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/* interrupt.S - interrupt handlers */
#include <asm/interrupt.h>
.text
.global EXC_DIV_ERROR, EXC_DEBUG, EXC_NMI, EXC_BREAKPOINT
.global EXC_INTO_OVERFLOW, EXC_BOUND_OVERFLOW, EXC_INVAL_OPCODE, EXC_NO_COPROCESSOR
.global EXC_DOUBLE_EXCEPTION, EXC_COPROC_PROT_ERROR, EXC_INVAL_TSS, EXC_SEG_NOT_PRESENT
.global EXC_STACK_FAULT, EXC_GEN_PROT_VIOLATION, EXC_PAGE_FAULT, EXC_RESERVED
.global EXC_COPROCESSOR_ERROR, EXC_ALIGN_ERROR
EXC_DIV_ERROR:
mov $16,%ax
mov %ax,%ds
pushl $exc_div_error_str
call print
addl $4,%esp
jmp looping
EXC_DEBUG:
mov $16,%ax
mov %ax,%ds
pushl $exc_debug_str
call print
addl $4,%esp
jmp looping
EXC_NMI:
mov $16,%ax
mov %ax,%ds
pushl $exc_nmi_str
call print
addl $4,%esp
jmp looping
EXC_BREAKPOINT:
mov $16,%ax
mov %ax,%ds
pushl $exc_breakpoint_str
call print
addl $4,%esp
jmp looping
EXC_INTO_OVERFLOW:
mov $16,%ax
mov %ax,%ds
pushl $exc_into_overflow_str
call print
addl $4,%esp
jmp looping
EXC_BOUND_OVERFLOW:
mov $16,%ax
mov %ax,%ds
pushl $exc_bound_overflow_str
call print
addl $4,%esp
jmp looping
EXC_INVAL_OPCODE:
mov $16,%ax
mov %ax,%ds
pushl $exc_inval_opcode_str
call print
addl $4,%esp
jmp looping
EXC_NO_COPROCESSOR:
mov $16,%ax
mov %ax,%ds
pushl $exc_no_coprocessor_str
call print
addl $4,%esp
jmp looping
EXC_DOUBLE_EXCEPTION:
mov $16,%ax
mov %ax,%ds
pushl $exc_double_exception_str
call print
addl $4,%esp
jmp looping
EXC_COPROC_PROT_ERROR:
mov $16,%ax
mov %ax,%ds
pushl $exc_coproc_prot_error_str
call print
addl $4,%esp
jmp looping
EXC_INVAL_TSS:
mov $16,%ax
mov %ax,%ds
pushl $exc_inval_tss_str
call print
addl $4,%esp
jmp looping
EXC_SEG_NOT_PRESENT:
mov $16,%ax
mov %ax,%ds
pushl $exc_seg_not_present_str
call print
addl $4,%esp
jmp looping
EXC_STACK_FAULT:
mov $16,%ax
mov %ax,%ds
pushl $exc_stack_fault_str
call print
addl $4,%esp
jmp looping
EXC_GEN_PROT_VIOLATION:
mov $16,%ax
mov %ax,%ds
pushl $exc_gen_prot_violation_str
call print
addl $4,%esp
jmp looping
EXC_PAGE_FAULT:
mov $16,%ax
mov %ax,%ds
pushl $exc_page_fault_str
call print
addl $4,%esp
jmp looping
EXC_RESERVED:
mov $16,%ax
mov %ax,%ds
pushl $exc_reserved_str
call print
addl $4,%esp
jmp looping
EXC_COPROCESSOR_ERROR:
mov $16,%ax
mov %ax,%ds
pushl $exc_coprocessor_error_str
call print
addl $4,%esp
jmp looping
EXC_ALIGN_ERROR:
mov $16,%ax
mov %ax,%ds
pushl $exc_align_error_str
call print
addl $4,%esp
looping: jmp looping
.data
exc_div_error_str: .asciz "EXCEPTION: DIVIDE ERROR\r\n"
exc_debug_str: .asciz "EXCEPTION: DEBUG EXCEPTION\r\n"
exc_nmi_str: .asciz "EXCEPTION: NON-MASKABLE INTERRUPT\r\n"
exc_breakpoint_str: .asciz "EXCEPTION: BREAKPOINT\r\n"
exc_into_overflow_str: .asciz "EXCEPTION: OVERFLOW (INTO)\r\n"
exc_bound_overflow_str: .asciz "EXCEPTION: OVERFLOW (BOUND)\r\n"
exc_inval_opcode_str: .asciz "EXCEPTION: INVALID OPCODE\r\n"
exc_no_coprocessor_str: .asciz "EXCEPTION: NO COPROCESSOR\r\n"
exc_double_exception_str: .asciz "EXCEPTION: DOUBLE EXCEPTION\r\n"
exc_coproc_prot_error_str: .asciz "EXCEPTION: COPROCESSOR PROTECTION ERROR\r\n"
exc_inval_tss_str: .asciz "EXCEPTION: INVALID TSS SEGMENT\r\n"
exc_seg_not_present_str: .asciz "EXCEPTION: SEGMENT NOT PRESENT\r\n"
exc_stack_fault_str: .asciz "EXCEPTION: STACK FAULT\r\n"
exc_gen_prot_violation_str: .asciz "EXCEPTION: GENERAL PROTECTION VIOLATION\r\n"
exc_page_fault_str: .asciz "EXCEPTION: PAGE FAULT\r\n"
exc_reserved_str: .asciz "EXCEPTION: UNKNOWN ERROR\r\n"
exc_coprocessor_error_str: .asciz "EXCEPTION: COPROCESSOR ERROR\r\n"
exc_align_error_str: .asciz "EXCEPTION: ALIGNMENT ERROR\r\n"
.text
.global IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7, IRQ8, IRQ9, IRQ10, IRQ11, IRQ12, IRQ13, IRQ14, IRQ15
IRQ0:
pusha
pushf
incb cur_blink_counter
cmpb $CUR_BLINK,cur_blink_counter
jb no_blink
subb $CUR_BLINK,cur_blink_counter
call console_cur_blink
no_blink:
cmpl $0,timers
je no_timer
decl timers
no_timer:
mov $0x20, %al
out %al, $0x20
popf
popa
iret
IRQ1:
push %ax
push %ds
push %edx
mov $16,%ax
mov %ax,%ds
in $0x60,%al
call kb_write_keycode
mov $0x20, %al
out %al, $0x20
pop %edx
pop %ds
pop %ax
iret
IRQ2:
push %ax
mov $0x20, %al
out %al, $0x20
pop %ax
iret
IRQ3:
push %ax
mov $0x20, %al
out %al, $0x20
pop %ax
iret
IRQ4:
push %ax
mov $0x20, %al
out %al, $0x20
pop %ax
iret
IRQ5:
push %ax
mov $0x20, %al
out %al, $0x20
pop %ax
iret
IRQ6:
#push %ax
pushf
pusha
call floppy_IRQ
mov $0x20, %al
out %al, $0x20
#pop %ax
popa
popf
iret
IRQ7:
push %ax
mov $0x20, %al
out %al, $0x20
pop %ax
iret
IRQ8:
push %ax
mov $0x20, %al
out %al, $0xA0
pop %ax
iret
IRQ9:
push %ax
mov $0x20, %al
out %al, $0xA0
pop %ax
iret
IRQ10:
push %ax
mov $0x20, %al
out %al, $0xA0
pop %ax
iret
IRQ11:
push %ax
mov $0x20, %al
out %al, $0xA0
pop %ax
iret
IRQ12:
push %ax
mov $0x20, %al
out %al, $0xA0
pop %ax
iret
IRQ13:
push %ax
mov $0x20, %al
out %al, $0xA0
pop %ax
iret
IRQ14:
push %ax
mov $0x20, %al
out %al, $0xA0
pop %ax
iret
IRQ15:
push %ax
mov $0x20, %al
out %al, $0xA0
pop %ax
iret
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