ARM, RISC-V контроллеры

А это прибамбасы для GNU ARM C. См. внутри #define IRQ_MASK (~0x00000080) #define INTERRUPT_ENTRY() asm volatile(" sub lr, lr,#4\n" \ " stmfd sp!,{r0-r12,lr}\n" \ " mrs r1, spsr\n" \ " stmfd sp!,{r1}") #define INTERRUPT_EXIT() asm volatile(" ldmfd sp!,{r1}\n" \ " msr spsr_c,r1\n" \ " ldmfd sp!,{r0-r12,pc}^") /******************************************************************************************** ; Function: EnableIRQ ; ; Description: Clears the IRQ disable bit in the status register ; ; Inputs: Nothing ; ; Returns: Nothing **********************************************************************************************/ static inline unsigned _GET_CPSR(void) { unsigned long retCode; asm volatile (" mrs %0, cpsr" : "=r" (retCode) : ); return retCode; } static inline void _SET_CPSR(unsigned value) { asm volatile (" msr cpsr, %0" : : "r" (value) ); } void EnableIRQ(void) { _SET_CPSR(_GET_CPSR() & IRQ_MASK); } /********************************************************************************************* ; Function: tprintf ; ; Description: Formats and prints a series of characters and values to the UART0 ; ; Inputs: format - Format control ; argument - Optional arguments ; ; Returns: Nothing ; ***********************************************************************************************/ void tprintf( const char *format, ... ) { char msgBuf[128] = {0}; va_list arglist; va_start( arglist, format ); vsprintf(msgBuf,format,arglist ); va_end( arglist ); uart0Puts(msgBuf); }