IAR C语言嵌入汇编问题

2022-05-26 01:09:00

多条语句的格式如下：
void QuickCopy(INT32U *addr, INT32U len, INT32U data)
{
__asm("STMFD SP!, { R4 - R11 }\n"
"ADD R1, R0, R1\n"
"MOV R4, R2\n"
"MOV R5, R2\n"
"MOV R6, R2\n"
"MOV R7, R2\n"
"MOV R8, R2\n"
"MOV R9, R2\n"
"MOV R10, R2\n"
"MOV R11, R2\n"
"LOOP:nop\n"
"STMIA R0!, { R4 - R11 }\n"
"CMP R1, R0\n"
"BNE LOOP\n"
"LDMIA SP!, { R4 - R11 }\n"
"BX LR\n");
}
注意多行之间使用换行符 \n 隔开，最后一个括号要有逗号，否则编译出错；