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cowos moves to 64bit! and framebuffers too ig

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cowmonk 2025-05-23 17:24:25 -07:00
parent b78e4fc24d
commit babc65305d
32 changed files with 4074 additions and 146 deletions
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37
kernel/init/kernel.c
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@ -1,10 +1,41 @@
#include <drivers/video/vga.h>
#include <string.h>
#include <klibc/string.h>
/* #include <drivers/video/vga.h> */
#include <stddef.h>
#include <bootloader.h>
static void hcf(void) {
for (;;) {
__asm__("hlt");
}
}
void
kernel_main(void)
{
/* Make sure the bootloader understands our base revision */
if (LIMINE_BASE_REVISION_SUPPORTED == 0) hcf();
/* ensure a framebuffer */
if (framebuffer_request.response == NULL
|| framebuffer_request.response->framebuffer_count < 1) hcf();
/* fetch the first framebuffer */
struct limine_framebuffer *framebuffer = framebuffer_request.response->framebuffers[0];
/* assume framebuffer model is RGB w/32-bit pixels */
for (size_t i = 0; i < 100; i++) {
volatile uint32_t *fb_ptr = framebuffer->address;
fb_ptr[i * (framebuffer->pitch / 4) + i] = 0xffffff;
}
/* need to get an actual framebuffer driver working before we can use vga */
/*
term_init();
term_writestr("Hello World!\n");
term_writestr("Hello World!");
*/
/* done so now hang */
hcf();
}