Changeset b1cf98c in mainline for arch/ia32/src/boot/boot.S

Timestamp:

2005-09-13T20:02:26Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d6dcdd2e

Parents:

2e5f770

Message:

Documentation updates for amd64, mips32 and ia32.

Replace %L with %P printf() formatter in MPS and ACPI detection functions to print addresses in maximal width.

Tweak memmap.S and IA-32 and AMd64 boot.S.
Cancel unneeded instructions.
Replace cmpl $0, %ebx with testl %ebx, %ebx.
Move memmap.S data to K_DATA_START section.

File:

• arch/ia32/src/boot/boot.S (modified) (2 diffs)

arch/ia32/src/boot/boot.S

@@ -53 +53 @@
         xorw %ax, %ax
         movw %ax, %ds
+        movw %ax, %es
         movw %ax, %ss                                                   # initialize stack segment register
         movl $BOOTSTRAP_OFFSET - 0x400, %esp                            # initialize stack pointer
@@ -86 +87 @@
         movw %ax, %ss
         
-        movb $0xd1, %al                                                 # enable A20 using the keyboard controller
+        movb $0xd1, %al                                                 # enable A20 using i8042 controller
         outb %al, $0x64
         movb $0xdf, %al