blob: acba67a5be400d39e8188dfd94c5872b902dafc9 (
plain)
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
26
27
28
29
30
|
#pragma once
#include <stddef.h>
void tty_init(void);
void tty_read(char *buf, size_t len);
void tty_write(const char *buf, size_t len);
static inline void _tty_hex(const char *buf, size_t len) {
char hex[2];
for (size_t i = 0; i < len; i++) {
hex[0] = (buf[i] & 0xF0) >> 4;
hex[0] += '0';
if (hex[0] > '9')
hex[0] += 'a' - '9' - 1;
hex[1] = buf[i] & 0xF;
hex[1] += '0';
if (hex[1] > '9')
hex[1] += 'a' - '9' - 1;
tty_write(hex, 2);
}
}
// used for static strings
#define tty_const(str) tty_write(str, sizeof(str) - 1)
// very hacky, shouldn't be actually used - only for debugging
// prints backwards
#define _tty_var(var) _tty_hex((void*)&var, sizeof(var))
|
