helos1/kernel/kmain.c

80 lines
2.4 KiB
C

#include "../main.h"
#include "kmain.h"
#include "../runtime/stdio.h"
#include "../runtime/panic_assert.h"
#include "../memory/memory.h"
#include "../memory/paging_internal.h"
#include "../interrupt/interrupt.h"
#include "../interrupt/handlers.h"
#include "../interrupt/syscall.h"
#include "../driver/irq/pic/pic.h"
#include "../driver/irq/pic/ps2/ps2.h"
#include "../execformat/pe/reloc.h"
void execformat_pe_ReadSystemHeader(execformat_pe_PortableExecutable *pe);
#include "../graphics/graphics.h"
#include "../graphics/xcursor/xcursor.h"
#include "../embed/files.h"
static void tellRIP() {
uint64_t a, b;
asm volatile("leaq (%%rip), %0\n\tleaq runtime_InitPaging(%%rip), %1"
: "=r"(a), "=r"(b));
io_Printf("tellRIP(): Stack position: %llx, RIP=%llx, kMain_StackPosition:%llx(%llx), interrupt_Int128: %llx\n", &a, a, (uint64_t)&kMain_StackPosition, b, (uint64_t)interrupt_Int128);
}
static inline int minmax(int val, int min, int max) {
if (val > max)
return max;
if (val < min)
return min;
return val;
}
SYSV_ABI void kMain() {
io_WriteConsoleASCII("Yes! kMain survived!\n");
uint64_t a;
asm volatile("leaq (%%rip), %0"
: "=r"(a));
io_Printf("Stack position: %llx, RIP=%llx, runtime_InitPaging:%llx, interrupt_Int128: %llx\n", &a, a, (uint64_t)runtime_InitPaging, (uint64_t)interrupt_Int128);
interrupt_Init();
io_WriteConsoleASCII("Interrupts initialized\n");
Syscall(4, 1, 2, 3, 4, 5, 6);
io_WriteConsoleASCII("Returning from Syscall()\n");
tellRIP();
irq_pic_Init();
io_WriteConsoleASCII("PIC IRQ OK\n");
pic_ps2_Init();
io_WriteConsoleASCII("PIC PS/2 OK\n");
xcursor_Xcursor cursor;
xcursor_LoadMemory(&cursor, (void *)embed_Xcursor_Default_Data, embed_Xcursor_Default_Data_End - embed_Xcursor_Default_Data);
if (cursor.header) {
for (int i = 0; i < cursor.n; i++) {
if (cursor.toc[i].type == XCURSOR_CHUNKTYPE_IMAGE /*&& ((xcursor_ChunkHeader_Image *)(embed_Xcursor_Default_Data + cursor.toc[i].offset))->subtype == 24*/) {
xcursor_ChunkHeader_Image *image = (xcursor_ChunkHeader_Image *)(embed_Xcursor_Default_Data + cursor.toc[i].offset);
io_Printf("xcursor_Default: Loading size=%dx%d\n", image->width, image->height);
graphics_Cursor = image;
break;
}
}
} else
io_WriteConsoleASCII("xcursor_Default: failed to load\n");
for (;;) {
asm volatile("hlt");
//io_WriteConsoleASCII("kMain: Interrupt hit\n");
graphics_SwapBuffer();
}
}