From 912d2e3c7eb1baa71dda2c0a28aa5809eaa96f27 Mon Sep 17 00:00:00 2001 From: dzwdz Date: Sat, 16 Jul 2022 13:33:00 +0200 Subject: amd64: barely boot into kernel code --- src/kernel/arch/i386/interrupts/irq.c | 33 --------------------------------- 1 file changed, 33 deletions(-) delete mode 100644 src/kernel/arch/i386/interrupts/irq.c (limited to 'src/kernel/arch/i386/interrupts/irq.c') diff --git a/src/kernel/arch/i386/interrupts/irq.c b/src/kernel/arch/i386/interrupts/irq.c deleted file mode 100644 index 5918169..0000000 --- a/src/kernel/arch/i386/interrupts/irq.c +++ /dev/null @@ -1,33 +0,0 @@ -#include -#include -#include - -static const int PIC1 = 0x20; -static const int PIC2 = 0xA0; - -void irq_init(void) { - port_out8(PIC1, 0x11); /* start init sequence */ - port_out8(PIC2, 0x11); - - port_out8(PIC1+1, 0x20); /* interrupt offsets */ - port_out8(PIC2+1, 0x30); - - port_out8(PIC1+1, 0x4); /* just look at the osdev wiki lol */ - port_out8(PIC2+1, 0x2); - - port_out8(PIC1+1, 0x1); /* 8086 mode */ - port_out8(PIC2+1, 0x1); - - uint8_t mask = 0xff; - mask &= ~(1 << 1); // keyboard - mask &= ~(1 << 4); // COM1 - - port_out8(PIC1+1, mask); - port_out8(PIC2+1, 0xff); -} - -void irq_eoi(uint8_t line) { - port_out8(PIC1, 0x20); - if (line >= 8) - port_out8(PIC2, 0x20); -} -- cgit v1.2.3