diff options
Diffstat (limited to 'c/src/lib/libbsp/i386/shared/irq/irq_asm.S')
| -rw-r--r-- | c/src/lib/libbsp/i386/shared/irq/irq_asm.S | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/c/src/lib/libbsp/i386/shared/irq/irq_asm.S b/c/src/lib/libbsp/i386/shared/irq/irq_asm.S index a4bc1a2299..9c5e327379 100644 --- a/c/src/lib/libbsp/i386/shared/irq/irq_asm.S +++ b/c/src/lib/libbsp/i386/shared/irq/irq_asm.S @@ -15,8 +15,8 @@ #include <irq_asm.h> BEGIN_CODE - -SYM (_ISR_Handler): + +SYM (_ISR_Handler): /* * Before this was point is reached the vectors unique * entry point did the following: @@ -77,7 +77,7 @@ SYM (_ISR_Handler): outb $PIC_SLAVE_COMMAND_IO_PORT .master: outb $PIC_MASTER_COMMAND_IO_PORT - + .check_stack_switch: pushl ebp movl esp, ebp /* ebp = previous stack pointer */ @@ -100,12 +100,12 @@ nested: * interrupt source is now masked via i8259 */ sti - + /* * ECX is preloaded with the vector number but it is a scratch register * so we must save it again. */ - + pushl ecx /* push vector number */ mov SYM (current_irq) (,ecx,4),eax /* eax = Users handler */ @@ -129,8 +129,8 @@ nested: outb $PIC_MASTER_IMR_IO_PORT movb ah, al outb $PIC_SLAVE_IMR_IO_PORT - - + + decl SYM (_ISR_Nest_level) /* one less ISR nest level */ /* If interrupts are nested, */ /* then dispatching is disabled */ @@ -149,13 +149,13 @@ nested: /* while in interrupt handler? */ je .exit /* No, exit */ - + .bframe: movl $0, SYM (_ISR_Signals_to_thread_executing) /* * This code is the less critical path. In order to have a single - * Thread Context, we take the same frame than the one pushed on - * exceptions. This makes sense because Signal is a software + * Thread Context, we take the same frame than the one pushed on + * exceptions. This makes sense because Signal is a software * exception. */ popl edx @@ -172,11 +172,11 @@ nested: popa addl $8, esp iret - + .schedule: /* * the scratch registers have already been saved and we are already - * back on the thread system stack. So we can call _Thread_Displatch + * back on the thread system stack. So we can call _Thread_Displatch * directly */ call _Thread_Dispatch @@ -203,7 +203,7 @@ nested: popl eax iret - + #define DISTINCT_INTERRUPT_ENTRY(_vector) \ .p2align 4 ; \ PUBLIC (rtems_irq_prologue_ ## _vector ) ; \ @@ -230,21 +230,21 @@ DISTINCT_INTERRUPT_ENTRY(12) DISTINCT_INTERRUPT_ENTRY(13) DISTINCT_INTERRUPT_ENTRY(14) DISTINCT_INTERRUPT_ENTRY(15) - + /* * routine used to initialize the IDT by default */ - + PUBLIC (default_raw_idt_handler) PUBLIC (raw_idt_notify) - + SYM (default_raw_idt_handler): pusha cld call raw_idt_notify popa iret - + END_CODE END |