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escaped percents in printf

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This commit is contained in:
shockrahwow 2019-10-07 19:40:04 -07:00
parent 5c32c17474
commit 2312b6fbc1
4 changed files with 27 additions and 21 deletions
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20
serial.c
View File

@ -43,41 +43,31 @@ u64 serial_write(const char* buffer, const u64 size) {
/*
* Writes a given buffer to the com1 serial port for debugging in bochs
*/
u64 idx = 0;
//serialport_write_byte(SERIAL_COM1_BASE + 1, 0x00);
serialport_write_byte(SERIAL_DATA_PORT_INT_EN(SERIAL_COM1_BASE),
0x00);
//serialport_write_byte(SERIAL_COM1_BASE + 3, 0x80);
serialport_write_byte(SERIAL_LINE_COMMAND_PORT(SERIAL_COM1_BASE),
SERIAL_LINE_ENABLE);
//serialport_write_byte(SERIAL_COM1_BASE + 0, 0x03);
// quarter speed hopefully the fifo quue wont fill this way
serialport_write_byte(SERIAL_COM1_BASE,
SERIAL_DEFAULT_LINE_CFG);
0x01);
//serialport_write_byte(SERIAL_COM1_BASE + 1, 0x00);
serialport_write_byte(SERIAL_DATA_PORT_INT_EN(SERIAL_COM1_BASE),
0x00);
//serialport_write_byte(SERIAL_COM1_BASE + 3, 0x03);
serialport_write_byte(SERIAL_LINE_COMMAND_PORT(SERIAL_COM1_BASE),
SERIAL_DEFAULT_LINE_CFG);
//serialport_write_byte(SERIAL_COM1_BASE + 2, 0xC7);
serialport_write_byte(SERIAL_FIFO_COMMAND_PORT(SERIAL_COM1_BASE),
SERIAL_DEFAULT_BUFFER_CFG);
//serialport_write_byte(SERIAL_COM1_BASE + 4, 0x0B);
serialport_write_byte(SERIAL_MODEM_COMMAND_PORT(SERIAL_COM1_BASE),
0x0B);
for(idx = 0; idx < size; idx++) {
u64 idx;
for(idx =0; idx < size; idx++) {
serialport_write_byte(SERIAL_COM1_BASE, buffer[idx]);
/*
if(serial_fifo_empty(SERIAL_COM1_BASE == 0x02)) {
serialport_write_byte(SERIAL_COM1_BASE, buffer[idx]);
}
*/
}
return idx;
}

19
stlio.c
View File

@ -1,5 +1,8 @@
#include "stlio.h"
static u8 COLOR_FG = Green;
static u8 COLOR_BG = White;
// We are assuming null-terminated strings here
u64 strlen(char* buffer) {
char* c;
@ -7,7 +10,7 @@ u64 strlen(char* buffer) {
return (u64)(c - buffer);
}
void putch(const char c) {
write_cell_fb(c, Green, White);
write_cell_fb(c, COLOR_FG, COLOR_BG);
}
u64 write(const char* buffer, const u64 size) {
@ -19,7 +22,7 @@ u64 write(const char* buffer, const u64 size) {
//write(_line, sizeof(_line));
}
else {
write_cell_fb(buffer[i], Green, White);
write_cell_fb(buffer[i], COLOR_FG, COLOR_BG);
}
}
return i;
@ -32,13 +35,23 @@ u64 read(const u64 n) {
void printf(char* fmt) {
u64 i;
for(i = 0; i < strlen(fmt);i++) {
u64 size = strlen(fmt);
for(i = 0; i < size;i++) {
char c = fmt[i];
switch(c) {
case '\n': {
frame_buffer_newline();
break;
}
case '%': {
/* only do something if the situation calls for it
* NOTE: this call might not do anything interesting
*/
if((i+1) < size) {
write_cell_fb(fmt[c], COLOR_FG, COLOR_BG);
i += 2;
}
}
default: {
putch(c);
}

1
stlio.h
View File

@ -5,4 +5,5 @@
u64 strlen(char*);
u64 write(const char*, const u64);
u64 read(const u64);
static void __printf_percent(const char c);
void printf(char*);

8
tests.c
View File

@ -5,10 +5,12 @@
void test_write() {
clear_fb();
char* msg1 = "Writing this to fbout\nOh yea and serial 0x3f8";
char* msg1 = "Writing this to fbout\n";
char* serial1 = "0123456789abcdef0123456789abcdef";
char* msg2 = "serial write has finished";
printf(msg1);
serial_write(msg1, strlen(msg1));
char* msg2 = "\nserial write has finished";
serial_write(serial1, strlen(serial1));
printf(msg2);
}