mirrors/Zag
1
0
Fork 0
mirror of https://github.com/rdmsr/zag.git synced 2026-10-29 22:48:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

feat: amd64 interrupts

Browse Source
This commit is contained in:
Loïc Grégoire
2026-03-30 22:15:44 -04:00
parent 827e8bf0ca
commit 55379d671f
9 changed files with 842 additions and 464 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/platform/pc/impl.zig
+11 -12
View File
@@ -3,35 +3,34 @@ const amd64 = b.arch;
const std = @import("std");
const ki = b.ke.private;
const cpu = amd64.cpu;
pub const name = "PC";
const com1 = 0x3F8;
fn com1_init() linksection(b.init) void {
cpu.outb(com1 + 0x3, 0x80);
cpu.outb(com1 + 0x0, 0x0c);
cpu.outb(com1 + 0x1, 0x00);
cpu.outb(com1 + 0x3, 0x03);
cpu.outb(com1 + 0x2, 0xc7);
cpu.outb(com1 + 0x4, 0x00);
amd64.outb(com1 + 0x3, 0x80);
amd64.outb(com1 + 0x0, 0x0c);
amd64.outb(com1 + 0x1, 0x00);
amd64.outb(com1 + 0x3, 0x03);
amd64.outb(com1 + 0x2, 0xc7);
amd64.outb(com1 + 0x4, 0x00);
}
fn com1_write(c: u8) void {
while ((cpu.inb(com1 + 0x5) & 0x20) == 0) {}
while ((amd64.inb(com1 + 0x5) & 0x20) == 0) {}
if (c == '\n') {
cpu.outb(com1, '\r');
amd64.outb(com1, '\r');
}
cpu.outb(com1, c);
amd64.outb(com1, c);
}
pub fn early_init() linksection(b.init) void {
com1_init();
cpu.detect_cpu_features();
amd64.detect_cpu_features();
const f = cpu.cpu_features;
const f = amd64.cpu_features;
std.log.info("amd64/cpu: {s}", .{&f.brand_string});
std.log.info("amd64/cpu: vendor={s} x2apic={} la57={} nx={} pcid={} pge={} smap={} smep={} pdpe1g={} invtsc={} xsave={} fxsave={} tsc-deadline={}", .{