Fix merge conflicts
This commit is contained in:
commit
913c2d2844
10
.clang-format
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10
.clang-format
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@ -0,0 +1,10 @@
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---
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DerivePointerAlignment: 'true'
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SpaceBeforeParens: ControlStatements
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UseTab: ForIndentation
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IndentWidth: 2
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TabWidth: 2
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ColumnLimit: 120
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BreakBeforeBraces: Attach
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...
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59
.gitignore
vendored
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59
.gitignore
vendored
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@ -0,0 +1,59 @@
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# Created by https://www.gitignore.io/api/c
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# Edit at https://www.gitignore.io/?templates=c
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### C ###
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# Prerequisites
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*.d
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# Object files
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*.o
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*.ko
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*.obj
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*.elf
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# Linker output
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*.ilk
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*.map
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*.exp
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# Precompiled Headers
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*.gch
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*.pch
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||||
|
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# Libraries
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*.lib
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*.a
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*.la
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*.lo
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# Shared objects (inc. Windows DLLs)
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*.dll
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*.so
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*.so.*
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*.dylib
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# Executables
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*.exe
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*.out
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*.app
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*.i*86
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*.x86_64
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*.hex
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# Debug files
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*.dSYM/
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*.su
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*.idb
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*.pdb
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# Kernel Module Compile Results
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*.mod*
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*.cmd
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.tmp_versions/
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modules.order
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Module.symvers
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Mkfile.old
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dkms.conf
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# End of https://www.gitignore.io/api/c
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627
arch/i386/tty.c
Executable file → Normal file
627
arch/i386/tty.c
Executable file → Normal file
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@ -1,294 +1,333 @@
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#include <kernel/tty.h>
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#include <kernel/utils.h>
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static const size_t TERM_WIDTH=80;
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static const size_t TERM_HEIGHT=25;
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static size_t terminal_row;
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static size_t terminal_column;
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static uint8_t current_color;
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static uint16_t* term_buffer;
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static uint16_t* const vga_buffer = (uint16_t*) 0xB8000;
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void screen_initialize(void) {
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terminal_row = 0;
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terminal_column = 0;
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current_color = vga_color_set(LIGHT_GREY, BLACK);
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term_buffer = vga_buffer;
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for (size_t y = 0; y < TERM_HEIGHT; y++) {
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for(size_t x = 0; x < TERM_WIDTH; x++) {
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const size_t offset = y * TERM_WIDTH + x;
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term_buffer[offset] = vga_entry(' ', current_color);
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}
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}
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}
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void term_setcolor(enum vga_colors color) {
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current_color = color;
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}
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void term_putentryat (char c, uint8_t color, size_t x, size_t y) {
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const size_t offset = y * TERM_WIDTH + x;
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term_buffer[offset] = vga_entry(c, color);
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}
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void term_putchar(char c) {
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unsigned char uc = c;
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//Handle escaped characters, such as newline, and crtn.
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switch (uc) {
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case '\n':
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terminal_column = 0;
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terminal_row += 1;
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break;
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default:
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term_putentryat(uc, current_color, terminal_column, terminal_row);
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break;
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}
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if(++terminal_column == TERM_WIDTH)
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{
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terminal_column = 0;
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if(++terminal_row == TERM_HEIGHT){
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term_scroll(false);
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terminal_row = 0;
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}
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}
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}
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void term_write(const char* data, size_t size) {
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for(size_t i = 0; i < size; i++) {
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//Begin handling ANSI escape codes.
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if(data[i] == 0x1B) { //The current character is ESC - the start of ANSI codes.
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term_writes("ANSI Code encountered: ");
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bool string_terminated = false; //Flag used in some of the escape codes
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switch(data[i+1]) {
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case 0x9b/*[*/: //CSI - Control Sequence Introducer (The most common one, hence it comes first)
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char* controlSequence;
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if(data[i+2] == NULL) {
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controlSequence = '\0';
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for(size_t j = 0; j < (strlen(data) - (i+2); j++) {
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if(data[j] == ' ')
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break;
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controlSequence += data[j];
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}
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handleControlSequence(controlSequence); //Send it off to our handler function to keep this part clean
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break;
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//Single shifts are not handled, so just print them and exit
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case 0x8e/*N*/: //SS2 - Single Shift Two
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term_writes("Single Shift Two\n");
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break;
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case 0x8f/*O*/: //SS3 - Single Shift Three
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term_writes("Single Shift Three\n");
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break;
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//Control Strings
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case 0x90/*P*/: //DCS - Device Control String
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term_writes("Device Control String");
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string_terminated = false;
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break;
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case 0x9c/*\*/: //ST - String Terminator
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term_writes("String Terminator\n");
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string_terminated = true;
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break;
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case 0x9d/*]*/: //OSC - Operating System Command
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term_writes("Operating System Command\n");
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string_terminated = false;
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break;
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case 0x98/*X*/: //SOS - Start Of String
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term_writes("Start of String");
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string_terminated = false;
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break;
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case 0x9e/*^*/: //PM - Privacy Message
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term_writes("Privacy Message\n");
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break;
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case 0x9f/*_*/: //APC - Application Program Command
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term_writes("Application Program Command\n");
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break;
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}
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}
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term_putchar(data[i]);
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}
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}
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void term_writes(const char* data) {
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term_write(data, strlen(data));
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}
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void puts(const char* string) {
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term_write(string, strlen(string));
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term_putchar('\n');
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}
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void handleControlSequence(const char* sequence) {
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//Check for our failsafes
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if(sequence) {
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if(sequence != '\0') {
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int n = 0; //Default of the flag used for a few items
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bool nPresent = false;
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bool terminated = false;
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for(size_t i = 0; i < strlen(sequence); i++) {
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if(isDigit(sequence[i])) {
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nPresent = true;
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n = (n*10) + sequence[i];
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} else if(n > 80) {
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n = 80;
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break;
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}
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}
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if(n == 0)
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n = 1;
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switch(sequence[i]) {
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case ';':
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terminated = true;
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int m = 0;
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for(size_t j = 0; j < strlen(sequence - i); j++) {
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if(sequence[j] == 'H' ||sequence[j] == 'f')
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break;
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if(isDigit(sequence[j])) {
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m = (m*10) + sequence[j];
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} else if(j > 80) break;
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}
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if(m == 0)
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m = 1;
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cursor_pos(n, m);
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break;
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case 'A': //CUU - Cursor Up
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//cursor_pos(x, y)
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cursor_pos(terminal_column, terminal_row + n);
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break;
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case 'B': //CUD - Cursor Down
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cursor_pos(terminal_column, terminal_row - n);
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break;
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case 'C': //CUF - Cursor Forward
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cursor_pos(terminal_column + n, terminal_row);
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break;
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case 'D': //CUB - Cursor Back
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cursor_pos(terminal_column - n, terminal_row);
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break;
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case 'E': //CNL - Cursor Next Line
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cursor_pos(0, terminal_row + n);
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break;
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case 'F': //CPL - Cursor Previous Line
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cursor_pos(0, terminal_row - n);
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break;
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case 'G': //CHA - Cursor Horizontal Absolute
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cursor_pos(n, terminal_row);
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case 'J': //ED - Erase in Display
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//current cursor pos = y * width + x
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int pos = terminal_row * 80 + terminal_column;
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if(!nPresent) {
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for(pos < (25 * 80); pos++) {
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vga_buffer[pos] = '\0';
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}
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n = 0;
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} else if(nPresent && n == 1) {
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for(pos > 0; pos--) {
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vga_buffer[pos] = '\0';
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}
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} else if(n == 2 || n == 3) {
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for(int i = 0; i < (25*80); i++) {
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vga_buffer[0] = '\0';
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}
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}
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break;
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case 'K': //EL - Erase in Line
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int pos = terminal_row * 80 + terminal_column;
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if(!nPresent) { //From cursor to end of line
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int endPos = (terminal_row + 1) * 80 - 1; //End of line = current row + 25 columns = current row + 1
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for(pos < endPos; pos++) {
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vga_buffer[pos] = '\0';
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}
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} else if(nPresent && n == 1) { //From cursor to start of line
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int endPos = terminal_row * 80; //Start of line = end of previous line + 1 == current line
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for(pos > endPos; pos--) {
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vga_buffer[pos] = '\0';
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}
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} else if(nPresent && n == 2) { //Entire current line
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pos = terminal_row * 80;
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int endPos = (terminal_row + 1) * 80 - 1;
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for(pos < endPos; pos++) {
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vga_buffer[pos] = '\0';
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}
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}
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break;
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case 'S': //SU - Scroll Up
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term_scroll(true);
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break;
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case 'T': //SD - Scroll Down
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term_scroll(false);
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break;
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}
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}
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}
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}
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}
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bool isDigit(const char c) {
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return c == '0' || c == '1' || c == '2' || c == '3' ||
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c == '4' || c == '5' || c == '6' || c == '7' ||
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c == '8' || c == '9';
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}
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void term_scroll(bool down) {
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int current_pos;
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if(down) {
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current_pos = 25 * 80; //Start of the last line.
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} else {
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current_pos = 160; //Start of the second line.
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}
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unsigned char* term_buffer = (unsigned char*) vga_buffer;
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if(down) { //To scroll down, move every character into the one below it, or "pull" every character down
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while(current_pos > 80) {
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term_buffer[current_pos + 160] = vga_buffer[current_pos];
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term_buffer[current_pos + 159] = vga_buffer[current_pos - 1];
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current_pos -= 2;
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} else {
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while (current_pos <= 4000) {
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term_buffer[current_pos - 160 /*The character immediately below it*/] = vga_buffer[current_pos]; //Move each character up a line
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term_buffer[current_pos - 159 /*The color of the character below*/] = vga_buffer[current_pos + 1]; //As well as its color
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current_pos += 2; //Move to next char
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}
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}
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if(down) {
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current_pos = 0; //Start of first line
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for(current_pos < 80; current_pos++) {
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term_buffer[current_pos] = '\0';
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current_pos += 2;
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} else {
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; //Start of the last line
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//Wipe out the bottom line
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for(current_pos = 3840; current_pos <= 3920; i++) {
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term_buffer[current_pos] = 0;
|
||||
current_pos += 2;
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||||
}
|
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}
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||||
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terminal_row = 24; //Start writing on the last line
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terminal_column = 0;
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||||
}
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#include <stdbool.h>
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#include <stddef.h>
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||||
#include <stdint.h>
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#include <string.h>
|
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|
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#include "kernel/tty.h"
|
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#include "kernel/utils.h"
|
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|
||||
static const size_t TERM_WIDTH = 80;
|
||||
static const size_t TERM_HEIGHT = 25;
|
||||
|
||||
static size_t terminal_row;
|
||||
static size_t terminal_column;
|
||||
|
||||
static uint8_t current_color;
|
||||
static uint16_t* term_buffer;
|
||||
static uint16_t* const vga_buffer = (uint16_t*)0xB8000;
|
||||
|
||||
void screen_initialize(void) {
|
||||
|
||||
terminal_row = 0;
|
||||
terminal_column = 0;
|
||||
current_color = vga_color_set(LIGHT_GREY, BLACK);
|
||||
term_buffer = vga_buffer;
|
||||
|
||||
for (size_t y = 0; y < TERM_HEIGHT; y++) {
|
||||
for (size_t x = 0; x < TERM_WIDTH; x++) {
|
||||
const size_t offset = y * TERM_WIDTH + x;
|
||||
term_buffer[offset] = vga_entry(' ', current_color);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void term_setcolor(enum vga_colors color) { current_color = color; }
|
||||
|
||||
void term_putentryat(char c, uint8_t color, size_t x, size_t y) {
|
||||
const size_t offset = y * TERM_WIDTH + x;
|
||||
term_buffer[offset] = vga_entry(c, color);
|
||||
}
|
||||
|
||||
void term_putchar(char c) {
|
||||
unsigned char uc = c;
|
||||
|
||||
// Handle escaped characters, such as newline, and crtn.
|
||||
switch (uc) {
|
||||
case '\n':
|
||||
terminal_column = 0;
|
||||
terminal_row += 1;
|
||||
break;
|
||||
default:
|
||||
term_putentryat(uc, current_color, terminal_column, terminal_row);
|
||||
if (++terminal_column == TERM_WIDTH) {
|
||||
terminal_column = 0;
|
||||
if (++terminal_row == TERM_HEIGHT) {
|
||||
term_scroll(false);
|
||||
terminal_row = 0;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
struct csi_sequence parse_csi(const char* data, size_t size) {
|
||||
enum State { PARAMETER, INTERMEDIATE, FINAL, INVALID };
|
||||
enum State state = PARAMETER;
|
||||
|
||||
struct csi_sequence sequence = {.parameter = NULL,
|
||||
.parameter_len = 0,
|
||||
.intermediate = NULL,
|
||||
.intermediate_len = 0,
|
||||
.final = NULL,
|
||||
.valid = false};
|
||||
|
||||
for (size_t j = 0; j < size; j++) {
|
||||
uint8_t c = data[j];
|
||||
if (state == PARAMETER && (c >= 0x30 && c <= 0x3F)) {
|
||||
if (!sequence.parameter)
|
||||
sequence.parameter = data + j;
|
||||
sequence.parameter_len++;
|
||||
} else if (c >= 0x20 && c <= 0x2F) {
|
||||
if (!sequence.intermediate)
|
||||
sequence.intermediate = data + j;
|
||||
sequence.intermediate_len++;
|
||||
state = INTERMEDIATE;
|
||||
} else if (c >= 0x40 && c <= 0x7F) {
|
||||
sequence.final = data + j;
|
||||
sequence.valid = true;
|
||||
state = FINAL;
|
||||
break;
|
||||
} else {
|
||||
// Parameter found in intermediate byte location, or byte out of
|
||||
// range
|
||||
state = INVALID;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return sequence;
|
||||
}
|
||||
|
||||
void term_write(const char* data, size_t size) {
|
||||
for (size_t i = 0; i < size; i++) {
|
||||
// Begin handling ANSI escape codes.
|
||||
if (data[i] == 0x1b) { // The current character is ESC - the start of ANSI codes.
|
||||
// term_writes("ANSI Code encountered: ");
|
||||
|
||||
bool string_terminated = false; // Flag used in some of the escape codes
|
||||
|
||||
// TODO: Should only progress if we have at least 2 more bytes
|
||||
|
||||
switch ((uint8_t)data[i + 1]) {
|
||||
case '[': // CSI - Control Sequence Introducer (The most common one, hence it comes first)
|
||||
{
|
||||
struct csi_sequence sequence = parse_csi(data + i + 2, size - (i + 2));
|
||||
if (sequence.valid) {
|
||||
// Send it off to our handler function to keep this part clean
|
||||
handleControlSequence(sequence);
|
||||
i += sequence.parameter_len + sequence.intermediate_len + 2; // Move past sequence
|
||||
}
|
||||
} break;
|
||||
// Single shifts are not handled, so just print them and exit
|
||||
case 'N': // SS2 - Single Shift Two
|
||||
term_writes("Single Shift Two\n");
|
||||
break;
|
||||
case 'O': // SS3 - Single Shift Three
|
||||
term_writes("Single Shift Three\n");
|
||||
break;
|
||||
|
||||
// Control Strings
|
||||
case 'P': // DCS - Device Control String
|
||||
term_writes("Device Control String");
|
||||
string_terminated = false;
|
||||
break;
|
||||
case '\\': // ST - String Terminator
|
||||
term_writes("String Terminator\n");
|
||||
string_terminated = true;
|
||||
break;
|
||||
case ']': // OSC - Operating System Command
|
||||
term_writes("Operating System Command\n");
|
||||
string_terminated = false;
|
||||
break;
|
||||
case 'X': // SOS - Start Of String
|
||||
term_writes("Start of String");
|
||||
string_terminated = false;
|
||||
break;
|
||||
case '^': // PM - Privacy Message
|
||||
term_writes("Privacy Message\n");
|
||||
break;
|
||||
case '_': // APC - Application Program Command
|
||||
term_writes("Application Program Command\n");
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
term_putchar(data[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void term_writes(const char* data) { term_write(data, strlen(data)); }
|
||||
|
||||
void puts(const char* string) {
|
||||
term_write(string, strlen(string));
|
||||
term_putchar('\n');
|
||||
}
|
||||
|
||||
void handleControlSequence(struct csi_sequence sequence) {
|
||||
// Check for our failsafes
|
||||
|
||||
if (sequence.valid) {
|
||||
int n = 0; // Default of the flag used for a few items
|
||||
|
||||
// Parse parameters, we only care about a max 2 of number only parameters
|
||||
// for now
|
||||
int params[2] = {0};
|
||||
int param_count = 0;
|
||||
if (sequence.parameter_len) {
|
||||
for (size_t i = 0; i < sequence.parameter_len && param_count < 1; i++) {
|
||||
char c = sequence.parameter[i];
|
||||
if (isDigit(c)) {
|
||||
n = (n * 10) + (sequence.parameter[i] - '0');
|
||||
} else if (c == ';') {
|
||||
params[param_count++] = n;
|
||||
}
|
||||
}
|
||||
params[param_count++] = n;
|
||||
}
|
||||
|
||||
switch (*(sequence.final)) {
|
||||
case 'H':
|
||||
case 'f': // CUP - Cursor Position
|
||||
// TODO: Check to see if we have 2 paramaters
|
||||
if (params[0])
|
||||
params[0]--;
|
||||
if (params[1])
|
||||
params[1]--;
|
||||
set_cursor(params[0], params[1]);
|
||||
break;
|
||||
case 'A': // CUU - Cursor Up
|
||||
if (!params[0])
|
||||
params[0] = 1;
|
||||
set_cursor(terminal_column, terminal_row - params[0]);
|
||||
break;
|
||||
case 'B': // CUD - Cursor Down
|
||||
if (!params[0])
|
||||
params[0] = 1;
|
||||
set_cursor(terminal_column, terminal_row + params[0]);
|
||||
break;
|
||||
case 'C': // CUF - Cursor Forward
|
||||
if (!params[0])
|
||||
params[0] = 1;
|
||||
set_cursor(terminal_column + params[0], terminal_row);
|
||||
break;
|
||||
case 'D': // CUB - Cursor Back
|
||||
if (!params[0])
|
||||
params[0] = 1;
|
||||
set_cursor(terminal_column - params[0], terminal_row);
|
||||
break;
|
||||
case 'E': // CNL - Cursor Next Line
|
||||
if (!params[0])
|
||||
params[0] = 1;
|
||||
set_cursor(0, terminal_row + params[0]);
|
||||
break;
|
||||
case 'F': // CPL - Cursor Previous Line
|
||||
if (!params[0])
|
||||
params[0] = 1;
|
||||
set_cursor(0, terminal_row - params[0]);
|
||||
break;
|
||||
case 'G': // CHA - Cursor Horizontal Absolute
|
||||
if (params[0])
|
||||
params[0]--;
|
||||
set_cursor(params[0], terminal_row);
|
||||
break;
|
||||
case 'J': // ED - Erase in Display
|
||||
{
|
||||
// current cursor pos = y * width + x
|
||||
int pos = terminal_row * 80 + terminal_column;
|
||||
if (params[0] == 0) { // Clear from cursor to end of screen
|
||||
for (; pos < (25 * 80); pos++) {
|
||||
vga_buffer[pos] = '\0';
|
||||
}
|
||||
} else if (params[0] == 1) { // Clear from cursor to beginning
|
||||
for (; pos > 0; pos--) {
|
||||
vga_buffer[pos] = '\0';
|
||||
}
|
||||
} else if (params[0] == 2 || params[0] == 3) { // Clear entire screen
|
||||
// TODO: Support scrollback buffer? (n = 3)
|
||||
for (int i = 0; i < (25 * 80); i++) {
|
||||
vga_buffer[0] = '\0';
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 'K': // EL - Erase in Line
|
||||
{
|
||||
int pos = terminal_row * 80 + terminal_column;
|
||||
if (params[0] == 0) { // From cursor to end of line
|
||||
int endPos = (terminal_row + 1) * 80 - 1; // End of line = current row + 25 columns = current row + 1
|
||||
for (; pos < endPos; pos++) {
|
||||
vga_buffer[pos] = '\0';
|
||||
}
|
||||
} else if (params[0] == 1) { // From cursor to start of line
|
||||
int endPos = terminal_row * 80; // Start of line = end of previous line + 1 == current line
|
||||
for (; pos > endPos; pos--) {
|
||||
vga_buffer[pos] = '\0';
|
||||
}
|
||||
} else if (params[0] == 2) { // Entire current line
|
||||
pos = terminal_row * 80;
|
||||
int endPos = (terminal_row + 1) * 80 - 1;
|
||||
for (; pos < endPos; pos++) {
|
||||
vga_buffer[pos] = '\0';
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 'S': // SU - Scroll Up
|
||||
term_scroll(true);
|
||||
break;
|
||||
case 'T': // SD - Scroll Down
|
||||
term_scroll(false);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bool isDigit(char c) { return c >= '0' && c <= '9'; }
|
||||
|
||||
void set_cursor(int n, int m) {
|
||||
terminal_column = n;
|
||||
terminal_row = m;
|
||||
}
|
||||
|
||||
void term_scroll(bool down) {
|
||||
|
||||
int current_pos;
|
||||
if (down) {
|
||||
current_pos = 25 * 80; // Start of the last line.
|
||||
} else {
|
||||
current_pos = 160; // Start of the second line.
|
||||
}
|
||||
|
||||
unsigned char* term_buffer = (unsigned char*)vga_buffer;
|
||||
|
||||
if (down) { // To scroll down, move every character into the one below it, or "pull" every character down
|
||||
while (current_pos > 80) {
|
||||
term_buffer[current_pos + 160] = vga_buffer[current_pos];
|
||||
term_buffer[current_pos + 159] = vga_buffer[current_pos - 1];
|
||||
current_pos -= 2;
|
||||
}
|
||||
} else {
|
||||
while (current_pos <= 4000) {
|
||||
term_buffer[current_pos - 160 /*The character immediately below it*/] =
|
||||
vga_buffer[current_pos]; // Move each character up a line
|
||||
term_buffer[current_pos - 159 /*The color of the character below*/] =
|
||||
vga_buffer[current_pos + 1]; // As well as its color
|
||||
current_pos += 2; // Move to next char
|
||||
}
|
||||
}
|
||||
|
||||
if (down) {
|
||||
current_pos = 0; // Start of first line
|
||||
for (; current_pos < 80; current_pos++) {
|
||||
term_buffer[current_pos] = '\0';
|
||||
current_pos += 2;
|
||||
}
|
||||
} else {
|
||||
; // Start of the last line
|
||||
// Wipe out the bottom line
|
||||
for (current_pos = 3840; current_pos <= 3920; current_pos += 2) {
|
||||
term_buffer[current_pos] = 0;
|
||||
}
|
||||
}
|
||||
terminal_row = 24; // Start writing on the last line
|
||||
terminal_column = 0;
|
||||
}
|
||||
|
|
61
include/arch/i386/vga.h
Executable file → Normal file
61
include/arch/i386/vga.h
Executable file → Normal file
|
@ -1,34 +1,29 @@
|
|||
#ifndef ARCH_I386_VGA_H
|
||||
#define ARCH_I386_VGA_H
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
|
||||
enum vga_colors {
|
||||
BLACK = 0,
|
||||
BLUE = 1,
|
||||
GREEN = 2,
|
||||
CYAN = 3,
|
||||
RED = 4,
|
||||
MAGENTA = 5,
|
||||
BROWN = 6,
|
||||
LIGHT_GREY = 7,
|
||||
DARK_GREY = 8,
|
||||
LIGHT_BLUE = 9,
|
||||
LIGHT_GREEN = 10,
|
||||
LIGHT_CYAN = 11,
|
||||
LIGHT_RED = 12,
|
||||
LIGHT_MAGENTA = 13,
|
||||
LIGHT_BROWN = 14,
|
||||
WHITE = 15
|
||||
};
|
||||
|
||||
static inline uint8_t vga_color_set(enum vga_colors fg, enum vga_colors bg) {
|
||||
return fg | bg << 4;
|
||||
}
|
||||
|
||||
static inline uint16_t vga_entry(unsigned char uc, uint8_t color) {
|
||||
return (uint16_t) uc | (uint16_t) color << 8;
|
||||
}
|
||||
|
||||
#ifndef ARCH_I386_VGA_H
|
||||
#define ARCH_I386_VGA_H
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
enum vga_colors {
|
||||
BLACK = 0,
|
||||
BLUE = 1,
|
||||
GREEN = 2,
|
||||
CYAN = 3,
|
||||
RED = 4,
|
||||
MAGENTA = 5,
|
||||
BROWN = 6,
|
||||
LIGHT_GREY = 7,
|
||||
DARK_GREY = 8,
|
||||
LIGHT_BLUE = 9,
|
||||
LIGHT_GREEN = 10,
|
||||
LIGHT_CYAN = 11,
|
||||
LIGHT_RED = 12,
|
||||
LIGHT_MAGENTA = 13,
|
||||
LIGHT_BROWN = 14,
|
||||
WHITE = 15
|
||||
};
|
||||
|
||||
static inline uint8_t vga_color_set(enum vga_colors fg, enum vga_colors bg) { return fg | bg << 4; }
|
||||
|
||||
static inline uint16_t vga_entry(unsigned char uc, uint8_t color) { return (uint16_t)uc | (uint16_t)color << 8; }
|
||||
|
||||
#endif
|
50
include/kernel/tty.h
Executable file → Normal file
50
include/kernel/tty.h
Executable file → Normal file
|
@ -1,18 +1,32 @@
|
|||
#pragma once
|
||||
|
||||
#include <stddef.h>
|
||||
#include <stdint.h>
|
||||
#include <vga.h>
|
||||
|
||||
void term_setcolor(enum vga_colors);
|
||||
void screen_initialize(void);
|
||||
void term_putentryat(char, uint8_t, size_t, size_t);
|
||||
void term_putchar(char);
|
||||
void term_write(const char*, size_t);
|
||||
void term_writes(const char*);
|
||||
void puts(const char*);
|
||||
void set_cursor(int, int);
|
||||
void term_scroll(void);
|
||||
void int_to_ascii(int, char*);
|
||||
void int_to_hex(int, char*);
|
||||
void empty_string(char*);
|
||||
#pragma once
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stddef.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include "vga.h"
|
||||
|
||||
struct csi_sequence {
|
||||
const char* parameter;
|
||||
size_t parameter_len;
|
||||
const char* intermediate;
|
||||
size_t intermediate_len;
|
||||
const char* final;
|
||||
bool valid;
|
||||
};
|
||||
|
||||
void term_setcolor(enum vga_colors);
|
||||
void screen_initialize(void);
|
||||
void term_putentryat(char, uint8_t, size_t, size_t);
|
||||
void term_putchar(char);
|
||||
void term_write(const char*, size_t);
|
||||
void term_writes(const char*);
|
||||
void puts(const char*);
|
||||
void handleControlSequence(struct csi_sequence);
|
||||
void set_cursor(int, int);
|
||||
void term_scroll(bool);
|
||||
void int_to_ascii(int, char*);
|
||||
void int_to_hex(int, char*);
|
||||
void empty_string(char*);
|
||||
|
||||
bool isDigit(char c);
|
||||
|
|
|
@ -1,3 +1,4 @@
|
|||
|
||||
#pragma once
|
||||
#include <stddef.h>
|
||||
|
||||
|
@ -7,4 +8,4 @@ size_t strlen(const char*);
|
|||
|
||||
unsigned char inb(unsigned short);
|
||||
|
||||
void outb(unsigned short, unsigned char);
|
||||
void outb(unsigned short, unsigned char);
|
||||
|
|
57
include/vga.h
Executable file → Normal file
57
include/vga.h
Executable file → Normal file
|
@ -1,31 +1,26 @@
|
|||
#pragma once
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
|
||||
enum vga_colors {
|
||||
BLACK = 0,
|
||||
BLUE = 1,
|
||||
GREEN = 2,
|
||||
CYAN = 3,
|
||||
RED = 4,
|
||||
MAGENTA = 5,
|
||||
BROWN = 6,
|
||||
LIGHT_GREY = 7,
|
||||
DARK_GREY = 8,
|
||||
LIGHT_BLUE = 9,
|
||||
LIGHT_GREEN = 10,
|
||||
LIGHT_CYAN = 11,
|
||||
LIGHT_RED = 12,
|
||||
LIGHT_MAGENTA = 13,
|
||||
LIGHT_BROWN = 14,
|
||||
WHITE = 15
|
||||
};
|
||||
|
||||
static inline uint8_t vga_color_set(enum vga_colors fg, enum vga_colors bg) {
|
||||
return fg | bg << 4;
|
||||
}
|
||||
|
||||
static inline uint16_t vga_entry(unsigned char uc, uint8_t color) {
|
||||
return (uint16_t) uc | (uint16_t) color << 8;
|
||||
}
|
||||
#pragma once
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
enum vga_colors {
|
||||
BLACK = 0,
|
||||
BLUE = 1,
|
||||
GREEN = 2,
|
||||
CYAN = 3,
|
||||
RED = 4,
|
||||
MAGENTA = 5,
|
||||
BROWN = 6,
|
||||
LIGHT_GREY = 7,
|
||||
DARK_GREY = 8,
|
||||
LIGHT_BLUE = 9,
|
||||
LIGHT_GREEN = 10,
|
||||
LIGHT_CYAN = 11,
|
||||
LIGHT_RED = 12,
|
||||
LIGHT_MAGENTA = 13,
|
||||
LIGHT_BROWN = 14,
|
||||
WHITE = 15
|
||||
};
|
||||
|
||||
static inline uint8_t vga_color_set(enum vga_colors fg, enum vga_colors bg) { return fg | bg << 4; }
|
||||
|
||||
static inline uint16_t vga_entry(unsigned char uc, uint8_t color) { return (uint16_t)uc | (uint16_t)color << 8; }
|
||||
|
|
Binary file not shown.
3
kernel/kernel.c
Executable file → Normal file
3
kernel/kernel.c
Executable file → Normal file
|
@ -1,3 +1,4 @@
|
|||
|
||||
//#include <stdio.h>
|
||||
|
||||
#include <kernel/tty.h>
|
||||
|
@ -20,4 +21,4 @@ int kernel_main(void) {
|
|||
|
||||
for(;;) {}
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
|
94
kernel/syscalls.c
Executable file → Normal file
94
kernel/syscalls.c
Executable file → Normal file
|
@ -1,48 +1,48 @@
|
|||
/*#include <sys/stat.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/fcntl.h>
|
||||
#include <sys/times.h>
|
||||
#include <sys/errno.h>
|
||||
#include <sys/time.h>
|
||||
#include <stdio.h>
|
||||
|
||||
//prototypes; these are the bare minimum for newlib to compile.
|
||||
|
||||
void _exit();
|
||||
|
||||
int close(int file);
|
||||
|
||||
char **environ;
|
||||
|
||||
int execve(char *name, char **argv, char **env);
|
||||
|
||||
int fork();
|
||||
|
||||
int fstat(int file, struct stat *st);
|
||||
|
||||
int getpid();
|
||||
|
||||
int isatty(int file);
|
||||
|
||||
int kill(int pid, int sig);
|
||||
|
||||
int link(char *old, char *new);
|
||||
|
||||
int lseek(int file, int ptr, int dir);
|
||||
|
||||
int open(const char* name, int flags, ...);
|
||||
|
||||
int read(int file, char* ptr, int len);
|
||||
|
||||
caddr_t sbrk(int incr);
|
||||
|
||||
int stat(const char* file, struct stat *st);
|
||||
|
||||
clock_t times(struct tms* buf);
|
||||
|
||||
int unlink(char* name);
|
||||
|
||||
int wait(int file, char* ptr, int len);
|
||||
|
||||
int gettimeofday(struct timeval* p, struct timezone* z);
|
||||
/*#include <sys/stat.h>
|
||||
#include <stdio.h>
|
||||
#include <sys/errno.h>
|
||||
#include <sys/fcntl.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/times.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
//prototypes; these are the bare minimum for newlib to compile.
|
||||
|
||||
void _exit();
|
||||
|
||||
int close(int file);
|
||||
|
||||
char **environ;
|
||||
|
||||
int execve(char *name, char **argv, char **env);
|
||||
|
||||
int fork();
|
||||
|
||||
int fstat(int file, struct stat *st);
|
||||
|
||||
int getpid();
|
||||
|
||||
int isatty(int file);
|
||||
|
||||
int kill(int pid, int sig);
|
||||
|
||||
int link(char *old, char *new);
|
||||
|
||||
int lseek(int file, int ptr, int dir);
|
||||
|
||||
int open(const char* name, int flags, ...);
|
||||
|
||||
int read(int file, char* ptr, int len);
|
||||
|
||||
caddr_t sbrk(int incr);
|
||||
|
||||
int stat(const char* file, struct stat *st);
|
||||
|
||||
clock_t times(struct tms* buf);
|
||||
|
||||
int unlink(char* name);
|
||||
|
||||
int wait(int file, char* ptr, int len);
|
||||
|
||||
int gettimeofday(struct timeval* p, struct timezone* z);
|
||||
*/
|
2
kernel/utils.c
Executable file → Normal file
2
kernel/utils.c
Executable file → Normal file
|
@ -16,4 +16,4 @@ unsigned char inb(unsigned short port) {
|
|||
|
||||
void outb(unsigned short port, unsigned char data) {
|
||||
asm volatile("outb %1, %0" : : "dN" (port), "a" (data));
|
||||
}
|
||||
}
|
||||
|
|
|
@ -1,19 +1,19 @@
|
|||
#ifndef _STDIO_H
|
||||
#define _STDIO_H 1
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
|
||||
#define EOF (-1)
|
||||
|
||||
struct __sFile {
|
||||
int unused;
|
||||
};
|
||||
|
||||
typedef struct __sFile FILE;
|
||||
|
||||
#define stderr (_impure_ptr->_stderr)
|
||||
|
||||
int printf(const char* __restrict, ...);
|
||||
int putchar(int);
|
||||
int puts(const char*);
|
||||
#ifndef _STDIO_H
|
||||
#define _STDIO_H 1
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
|
||||
#define EOF (-1)
|
||||
|
||||
struct __sFile {
|
||||
int unused;
|
||||
};
|
||||
|
||||
typedef struct __sFile FILE;
|
||||
|
||||
#define stderr (_impure_ptr->_stderr)
|
||||
|
||||
int printf(const char* __restrict, ...);
|
||||
int putchar(int);
|
||||
int puts(const char*);
|
||||
#endif
|
1195
libc/include/stdlib.h
Executable file → Normal file
1195
libc/include/stdlib.h
Executable file → Normal file
File diff suppressed because it is too large
Load Diff
24
libc/include/string.h
Executable file → Normal file
24
libc/include/string.h
Executable file → Normal file
|
@ -1,13 +1,13 @@
|
|||
#ifndef _STRING_H
|
||||
#define _STRING_H 1
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
#include <stddef.h>
|
||||
|
||||
int memcmp(const void*, const void*, size_t);
|
||||
void* memcpy(void* __restrict, const void* __restrict, size_t);
|
||||
void* memmove(void*, const void*, size_t);
|
||||
void* memset(void*, int, size_t);
|
||||
size_t strlen(const char*);
|
||||
|
||||
#ifndef _STRING_H
|
||||
#define _STRING_H 1
|
||||
|
||||
#include <stddef.h>
|
||||
#include <sys/cdefs.h>
|
||||
|
||||
int memcmp(const void*, const void*, size_t);
|
||||
void* memcpy(void* __restrict, const void* __restrict, size_t);
|
||||
void* memmove(void*, const void*, size_t);
|
||||
void* memset(void*, int, size_t);
|
||||
size_t strlen(const char*);
|
||||
|
||||
#endif
|
|
@ -1,5 +1,5 @@
|
|||
#ifndef _SYS_CDEFS_H
|
||||
#define _SYS_CDEFS_H 1
|
||||
|
||||
#define __red_libc 1
|
||||
#ifndef _SYS_CDEFS_H
|
||||
#define _SYS_CDEFS_H 1
|
||||
|
||||
#define __red_libc 1
|
||||
#endif
|
187
libc/stdio/printf.c
Executable file → Normal file
187
libc/stdio/printf.c
Executable file → Normal file
|
@ -1,94 +1,93 @@
|
|||
#include <limits.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
static bool print(const char* data, size_t length) {
|
||||
const unsigned char* bytes = (const unsigned char*) data;
|
||||
for (size_t i = 0; i < length; i++)
|
||||
if(putchar(bytes[i]) == EOF)
|
||||
return false'
|
||||
return true;
|
||||
}
|
||||
|
||||
int printf(const char* restrict format, ...) {
|
||||
va_list parameters;
|
||||
va_start(parameters, format);
|
||||
|
||||
int written = 0;
|
||||
|
||||
while(*format != '\0') {
|
||||
size_t maxrem = INT_MAX - writen;
|
||||
|
||||
if(format[0] != '%' || format[1] == '%') {
|
||||
if(format[0] == '%')
|
||||
format++;
|
||||
size_t amount = 1;
|
||||
|
||||
while (format[amount] && format[amount] != '%')
|
||||
amount++;
|
||||
|
||||
if(maxrem < amount) {
|
||||
//TODO: Set an OVERFLOW error
|
||||
return -1;
|
||||
}
|
||||
|
||||
if ((!print(format, amount))
|
||||
return -1;
|
||||
|
||||
format += amount;
|
||||
written += amount;
|
||||
continue;
|
||||
}
|
||||
|
||||
const char* first_format = format++;
|
||||
|
||||
switch(*format) {
|
||||
case 'c':
|
||||
format++;
|
||||
char c = (char) va_arg(parameters, int);
|
||||
if(!maxrem) {
|
||||
//TODO: Set OVERFLOW
|
||||
return -1;
|
||||
}
|
||||
|
||||
if(!print(&c, sizeof(c)))
|
||||
return -1;
|
||||
written++;
|
||||
break;
|
||||
case 's':
|
||||
format++;
|
||||
|
||||
const char* str = va_arg(parameters, const char*);
|
||||
size_t len = strlen(str);
|
||||
|
||||
if(maxrem < len) {
|
||||
//TODO: Set OVERFLOW
|
||||
return -1;
|
||||
}
|
||||
|
||||
if(!print(str, len))
|
||||
return -1;
|
||||
|
||||
written += len;
|
||||
break;
|
||||
default:
|
||||
format = first_format;
|
||||
size_t len = strlen(format);
|
||||
if(maxrem < len) {
|
||||
//TODO: Set OVERFLOW
|
||||
return -1;
|
||||
}
|
||||
|
||||
if(!print(format, len))
|
||||
return -1;
|
||||
written += len;
|
||||
format += len;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
va_end(parameters);
|
||||
return written;
|
||||
}
|
||||
#include <limits.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
static bool print(const char* data, size_t length) {
|
||||
const unsigned char* bytes = (const unsigned char*)data;
|
||||
for (size_t i = 0; i < length; i++)
|
||||
if (putchar(bytes[i]) == EOF)
|
||||
return false' return true;
|
||||
}
|
||||
|
||||
int printf(const char* restrict format, ...) {
|
||||
va_list parameters;
|
||||
va_start(parameters, format);
|
||||
|
||||
int written = 0;
|
||||
|
||||
while (*format != '\0') {
|
||||
size_t maxrem = INT_MAX - writen;
|
||||
|
||||
if (format[0] != '%' || format[1] == '%') {
|
||||
if (format[0] == '%')
|
||||
format++;
|
||||
size_t amount = 1;
|
||||
|
||||
while (format[amount] && format[amount] != '%')
|
||||
amount++;
|
||||
|
||||
if (maxrem < amount) {
|
||||
// TODO: Set an OVERFLOW error
|
||||
return -1;
|
||||
}
|
||||
|
||||
if ((!print(format, amount))
|
||||
return -1;
|
||||
|
||||
format += amount;
|
||||
written += amount;
|
||||
continue;
|
||||
}
|
||||
|
||||
const char* first_format = format++;
|
||||
|
||||
switch (*format) {
|
||||
case 'c':
|
||||
format++;
|
||||
char c = (char)va_arg(parameters, int);
|
||||
if (!maxrem) {
|
||||
// TODO: Set OVERFLOW
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!print(&c, sizeof(c)))
|
||||
return -1;
|
||||
written++;
|
||||
break;
|
||||
case 's':
|
||||
format++;
|
||||
|
||||
const char* str = va_arg(parameters, const char*);
|
||||
size_t len = strlen(str);
|
||||
|
||||
if (maxrem < len) {
|
||||
// TODO: Set OVERFLOW
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!print(str, len))
|
||||
return -1;
|
||||
|
||||
written += len;
|
||||
break;
|
||||
default:
|
||||
format = first_format;
|
||||
size_t len = strlen(format);
|
||||
if (maxrem < len) {
|
||||
// TODO: Set OVERFLOW
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!print(format, len))
|
||||
return -1;
|
||||
written += len;
|
||||
format += len;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
va_end(parameters);
|
||||
return written;
|
||||
}
|
||||
|
|
28
libc/stdio/putchar.c
Executable file → Normal file
28
libc/stdio/putchar.c
Executable file → Normal file
|
@ -1,15 +1,15 @@
|
|||
#include <stdio.h>
|
||||
|
||||
#if defined(__is_libk)
|
||||
#include <kernel/tty.h>
|
||||
#endif
|
||||
|
||||
int putchar(int ic) {
|
||||
#if defined(__is_libk)
|
||||
char c = (char) ic;
|
||||
term_write(&c, sizeof(c));
|
||||
#else
|
||||
//TODO: Implement stdio & the write call
|
||||
#endif
|
||||
return ic;
|
||||
#include <stdio.h>
|
||||
|
||||
#if defined(__is_libk)
|
||||
#include <kernel/tty.h>
|
||||
#endif
|
||||
|
||||
int putchar(int ic) {
|
||||
#if defined(__is_libk)
|
||||
char c = (char)ic;
|
||||
term_write(&c, sizeof(c));
|
||||
#else
|
||||
// TODO: Implement stdio & the write call
|
||||
#endif
|
||||
return ic;
|
||||
}
|
|
@ -1,5 +1,5 @@
|
|||
#include <stdio.h>
|
||||
|
||||
int puts(const char* string) {
|
||||
return printf("%s\n"), string);
|
||||
#include <stdio.h>
|
||||
|
||||
int puts(const char* string) {
|
||||
return printf("%s\n"), string);
|
||||
}
|
28
libc/stdlib/abort.c
Executable file → Normal file
28
libc/stdlib/abort.c
Executable file → Normal file
|
@ -1,15 +1,15 @@
|
|||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
__attribute__((__noreturn__))
|
||||
void abort(void) {
|
||||
|
||||
#if defined(__is_libk)
|
||||
//TODO: Kernel panic.
|
||||
printf(">>PANIC<<<\n abort() panicked!\n");
|
||||
#else
|
||||
printf("abort() called\n");
|
||||
#endif
|
||||
while(1) {}
|
||||
__builtin_unreachable();
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
__attribute__((__noreturn__)) void abort(void) {
|
||||
|
||||
#if defined(__is_libk)
|
||||
// TODO: Kernel panic.
|
||||
printf(">>PANIC<<<\n abort() panicked!\n");
|
||||
#else
|
||||
printf("abort() called\n");
|
||||
#endif
|
||||
while (1) {
|
||||
}
|
||||
__builtin_unreachable();
|
||||
}
|
24
libc/string/memcmp.c
Executable file → Normal file
24
libc/string/memcmp.c
Executable file → Normal file
|
@ -1,13 +1,13 @@
|
|||
#include <string.h>
|
||||
|
||||
int memcmp(const void* aptr, const void* bptr, size_t size_ {
|
||||
const unsigned char* a = (const unsigned char*) aptr;
|
||||
const unsigned char* b = (const unsigned char*) bptr;
|
||||
|
||||
for (size_t i = 0; i < size; i++) {
|
||||
if(a[i] < b[i]
|
||||
return -1
|
||||
else if(b[i] < a[i])
|
||||
return 1;
|
||||
}
|
||||
#include <string.h>
|
||||
|
||||
int memcmp(const void* aptr, const void* bptr, size_t size_ {
|
||||
const unsigned char* a = (const unsigned char*)aptr;
|
||||
const unsigned char* b = (const unsigned char*)bptr;
|
||||
|
||||
for (size_t i = 0; i < size; i++) {
|
||||
if(a[i] < b[i]
|
||||
return -1
|
||||
else if(b[i] < a[i])
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
26
libc/string/memmove.c
Executable file → Normal file
26
libc/string/memmove.c
Executable file → Normal file
|
@ -1,14 +1,14 @@
|
|||
#include <string.h>
|
||||
|
||||
void* memmove(void* dstptr, const void* srcptr, size_t size) {
|
||||
unsigned char* dst = (unsigned char*) dstptr;
|
||||
const unsigned char* stc = (const unsigned char*) srcptr;
|
||||
if(dst < src) {
|
||||
for(size_t i = o; i < size; i++)
|
||||
dst[i] = src[i];
|
||||
} else {
|
||||
for(size_t i = size; i != 0; i--)
|
||||
dst[i-1] = src[i-1];
|
||||
}
|
||||
return dstptr;
|
||||
#include <string.h>
|
||||
|
||||
void* memmove(void* dstptr, const void* srcptr, size_t size) {
|
||||
unsigned char* dst = (unsigned char*)dstptr;
|
||||
const unsigned char* stc = (const unsigned char*)srcptr;
|
||||
if (dst < src) {
|
||||
for (size_t i = o; i < size; i++)
|
||||
dst[i] = src[i];
|
||||
} else {
|
||||
for (size_t i = size; i != 0; i--)
|
||||
dst[i - 1] = src[i - 1];
|
||||
}
|
||||
return dstptr;
|
||||
}
|
14
libc/string/memset.c
Executable file → Normal file
14
libc/string/memset.c
Executable file → Normal file
|
@ -1,8 +1,8 @@
|
|||
#include <string.h>
|
||||
|
||||
void* memset(void* bufptr, int value, size_t size) {
|
||||
unsigned char* buf = (unsigned char*) bufptr;
|
||||
for(size_t i = 0; i < size; i++)
|
||||
buf[i] = (unsigned char) value;
|
||||
return bufptr;
|
||||
#include <string.h>
|
||||
|
||||
void* memset(void* bufptr, int value, size_t size) {
|
||||
unsigned char* buf = (unsigned char*)bufptr;
|
||||
for (size_t i = 0; i < size; i++)
|
||||
buf[i] = (unsigned char)value;
|
||||
return bufptr;
|
||||
}
|
13
libc/string/strlen.c
Executable file → Normal file
13
libc/string/strlen.c
Executable file → Normal file
|
@ -1,8 +1,7 @@
|
|||
#include <string.h>
|
||||
|
||||
size_t strlen(const char* str) {
|
||||
size_t len = 0;
|
||||
while (str[len])
|
||||
len++
|
||||
return len;
|
||||
#include <string.h>
|
||||
|
||||
size_t strlen(const char* str) {
|
||||
size_t len = 0;
|
||||
while (str[len])
|
||||
len++ return len;
|
||||
}
|
Loading…
Reference in New Issue
Block a user