diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/devices/oprom/x86_asm.S | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/src/devices/oprom/x86_asm.S b/src/devices/oprom/x86_asm.S index e355da8fb9..d5b5e1859f 100644 --- a/src/devices/oprom/x86_asm.S +++ b/src/devices/oprom/x86_asm.S @@ -82,10 +82,10 @@ __realmode_call = RELOCATED(.) /* entry point */ movl 36(%ebp), %eax - movw %ax, __lcall_instr + 1 + mov %ax, __lcall_instr + 1 andl $0xffff0000, %eax shrl $4, %eax - movw %ax, __lcall_instr + 3 + mov %ax, __lcall_instr + 3 /* initial register values */ movl 40(%ebp), %eax @@ -147,7 +147,7 @@ __realmode_call = RELOCATED(.) movl __registers + 8, %ecx movl __registers + 12, %edx movl __registers + 16, %esi - movl __registers + 20, %edi + movl __registers + 20, %edi /* Set all segments to 0x0000, ds to 0x0040 */ push %ax @@ -165,8 +165,8 @@ __lcall_instr = RELOCATED(.) .word 0x0000, 0x0000 /* ************************************ */ - /* If we got here, just about done. - * Need to get back to protected mode + /* If we got here, we are just about done. + * Need to get back to protected mode. */ movl %cr0, %eax orl $PE, %eax @@ -178,7 +178,7 @@ __lcall_instr = RELOCATED(.) data32 ljmp $0x10, $RELOCATED(1f) 1: .code32 - movw $0x18, %ax + mov $0x18, %ax mov %ax, %ds mov %ax, %es mov %ax, %fs @@ -294,7 +294,7 @@ __intXX_instr = RELOCATED(.) data32 ljmp $0x10, $RELOCATED(1f) 1: .code32 - movw $0x18, %ax + mov $0x18, %ax mov %ax, %ds mov %ax, %es mov %ax, %fs @@ -337,7 +337,7 @@ __interrupt_handler_16bit = RELOCATED(.) data32 ljmp $0x10, $RELOCATED(1f) 1: .code32 - movw $0x18, %ax + mov $0x18, %ax mov %ax, %ds mov %ax, %es mov %ax, %fs @@ -382,13 +382,6 @@ __interrupt_handler_16bit = RELOCATED(.) mov %ax, %ds lidt __realmode_idt - /* Set up segment registers to segment 0x0000 and ds to 0x040 */ - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov $0x40, %ax - mov %ax, %ds - /* Restore all registers, including those * manipulated by the C handler */ |