c/inline/inline.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

#include <stdint.h>
#include <stdbool.h>
#include "rvcontroller-ecalls.h"

volatile char thischar;

volatile uint32_t nonblocking_read() {
	volatile uint32_t ret;
	asm(
		"li a7,132  \n\
		 ecall      \n\
		 mv %0,a0   \n"
		: "=r" (ret)
		:
		: "a0"
	);
	return ret;
}

void main() {
	while (true) {
		thischar = nonblocking_read();
		//printint(thischar);
	}
}