push/pop all registers when handling interrupt from kernel

1 files changed, 0 insertions, 60 deletions

diff --git a/entryother.S b/entryother.S
deleted file mode 100644
index dd33680..0000000
--- a/entryother.S
+++ /dev/null
@@ -1,60 +0,0 @@
-#include "asm.h"
-#include "memlayout.h"
-#include "mmu.h"
-	
-# Each non-boot CPU ("AP") is started up in response to a STARTUP
-# IPI from the boot CPU.  Section B.4.2 of the Multi-Processor
-# Specification says that the AP will start in real mode with CS:IP
-# set to XY00:0000, where XY is an 8-bit value sent with the
-# STARTUP. Thus this code must start at a 4096-byte boundary.
-#
-# Because this code sets DS to zero, it must sit
-# at an address in the low 2^16 bytes.
-#
-# Startothers (in main.c) sends the STARTUPs one at a time.
-# It copies this code (start) at 0x7000.  It puts the address of
-# a newly allocated per-core stack in start-12,the address of the
-# place to jump to (apstart32) in start-4, and the physical address
-# of entrypgdir in start-12.
-
-.code16           
-.globl start
-start:
-  cli            
-
-  # Zero data segment registers DS, ES, and SS.
-  xorw    %ax,%ax
-  movw    %ax,%ds
-  movw    %ax,%es
-  movw    %ax,%ss
-
-  # Switch from real to protected mode.  Use a bootstrap GDT that makes
-  # virtual addresses map directly to physical addresses so that the
-  # effective memory map doesn't change during the transition.
-  lgdt    gdtdesc
-  movl    %cr0, %eax
-  orl     $CR0_PE, %eax
-  movl    %eax, %cr0
-
-  # Complete the transition to 32-bit protected mode by using a long jmp
-  # to reload %cs and %eip.  The segment descriptors are set up with no
-  # translation, so that the mapping is still the identity mapping.
-  ljmpl    $(SEG_KCODE32), $start32
-
-.code32
-start32:
- movl $start-12, %esp
- movl start-4, %ecx
- jmp *%ecx
-
-.align 4
-gdt:
-  SEG_NULLASM
-  SEG_ASM(0xa, 0, 0xffffffff)
-  SEG_ASM(0x2, 0, 0xffffffff)
-
-.align  16
-gdtdesc:
-  .word   0x17 # sizeof(gdt)-1
-  .long   gdt
-