ra,28(sp)
80005008:	afbe0018 	sw	s8,24(sp)
8000500c:	03a0f021 	move	s8,sp
80005010:	3402ffff 	li	v0,0xffff
80005014:	afc20010 	sw	v0,16(s8)
80005018:	08001413 	j	8000504c <.L2>
8000501c:	afc00010 	sw	zero,16(s8)
80005020:	00000000 	nop
80005024:	3c02a000 	lui	v0,0xa000
80005028:	344241a4 	ori	v0,v0,0x41a4
8000502c:	8c420000 	lw	v0,0(v0)
80005030:	3c038000 	lui	v1,0x8000
80005034:	0040f809 	jalr	v0
80005038:	24645080 	addiu	a0,v1,20608
8000503c:	00000000 	nop
80005040:	8fc20010 	lw	v0,16(s8)
80005044:	24420001 	addiu	v0,v0,1
80005048:	afc20010 	sw	v0,16(s8)



8000504c <.L2>:
8000504c:	8fc20010 	lw	v0,16(s8)
80005050:	28420003 	slti	v0,v0,3

80005054:	1440fff2 	bnez	v0,80005020 
80005058:	00000000 	nop


8000505c:	03c0e821 	move	sp,s8
80005060:	8fbf001c 	lw	ra,28(sp)
80005064:	8fbe0018 	lw	s8,24(sp)
80005068:	03e00008 	jr	ra
8000506c:	27bd0020 	addiu	sp,sp,32














80005080 <.LC0>:
80005080:	6c6c6568 	0x6c6c6568
80005084:	000a0d6f 	0xa0d6f

Disassembly of section _0626364064186f27:

80005000 :
80005000:	27bdffe8 	addiu	sp,sp,-24
80005004:	afbf0014 	sw	ra,20(sp)
80005008:	afbe0010 	sw	s8,16(sp)
8000500c:	03a0f021 	move	s8,sp
80005010:	3c028001 	lui	v0,0x8001

80005014:	08001414 	j	80005050 <.L2>
80005018:	ac408000 	sw	zero,-32768(v0)
8000501c:	00000000 	nop
80005020:	3c02a000 	lui	v0,0xa000
80005024:	344241a4 	ori	v0,v0,0x41a4
80005028:	8c420000 	lw	v0,0(v0)
8000502c:	3c038000 	lui	v1,0x8000
80005030:	0040f809 	jalr	v0
80005034:	24645098 	addiu	a0,v1,20632
80005038:	00000000 	nop
8000503c:	3c028001 	lui	v0,0x8001
80005040:	8c428000 	lw	v0,-32768(v0)
80005044:	24430001 	addiu	v1,v0,1
80005048:	3c028001 	lui	v0,0x8001
8000504c:	ac438000 	sw	v1,-32768(v0)

80005050 <.L2>:
80005050:	3c028001 	lui	v0,0x8001
80005054:	8c428000 	lw	v0,-32768(v0)
80005058:	28420003 	slti	v0,v0,3
8000505c:	1440ffef 	bnez	v0,8000501c 
80005060:	00000000 	nop

80005064:	03c0e821 	move	sp,s8
80005068:	8fbf0014 	lw	ra,20(sp)
8000506c:	8fbe0010 	lw	s8,16(sp)
80005070:	03e00008 	jr	ra
80005074:	27bd0018 	addiu	sp,sp,24

Disassembly of section .dinit:

80005078 <.dinit>:
80005078:	80008000 	lb	zero,-32768(zero)
8000507c:	00000004 	sllv	zero,zero,zero
80005080:	00000001 	movf	zero,zero,$fcc0
80005084:	0000ffff 	0xffff
80005088:	00000000 	nop
8000508c:	22222222 	addi	v0,s1,8738
80005090:	22222222 	addi	v0,s1,8738
80005094:	22222222 	addi	v0,s1,8738

Disassembly of section .rodata:

80005098 <.LC0>:
80005098:	6c6c6568 	0x6c6c6568
8000509c:	000a0d6f 	0xa0d6f