Wrote file, not really needed, though

2021-01-10 14:43:23 -06:00 · 2021-01-10 14:43:23 -06:00 · 36f5c39945
parent d19b6f69e5
commit 36f5c39945
1 changed files with 21 additions and 0 deletions
--- a/arch/i386/pmode.S
+++ b/arch/i386/pmode.S
@ -0,0 +1,21 @@
+  .globl enter_pmode
+  .type enter_pmode,%function
+
+enter_pmode:
+  .func enter_pmode
+  cli
+  mov %cr0, %eax
+  or  $1, %eax
+  mov %eax, %cr0
+  ljmp $0x8, $pmode
+
+.code32
+pmode:
+  mov $0x10, %ax
+  mov %ax, %ds
+  mov %ax, %ss
+  mov %ax, %es
+  mov %ax, %fs
+  mov %ax, %gs
+  mov $0x90000, %esp
+  lret