diff options
Diffstat (limited to 'boot/boot.zig')
| -rw-r--r-- | boot/boot.zig | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/boot/boot.zig b/boot/boot.zig index a7822af..2303409 100644 --- a/boot/boot.zig +++ b/boot/boot.zig @@ -1,6 +1,7 @@ const std = @import("std"); const limine = @import("limine.zig"); const serial = @import("serial.zig"); +const framebuffer = @import("framebuffer.zig"); // We need a panic handler otherwise zig won't be happy, // std usually formats a message through std.Io.Writer which @@ -9,9 +10,9 @@ const serial = @import("serial.zig"); pub const panic = std.debug.FullPanic(struct { fn halt(msg: []const u8, _: ?usize) noreturn { serial.init(); - serial.write("\n!!! uhhhh engine kaput : "); + serial.write("\r\n!!! uhhhh engine kaput : "); serial.write(msg); - serial.write("\n"); + serial.write("\r\n"); while (true) asm volatile ("hlt"); } }.halt); @@ -24,6 +25,22 @@ export var requests_end: limine.RequestsEndMarker linksection(".limine_requests_ // ENTRY(_start) export fn _start() callconv(.c) noreturn { serial.init(); - serial.write("if you see this, it means revel didn't shit the bed"); + serial.write("if you see this, it means revel didn't shit the bed\r\n"); + + if (framebuffer.get()) |screen| { + // XOR texture + var y: usize = 0; + while (y < screen.height) : (y += 1) { + var x: usize = 0; + while (x < screen.width) : (x += 1) { + const v: u32 = @intCast((x ^ y) & 0xFF); + framebuffer.putpixel(screen, x, y, (v << 16) | (v << 8) | v); + } + } + serial.write("drew to the framebuffer\r\n"); + } else { + serial.write("limine was a piece of shit.\r\n"); + } + while (true) asm volatile ("hlt"); } |