diff options
Diffstat (limited to 'src/devices/oprom/x86_asm.S')
| -rw-r--r-- | src/devices/oprom/x86_asm.S | 60 |
1 files changed, 30 insertions, 30 deletions
diff --git a/src/devices/oprom/x86_asm.S b/src/devices/oprom/x86_asm.S index 724fe02c0d..469c42f90b 100644 --- a/src/devices/oprom/x86_asm.S +++ b/src/devices/oprom/x86_asm.S @@ -25,7 +25,7 @@ /* This is the intXX interrupt handler stub code. It gets copied * to the IDT and to some fixed addresses in the F segment. Before - * the code can used, it gets patched up by the C function copying + * the code can used, it gets patched up by the C function copying * it: byte 3 (the $0 in movb $0, %al) is overwritten with the int#. */ @@ -85,11 +85,11 @@ __run_optionrom = RELOCATED(.) * protected mode is turned off. */ mov $0x30, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss + mov %ax, %ds + mov %ax, %es + mov %ax, %fs + mov %ax, %gs + mov %ax, %ss /* Turn off protection */ movl %cr0, %eax @@ -114,9 +114,9 @@ __run_optionrom = RELOCATED(.) lidt __realmode_idt /* Set all segments to 0x0000, ds to 0x0040 */ - mov %ax, %es - mov %ax, %fs - mov %ax, %gs + mov %ax, %es + mov %ax, %fs + mov %ax, %gs mov $0x40, %ax mov %ax, %ds @@ -140,8 +140,8 @@ __run_optionrom = RELOCATED(.) data32 ljmp $0x10, $RELOCATED(1f) 1: .code32 - movw $0x18, %ax - mov %ax, %ds + movw $0x18, %ax + mov %ax, %ds mov %ax, %es mov %ax, %fs mov %ax, %gs @@ -185,11 +185,11 @@ __run_vsa = RELOCATED(.) * protected mode is turned off. */ mov $0x30, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss + mov %ax, %ds + mov %ax, %es + mov %ax, %fs + mov %ax, %gs + mov %ax, %ss /* Turn off protection */ movl %cr0, %eax @@ -214,9 +214,9 @@ __run_vsa = RELOCATED(.) lidt __realmode_idt /* Set all segments to 0x0000, ds to 0x0040 */ - mov %ax, %es - mov %ax, %fs - mov %ax, %gs + mov %ax, %es + mov %ax, %fs + mov %ax, %gs mov $0x40, %ax mov %ax, %ds mov %cx, %ax // restore ax @@ -238,8 +238,8 @@ __run_vsa = RELOCATED(.) data32 ljmp $0x10, $RELOCATED(1f) 1: .code32 - movw $0x18, %ax - mov %ax, %ds + movw $0x18, %ax + mov %ax, %ds mov %ax, %es mov %ax, %fs mov %ax, %gs @@ -275,17 +275,17 @@ __run_interrupt = RELOCATED(.) * descriptors. They will retain these configurations (limits, * writability, etc.) once protected mode is turned off. */ - mov $0x30, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss + mov $0x30, %ax + mov %ax, %ds + mov %ax, %es + mov %ax, %fs + mov %ax, %gs + mov %ax, %ss /* Turn off protected mode */ - movl %cr0, %eax + movl %cr0, %eax andl $~PE, %eax - movl %eax, %cr0 + movl %eax, %cr0 /* Now really going into real mode */ data32 ljmp $0, $RELOCATED(1f) @@ -302,7 +302,7 @@ __run_interrupt = RELOCATED(.) movl %eax, %esp /* Load 16-bit intXX IDT */ - xor %ax, %ax + xor %ax, %ax mov %ax, %ds lidt __realmode_idt |