diff options
Diffstat (limited to '')
| -rw-r--r-- | c/src/lib/libbsp/i386/pc386/startup/ldsegs.s | 30 |
1 files changed, 5 insertions, 25 deletions
diff --git a/c/src/lib/libbsp/i386/pc386/startup/ldsegs.s b/c/src/lib/libbsp/i386/pc386/startup/ldsegs.s index f2171575ce..8805128e69 100644 --- a/c/src/lib/libbsp/i386/pc386/startup/ldsegs.s +++ b/c/src/lib/libbsp/i386/pc386/startup/ldsegs.s @@ -45,12 +45,13 @@ /*----------------------------------------------------------------------------+ | CODE section +----------------------------------------------------------------------------*/ - +EXTERN (rtems_i8259_masks) + BEGIN_CODE EXTERN (_establish_stack) EXTERN (Timer_exit) - EXTERN (Clock_exit) + EXTERN (clockOff) .p2align 4 /*----------------------------------------------------------------------------+ @@ -95,25 +96,6 @@ next_step: movw ax, fs movw ax, gs - /* Set default interrupt handler */ - movl $0, ecx - movl $Interrupt_descriptor_table, eax - movl $_default_int_handler, ebx - movl ebx, edx - sarl $16, edx -loop: - movw bx, (eax) - movw $0x8, 2(eax) - movw $0x8e00, 4(eax) - movw dx, 8(eax) - addl $8, eax - addl $1, ecx - cmpl $255, ecx - jle loop - - - - /*---------------------------------------------------------------------+ | Now we have to reprogram the interrupts :-(. We put them right after | the intel-reserved hardware interrupts, at int 0x20-0x2F. There they @@ -157,6 +139,8 @@ loop: outb al, $0x21 /* is cascaded */ call SYM(delay) + movw $0xFFFB, SYM(i8259s_cache) /* set up same values in cache */ + jmp SYM (_establish_stack) # return to the bsp entry code /*-------------------------------------------------------------------------+ @@ -185,10 +169,6 @@ SYM (_return_to_monitor): +--------------------------------------------------------------------------*/ .p2align 4 - PUBLIC (_default_int_handler) -SYM (_default_int_handler): - iret - /*---------------------------------------------------------------------------+ | GDT itself +--------------------------------------------------------------------------*/ |