myfirst.s

来自「用于监视I2C通信总线」· S 代码 · 共 39 行

/*
int8 data_to_ascii(uint8 data)
{
  if(data<10)
  {
    return(data+0x30);
  }
  else
  {
    return(data-10+0x41);SECTION
  }
    
}*/
 
 #define data      R0 
 #define temp      R1
 
        FUNCTION data_to_ascii,0203H
        
        MODULE ASM_FORSTM32
        CFI Function data_to_ascii
        //PUBLIC data_to_ascii
        //EXTERN TableFFT
        RSEG CODE:CODE:NOROOT(2)
        //SECTION .text:CODE(2)
        
data_to_acsii:
        CMP      R0,#+10
        ITTT    CC 
        ADDCC    R0,R0,#+48
        UXTBCC   R0,R0
        BXCC     LR
        ADDS     R0,R0,#+55
        UXTB     R0,R0
        BX       LR               ;; return
 
        
  END