"A1114E: Expected register relative expression" 是什么意思？

Question

您好，我正在尝试从 c 调用汇编程序子例程并遇到此错误。在 Arm 网站上，只是说存在这个错误。 C代码

    #include <stdint.h>
extern void out_word(uint32_t out_address, uint32_t out_value);
extern uint32_t in_word(uint32_t in_address);
int main(void){
        uint32_t value = in_word(0x60000200);
        uint32_t address = 0x60000100;
        out_word(address,value);
    return (0);
}

汇编代码

                PRESERVE8
                AREA myCode, CODE, READONLY
                EXPORT in_word
                EXPORT out_word

in_word         PUSH {R1-R7}
                LDR R1, R0 ; line which produces the problem
                LDR R0, [R1]
                POP {R1-R7}
                BX LR
                
                
out_word        STR R1, [R0]
                BX LR
                   
                END

Answer 1

您使用了错误的指令。 LDR - 加载立即偏移量、预索引立即偏移量或 post-索引立即偏移量

您需要使用mov指令

Answer 2

最终有效的解决方案

                PRESERVE8
                AREA myCode, CODE, READONLY
                EXPORT in_word
                EXPORT out_word

in_word         LDR R0, [R0]
                BX LR
                
                
out_word        STR R1, [R0]
                BX LR
                   
                END

"A1114E: Expected register relative expression" 是什么意思？

What does "A1114E: Expected register relative expression" mean?

assembly

arm

addressing-mode