File size: 1,700 Bytes
cd886b3 | 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 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | #include <ctype.h>
#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#include "simple_lib.h"
void delay(uint32_t i) {
while(i--)
__asm__ volatile("nop");
}
void printC(char c){
// Wait for UART to be ready TEMT in LSR register
while(!(UART_BASE[5] & (1 << 6)));
UART_BASE[0] = c;
}
uint8_t hasChar() {
return (UART_BASE[5] & 1) == 1;
}
char getChar() {
return UART_BASE[0];
}
char wait4Char() {
while(!hasChar());
return getChar();
}
void printS(const char* s) {
while(*s)
printC(*s++);
}
void flush_input(void) {
while(hasChar())
getChar();
}
void prompt(const char* s){
while(!hasChar()){
printS(s);
delay(0x8000);
}
getChar();
}
uint32_t wait4N(uint8_t n) {
uint32_t k = 0;
for(uint8_t j = 0; j < n; j++) {
char c = wait4Char();
k |= c << (j * 8);
}
return k;
}
void printH(uint8_t i) {
const char hex[16] = "0123456789abcdef";
printC(hex[i >> 4]);
printC(hex[i & 0xf]);
}
void printH_32(uint32_t i) {
printH(i >> 24);
printH(i >> 16);
printH(i >> 8);
printH(i);
}
uint32_t hex2int(const char* s) {
uint32_t i = 0;
while(isxdigit(*s)) {
char c = *s-'0';
if(c > 9)
c -= 7;
if(c > 15)
c -= 32;
i = (i << 4) | c;
s++;
}
return i;
}
int isxdigit(int c) {
if(c >= '0' && c <= '9')
return 1;
if(c >= 'a' && c <= 'f')
return 1;
if(c >= 'A' && c <= 'F')
return 1;
return 0;
}
int isdigit(int c) {
if(c >= '0' && c <= '9')
return 1;
return 0;
}
int isupper(int c) {
if(c >= 'A' && c <= 'Z')
return 1;
return 0;
}
int islower(int c) {
if(c >= 'a' && c <= 'z')
return 1;
return 0;
}
int isalpha(int c) {
return islower(c) || isupper(c);
}
int isalnum(int c) {
return isalpha(c) || isdigit(c);
}
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