CeDOS - libcedos/cedos.c

libcedos/cedos.c (view raw)

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#include "cedos.h"
#include "assembly.h"
#include <stdint.h>

/*int sysprint(const char *fmt, int arg1, int arg2) {
    int res = 0;
    interrupt(0x30, res, 4, fmt, arg1, arg2);
    return res;
}*/

int yield() {
    volatile uint32_t res = 0;
    interrupt(0x20, res, 0, 0, 0, 0);
    return res;
}

int get_pid() {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 3, 0, 0, 0);
    return res;
}

ssize_t sc_file_read(int fd, char *buffer, size_t size) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 0, fd, buffer, size);
    return res;
}

ssize_t sc_file_write(int fd, const char *buffer, size_t size) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 1, fd, buffer, size);
    return res;
}

int sc_file_lseek(int fd, uint32_t offset, int whence) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 10, fd, offset, whence);
    return res;
}

int sc_file_tell(int fd) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 11, fd, 0, 0);
    return res;
}

int process_spawn(const char *fname, const char *args) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 4, fname, args, 0);
    return res;
}

int process_spawn_pipe(const char *fname, const char *args, int fd_in, int fd_out) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 4, fname, args, fd_in | (fd_out << 8));
    return res;
}

int process_wait(int pid) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 5, pid, 0, 0);
	return res;
}

int sc_file_open(const char *pathname, uint32_t flags) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 6, pathname, flags, 0);
    return res;
}

void graphics_set_mode(int mode) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 7, mode, 0, 0);
}

void hard_reset() {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 8, 0, 0, 0);
}

int dir_next(int fd, int index, char *fname_buffer) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 9, fd, index, fname_buffer);
    return res;
}

int sc_time_get_ticks(void) {
    volatile int res = 0;
    interrupt(0x30, res, 12, 0, 0, 0);
    return res;
}

uint32_t sc_mem_usage(void) {
    volatile int res = 0;
    interrupt(0x30, res, 13, 0, 0, 0);
    return res;
}

void process_kill(int pid) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 14, pid, 0, 0);
}

void sleep(int msec) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 15, msec, 0, 0);
}

int time_now(datetime_t *buffer) {
    volatile uint32_t res = 0;
    interrupt(0x30, res, 16, buffer, 0, 0);
	return 0;
}