d6fa4d5b80
-Add interrupt controller and timer support for qemu virt machine -Switch tty read to irq driven as well
84 lines
1.6 KiB
ArmAsm
84 lines
1.6 KiB
ArmAsm
/*
|
|
* Copyright (c) 2021 Travis Geiselbrecht
|
|
*
|
|
* Use of this source code is governed by a MIT-style
|
|
* license that can be found in the LICENSE file or at
|
|
* https://opensource.org/licenses/MIT
|
|
*/
|
|
#include <lk/asm.h>
|
|
|
|
.text
|
|
|
|
.macro irq_vector n
|
|
m68k_irq_vector_\n:
|
|
moveml %d0-%d7/%a0-%a6, %sp@-
|
|
|
|
pea \n
|
|
movel %sp,%sp@-
|
|
jsr m68k_irq
|
|
addaw #8, %sp
|
|
|
|
moveml %sp@+, %d0-%d7/%a0-%a6
|
|
rte
|
|
.endm
|
|
|
|
irq_vector 0
|
|
irq_vector 1
|
|
irq_vector 2
|
|
irq_vector 3
|
|
irq_vector 4
|
|
irq_vector 5
|
|
irq_vector 6
|
|
irq_vector 7
|
|
|
|
.macro exception_vector name n
|
|
\name:
|
|
moveml %d0-%d7/%a0-%a6, %sp@-
|
|
|
|
pea \n
|
|
movel %sp,%sp@-
|
|
jsr m68k_exception
|
|
addaw #8, %sp
|
|
|
|
moveml %sp@+, %d0-%d7/%a0-%a6
|
|
rte
|
|
.endm
|
|
|
|
exception_vector m68k_access_fault 2
|
|
exception_vector m68k_address_error 3
|
|
exception_vector m68k_illegal_vector 4
|
|
exception_vector m68k_div_by_zero 5
|
|
exception_vector m68k_chk 6
|
|
exception_vector m68k_trap 7
|
|
exception_vector m68k_priv_violation 8
|
|
exception_vector m68k_trace 9
|
|
exception_vector m68k_unimp_aline 10
|
|
exception_vector m68k_unimp_fline 11
|
|
|
|
.section .text.vectab
|
|
.align 4
|
|
DATA(exc_vectors)
|
|
.org 0x8
|
|
.long m68k_access_fault
|
|
.long m68k_address_error
|
|
.long m68k_illegal_vector
|
|
.long m68k_div_by_zero
|
|
.long m68k_chk
|
|
.long m68k_trap
|
|
.long m68k_priv_violation
|
|
.long m68k_trace
|
|
.long m68k_unimp_aline
|
|
.long m68k_unimp_fline
|
|
.org 0x60
|
|
.long m68k_irq_vector_0
|
|
.long m68k_irq_vector_1
|
|
.long m68k_irq_vector_2
|
|
.long m68k_irq_vector_3
|
|
.long m68k_irq_vector_4
|
|
.long m68k_irq_vector_5
|
|
.long m68k_irq_vector_6
|
|
.long m68k_irq_vector_7
|
|
.org 4*256
|
|
END_DATA(exc_vectors)
|
|
|