MCS6502功能中的回调不会在ESP32上的Arduino中编译，但会在CodeBlocks C File中编译

Question

我知道这是一个菜鸟问题，我对C ++不熟悉。 我的理解是，Arduino代码在C ++中编译，这就是导致编译问题的原因。

下面的代码将在CodeBlocks中罚款，并将正确运行，但是，如果我使用相同的代码没有任何修改，则会在编译时产生错误。

HIRES是.ino文件，

#include "MCS6502.h"

int8_t ram [65535];
//////CALL BACK FUNCTION ///////////////////////////////////////////////
uint8_t readBytesFunction(uint16_t add) {
    uint8_t tc = 5;
    tc = ram[add];
    return tc;
}
//////CALL BACK FUNCTION ///////////////////////////////////////////////
void writeBytesFunction(uint16_t add,uint8_t bb)  {
}
void setup()
{
    Serial.begin(115200);
    Serial.println();

    ///CODE BELOW WILL COMPILE AND RUN IN CODEBLOCKS BUT WILL NOT COMPILE IN ARDUINO

    /////////////////////////////////////////////////////////////////////
    MCS6502ExecutionContext context;
    MCS6502Init(&context, readBytesFunction, writeBytesFunction, NULL);  // Final param is optional conte>

    MCS6502Reset(&context);

    MCS6502Tick(&context); //use timings
    MCS6502ExecNext(&context);  //as fast as possible
}

这些是Arduino在Arduino中编译ESP32后的错误，

MCS6502.ino: In function 'void setup()':

wahid_MCS6502:22:27: error: invalid conversion from 'uint8_t (*)(uint16_t)' {aka 'unsigned char (*)(short unsigned int)'} to 'MCS6502DataReadByteFunction' {aka 'unsigned char (*)(short unsigned int, void*)'} [-fpermissive]

     MCS6502Init(&context, readBytesFunction, writeBytesFunction, NULL);  // Final param is optional conte>

                           ^~~~~~~~~~~~~~~~~

 

 MCS6502.h:91:33: note:   initializing argument 2 of 'void MCS6502Init(MCS6502ExecutionContext*, MCS6502DataReadByteFunction, MCS6502DataWriteByteFunction, void*)'

     MCS6502DataReadByteFunction readByteFn,

     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~

 MCS6502:22:46: error: invalid conversion from 'void (*)(uint16_t, uint8_t)' {aka 'void (*)(short unsigned int, unsigned char)'} to 'MCS6502DataWriteByteFunction' {aka 'void (*)(short unsigned int, unsigned char, void*)'} [-fpermissive]

     MCS6502Init(&context, readBytesFunction, writeBytesFunction, NULL);  // Final param is optional conte>

                                              ^~~~~~~~~~~~~~~~~~

 

 MCS6502.h:92:34: note:   initializing argument 3 of 'void MCS6502Init(MCS6502ExecutionContext*, MCS6502DataReadByteFunction, MCS6502DataWriteByteFunction, void*)'

     MCS6502DataWriteByteFunction writeByteFn,

     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~

exit status 1

invalid conversion from 'uint8_t (*)(uint16_t)' {aka 'unsigned char (*)(short unsigned int)'} to 'MCS6502DataReadByteFunction' {aka 'unsigned char (*)(short unsigned int, void*)'} [-fpermissive]

我需要在Arduino中编译什么？ 抱歉，如果这个问题缺少一些细节，但我第一次在这里问一个问题。

非常感谢

Answer 1

我猜您正在使用这个库？

查看 void*丢失回调的参数。

您需要：

uint8_t readBytesFunction(uint16_t add, void*) {
    uint8_t tc = 5;
    tc = ram[add];
    return tc;
}
void writeBytesFunction(uint16_t add,uint8_t bb, void*)  {
}