luciaos/progs.c

62 lines
2.1 KiB
C

#include "progs.h"
#include "file.h"
extern char _USERMODE, _USERMODE_END;
extern uint32_t create_user_child(uint32_t esp, uint32_t eip, uint32_t argc, ...);
void ProgramLoadTest(char *path) {
uint16_t *vga_text = (uint16_t *)0xb8000;
for (int i = 0; i < 80*25; i++)
vga_text[i] = 0x0f00;
uint32_t successcount;
uint8_t *diskReadBuf = (uint8_t *)&_USERMODE;
{
uint32_t err;
dirent de;
err = path_getinfo(path, &de);
if (de.size > 0x300000 || err) {
vga_text += printStr("File too large or error.", vga_text);
kbd_wait();
return;
}
FILE file;
err = file_open(&file, path, OPENREAD);
if (err) {
vga_text += printStr("Open Error: ", vga_text);
printDword(err, vga_text);
return;
}
err = file_seek(&file, 0);
if (err) {
vga_text += printStr("Seek Error", vga_text);
return;
}
successcount = err = file_read(&file, diskReadBuf, de.size);
if (!err && de.size > 0) {
vga_text += printStr("Read Error", vga_text);
printDword(err, vga_text);
return;
}
}
vga_text += printStr("Successfully loaded program \"", vga_text);
vga_text += printStr((char*)path, vga_text);
vga_text += printStr("\", ", vga_text);
vga_text += printDec(successcount, vga_text);
vga_text += printStr(" Bytes.", vga_text);
vga_text = nextLine(vga_text,(uint16_t*)0xb8000);
vga_text += printStr("Press any key to run.", vga_text);
kbd_wait();
uint32_t res = create_user_child((uintptr_t)&_USERMODE_END, (uintptr_t)&_USERMODE, 0);
union V86Regs_t regs;
regs.w.ax = 3; // text mode
V8086Int(0x10, &regs);
vga_text = (uint16_t *)0xb8000;
for (int i = 0; i < 80*25; i++)
vga_text[i] = 0x0f00;
vga_text += printStr("Program returned code: ", vga_text);
vga_text += printDec(res, vga_text);
vga_text += printStr(" (0x", vga_text);
vga_text += printDword(res, vga_text);
vga_text += printStr("). Press any key to exit.", vga_text);
kbd_wait();
}