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Diffstat (limited to 'kernel/drivers/fpu.c')
-rw-r--r--kernel/drivers/fpu.c24
1 files changed, 0 insertions, 24 deletions
diff --git a/kernel/drivers/fpu.c b/kernel/drivers/fpu.c
deleted file mode 100644
index e61e267..0000000
--- a/kernel/drivers/fpu.c
+++ /dev/null
@@ -1,24 +0,0 @@
-// MIT License, Copyright (c) 2020 Marvin Borner
-
-#include <def.h>
-
-void set_fpu_cw(const u16 cw)
-{
- __asm__ volatile("fldcw %0" ::"m"(cw));
-}
-
-void fpu_install(void)
-{
- __asm__ volatile("clts");
- u32 t = 0;
- __asm__ volatile("mov %%cr0, %0" : "=r"(t));
- t &= (u32) ~(1 << 2);
- t |= (1 << 1);
- __asm__ volatile("mov %0, %%cr0" ::"r"(t));
-
- __asm__ volatile("mov %%cr4, %0" : "=r"(t));
- t |= 3 << 9;
- __asm__ volatile("mov %0, %%cr4" ::"r"(t));
-
- __asm__ volatile("fninit");
-}