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[/] [or1k/] [trunk/] [uclinux/] [uClinux-2.0.x/] [arch/] [armnommu/] [lib/] [irqs-acorn.S] - Blame information for rev 1765

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/*
 * linux/arch/arm/lib/irqs.S
 *
 * Copyright (C) 1995, 1996 Russell King. (rmk@ecs.soton.ac.uk)
 *
 * Interrupt wrappers - handles disabling & re-enabling interrupts
 *
 * Changes:
 *  09/02/1996  RMK     Stream-lined normal interrupt wrapper - now uses 78
 *                      cycles instead of 85 and 3 less instructions.
 *  08/09/1996  RMK     Changed spec - now does not allow for disable & enable
 *                      of the executing interrupt.
 *                      IRQ13 is special - it always is entered with IRQs disabled.
 *                      IRQ14 & 15 are special - the IRQ is disabled in IOC
 *                       but interrupts are enabled.  It is expected that the
 *                       interrupt routine will re-enable the relevent IRQ...
 */
 
#include 
 
@ IRQ stubs
 
@ IRQ stubs entered with:
@ r1 = IOC
@ r2 = IRQ number
@ return 0 for normal irq
 
                .text
#define BAD_IRQ(n, msk, reg)                            \
                .global _bad_IRQ##n##_interrupt         ;\
_bad_IRQ##n##_interrupt:                                ;\
                stmfd   sp!, {lr}                       ;\
                ldrb    r0, [r4, $reg]                  ;\
                bic     r0, r0, $msk                    ;\
                strb    r0, [r4, $reg]                  ;\
                bl      _bad_IRQ                        ;\
                mov     r0, $1                          ;\
                LOADREGS(fd, sp!, {pc})
 
BAD_IRQ( 0, 0x01, 0x18)
BAD_IRQ( 1, 0x02, 0x18)
BAD_IRQ( 2, 0x04, 0x18)
BAD_IRQ( 3, 0x08, 0x18)
BAD_IRQ( 4, 0x10, 0x18)
BAD_IRQ( 5, 0x20, 0x18)
BAD_IRQ( 6, 0x40, 0x18)
BAD_IRQ( 7, 0x80, 0x18)
BAD_IRQ( 8, 0x01, 0x28)
BAD_IRQ( 9, 0x02, 0x28)
BAD_IRQ(10, 0x04, 0x28)
BAD_IRQ(11, 0x08, 0x28)
BAD_IRQ(12, 0x10, 0x28)
BAD_IRQ(13, 0x20, 0x28)
BAD_IRQ(14, 0x40, 0x28)
BAD_IRQ(15, 0x80, 0x28)
BAD_IRQ(16, 0x01, 0x1f8)
BAD_IRQ(17, 0x02, 0x1f8)
BAD_IRQ(18, 0x04, 0x1f8)
BAD_IRQ(19, 0x08, 0x1f8)
BAD_IRQ(20, 0x10, 0x1f8)
BAD_IRQ(21, 0x20, 0x1f8)
BAD_IRQ(22, 0x40, 0x1f8)
BAD_IRQ(23, 0x80, 0x1f8)
 
#define FAST_IRQ8(n)                                    \
                .globl  _fast_IRQ##n##_interrupt        ;\
_fast_IRQ##n##_interrupt:                               ;\
                mov     r9, lr                          ;\
                ldrb    r2, [r4, $0x18]                 ;\
                bic     r2, r2, $1 << n                 ;\
                strb    r2, [r4, $0x18]                 ;\
                mov     r6, $1 << n                     ;\
                strb    r6, [r4, $0x14]                 ;\
                ldr     r5, LC1                         ;\
                ldr     r7, [r5]                        ;\
                add     r2, r7, $1                      ;\
                str     r2, [r5]                        ;\
                bl      _do_fast_IRQ                    ;\
                DISABLEIRQS(r0)                         ;\
                str     r7, [r5]                        ;\
                ldrb    r0, [r4, $0x18]                 ;\
                orr     r0, r0, $1 << n                 ;\
                strb    r0, [r4, $0x18]                 ;\
                mov     r0, $1                          ;\
                RETINSTR(mov,pc,r9)
 
#define FAST_IRQ16(n)                                   \
                .globl  _fast_IRQ##n##_interrupt        ;\
_fast_IRQ##n##_interrupt:                               ;\
                mov     r9, lr                          ;\
                ldrb    r2, [r4, $0x28]                 ;\
                bic     r2, r2, $1 << (n - 8)           ;\
                strb    r2, [r4, $0x28]                 ;\
                ldr     r5, LC1                         ;\
                ldr     r7, [r5]                        ;\
                add     r2, r7, $1                      ;\
                str     r2, [r5]                        ;\
                bl      _do_fast_IRQ                    ;\
                DISABLEIRQS(r0)                         ;\
                str     r7, [r5]                        ;\
                ldrb    r0, [r4, $0x28]                 ;\
                orr     r0, r0, $1 << (n - 8)           ;\
                strb    r0, [r4, $0x28]                 ;\
                mov     r0, $1                          ;\
                RETINSTR(mov,pc,r9)
 
#define FAST_IRQ24(n)                                   \
                .globl  _fast_IRQ##n##_interrupt        ;\
_fast_IRQ##n##_interrupt:                               ;\
                mov     r9, lr                          ;\
                ldrb    r2, [r4, $0x1f8]                ;\
                bic     r2, r2, $1 << (n - 16)          ;\
                strb    r2, [r4, $0x1f8]                ;\
                ldr     r5, LC1                         ;\
                ldr     r7, [r5]                        ;\
                add     r2, r7, $1                      ;\
                str     r2, [r5]                        ;\
                bl      _do_fast_IRQ                    ;\
                DISABLEIRQS(r0)                         ;\
                str     r7, [r5]                        ;\
                ldrb    r0, [r4, $0x1f8]                ;\
                orr     r0, r0, $1 << (n - 16)          ;\
                strb    r0, [r4, $0x1f8]                ;\
                mov     r0, $1                          ;\
                RETINSTR(mov,pc,r9)
 
FAST_IRQ8 ( 0)
FAST_IRQ8 ( 1)
FAST_IRQ8 ( 2)
FAST_IRQ8 ( 3)
FAST_IRQ8 ( 4)
FAST_IRQ8 ( 5)
FAST_IRQ8 ( 6)
FAST_IRQ8 ( 7)
FAST_IRQ16( 8)
FAST_IRQ16( 9)
FAST_IRQ16(10)
FAST_IRQ16(11)
FAST_IRQ16(12)
 
LC1:            .word   _intr_count
 
                .globl  _fast_IRQ13_interrupt
_fast_IRQ13_interrupt:
                mov     r9, lr
                ldr     r5, LC1
                ldr     r7, [r5]
                add     r2, r7, #1
                str     r2, [r5]
                bl      _do_fast_IRQ
                str     r7, [r5]
                mov     r0, #1
                RETINSTR(mov,pc,r9)
 
                .globl  _fast_IRQ14_interrupt
_fast_IRQ14_interrupt:
                mov     r9, lr
                ldrb    r2, [r4, #0x28]
                bic     r2, r2, #1 << 6
                strb    r2, [r4, #0x28]
                ldr     r5, LC1
                ldr     r7, [r5]
                add     r2, r7, #1
                str     r2, [r5]
                bl      _do_fast_IRQ
                str     r7, [r5]
                mov     r0, #1
                RETINSTR(mov,pc,r9)
 
FAST_IRQ16(15)
FAST_IRQ24(16)
FAST_IRQ24(17)
FAST_IRQ24(18)
FAST_IRQ24(19)
FAST_IRQ24(20)
FAST_IRQ24(21)
FAST_IRQ24(22)
FAST_IRQ24(23)
 
#define NORM_IRQ8(n)                                    \
                .global _IRQ##n##_interrupt             ;\
_IRQ##n##_interrupt:                                    ;\
                mov     r9, lr                          ;\
                ldrb    r2, [r4, $0x18]                 ;\
                bic     r2, r2, $1 << n                 ;\
                strb    r2, [r4, $0x18]                 ;\
                mov     r6, $1 << n                     ;\
                strb    r6, [r4, $0x14]                 ;\
                ldr     r5, LC2                         ;\
                ldr     r7, [r5]                        ;\
                add     r2, r7, $1                      ;\
                str     r2, [r5]                        ;\
                ENABLEIRQS(r2)                          ;\
                bl      _do_IRQ                         ;\
                DISABLEIRQS(r0)                         ;\
                str     r7, [r5]                        ;\
                ldrb    r0, [r4, $0x18]                 ;\
                orr     r0, r0, $1 << n                 ;\
                strb    r0, [r4, $0x18]                 ;\
                mov     r0, $0                          ;\
                RETINSTR(mov,pc,r9)
 
#define NORM_IRQ16(n)                                   \
                .global _IRQ##n##_interrupt             ;\
_IRQ##n##_interrupt:                                    ;\
                mov     r9, lr                          ;\
                ldrb    r2, [r4, $0x28]                 ;\
                bic     r2, r2, $1 << (n - 8)           ;\
                strb    r2, [r4, $0x28]                 ;\
                ldr     r5, LC2                         ;\
                ldr     r7, [r5]                        ;\
                add     r2, r7, $1                      ;\
                str     r2, [r5]                        ;\
                ENABLEIRQS(r2)                          ;\
                bl      _do_IRQ                         ;\
                DISABLEIRQS(r2)                         ;\
                str     r7, [r5]                        ;\
                ldrb    r0, [r4, $0x28]                 ;\
                orr     r0, r0, $1 << (n - 8)           ;\
                strb    r0, [r4, $0x28]                 ;\
                mov     r0, $0                          ;\
                RETINSTR(mov,pc,r9)
 
#define NORM_IRQ24(n)                                   \
                .globl  _IRQ##n##_interrupt             ;\
_IRQ##n##_interrupt:                                    ;\
                mov     r9, lr                          ;\
                ldrb    r2, [r4, $0x1f8]                ;\
                bic     r2, r2, $1 << (n - 16)          ;\
                strb    r2, [r4, $0x1f8]                ;\
                ldr     r5, LC2                         ;\
                ldr     r7, [r5]                        ;\
                add     r2, r7, $1                      ;\
                str     r2, [r5]                        ;\
                ENABLEIRQS(r2)                          ;\
                bl      _do_IRQ                         ;\
                DISABLEIRQS(r2)                         ;\
                str     r7, [r5]                        ;\
                ldrb    r0, [r4, $0x1f8]                ;\
                orr     r0, r0, $1 << (n - 16)          ;\
                strb    r0, [r4, $0x1f8]                ;\
                mov     r0, $0                          ;\
                RETINSTR(mov,pc,r9)
 
NORM_IRQ8 ( 0)
NORM_IRQ8 ( 1)
NORM_IRQ8 ( 2)
NORM_IRQ8 ( 3)
NORM_IRQ8 ( 4)
 
                .globl  _timer_IRQ_interrupt
_timer_IRQ_interrupt:
                mov     r9, lr
                ldrb    r2, [r4, #0x18]
                bic     r2, r2, #1 << 5
                strb    r2, [r4, #0x18]
                mov     r2, #1 << 5
                strb    r2, [r4, #0x14]
                ldr     r5, LC1
                ldr     r7, [r5]
                add     r2, r7, #1
                str     r2, [r5]
                bl      _do_IRQ
                str     r7, [r5]
                ldrb    r2, [r4, #0x18]
                orr     r2, r2, #1 << 5
                strb    r2, [r4, #0x18]
                mov     r0, #0
                RETINSTR(mov,pc,r9)
 
NORM_IRQ8 ( 6)
NORM_IRQ8 ( 7)
NORM_IRQ16( 8)
NORM_IRQ16( 9)
NORM_IRQ16(10)
NORM_IRQ16(11)
NORM_IRQ16(12)
 
LC2:            .word   _intr_count
 
                .globl  _IRQ13_interrupt
_IRQ13_interrupt:
                mov     r9, lr
                ldr     r5, LC2
                ldr     r7, [r5]
                add     r2, r7, #1
                str     r2, [r5]
                bl      _do_IRQ
                str     r7, [r5]
                mov     r0, #0
                RETINSTR(mov,pc,r9)
 
                .globl  _IRQ14_interrupt
_IRQ14_interrupt:
                mov     r9, lr
                ldrb    r2, [r4, #0x28]
                bic     r2, r2, #1 << 6
                strb    r2, [r4, #0x28]
                ldr     r5, LC2
                ldr     r7, [r5]
                add     r2, r7, #1
                str     r2, [r5]
                bl      _do_IRQ
                str     r7, [r5]
                mov     r0, #0
                RETINSTR(mov,pc,r9)
 
NORM_IRQ16(15)
NORM_IRQ24(16)
NORM_IRQ24(17)
NORM_IRQ24(18)
NORM_IRQ24(19)
NORM_IRQ24(20)
NORM_IRQ24(21)
NORM_IRQ24(22)
NORM_IRQ24(23)
 
#define PROBE_IRQ8(n, v1)                               \
                .global _probe_IRQ##n##_interrupt       ;\
_probe_IRQ##n##_interrupt:                              ;\
                ldrb    r0, [r4, $0x18]                 ;\
                bic     r0, r0, $ v1                    ;\
                strb    r0, [r4, $0x18]                 ;\
                mov     r0, $ v1                        ;\
                strb    r0, [r4, $0x14]                 ;\
                mov     r0, $1                          ;\
                RETINSTR(mov,pc,lr)
 
#define PROBE_IRQ16(n, v1)                              \
                .global _probe_IRQ##n##_interrupt       ;\
_probe_IRQ##n##_interrupt:                              ;\
                ldrb    r0, [r4, $0x28]                 ;\
                bic     r0, r0, $ v1                    ;\
                strb    r0, [r4, $0x28]                 ;\
                mov     r0, $1                          ;\
                RETINSTR(mov,pc,lr)
 
#define PROBE_IRQ24(n, v1)                              \
                .global _probe_IRQ##n##_interrupt       ;\
_probe_IRQ##n##_interrupt:                              ;\
                ldrb    r0, [r4, $0x1f8]                ;\
                bic     r0, r0, $ v1                    ;\
                strb    r0, [r4, $0x1f8]                ;\
                mov     r0, $1                          ;\
                RETINSTR(mov,pc,lr)
 
PROBE_IRQ8 ( 0,   1)
PROBE_IRQ8 ( 1,   2)
PROBE_IRQ8 ( 2,   4)
PROBE_IRQ8 ( 3,   8)
PROBE_IRQ8 ( 4,  16)
PROBE_IRQ8 ( 5,  32)
PROBE_IRQ8 ( 6,  64)
PROBE_IRQ8 ( 7, 128)
PROBE_IRQ16( 8,   1)
PROBE_IRQ16( 9,   2)
PROBE_IRQ16(10,   4)
PROBE_IRQ16(11,   8)
PROBE_IRQ16(12,  16)
PROBE_IRQ16(13,  32)
PROBE_IRQ16(14,  64)
PROBE_IRQ16(15, 128)
PROBE_IRQ24(16,   1)
PROBE_IRQ24(17,   2)
PROBE_IRQ24(18,   4)
PROBE_IRQ24(19,   8)
PROBE_IRQ24(20,  16)
PROBE_IRQ24(21,  32)
PROBE_IRQ24(22,  64)
PROBE_IRQ24(23, 128)
 
                .global _bad_IRQ
_bad_IRQ:       adr     r0, Lmsg
                mov     r1, r2
                b       _printk
 
Lmsg:           .ascii  "Bad interrupt %d received!\n\0"
                .align

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[/] [or1k/] [trunk/] [uclinux/] [uClinux-2.0.x/] [arch/] [armnommu/] [lib/] [irqs-acorn.S] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	199	simons	`/*`
2			`* linux/arch/arm/lib/irqs.S`
3			`*`
4			`* Copyright (C) 1995, 1996 Russell King. (rmk@ecs.soton.ac.uk)`
5			`*`
6			`* Interrupt wrappers - handles disabling & re-enabling interrupts`
7			`*`
8			`* Changes:`
9			`* 09/02/1996 RMK Stream-lined normal interrupt wrapper - now uses 78`
10			`* cycles instead of 85 and 3 less instructions.`
11			`* 08/09/1996 RMK Changed spec - now does not allow for disable & enable`
12			`* of the executing interrupt.`
13			`* IRQ13 is special - it always is entered with IRQs disabled.`
14			`* IRQ14 & 15 are special - the IRQ is disabled in IOC`
15			`* but interrupts are enabled. It is expected that the`
16			`* interrupt routine will re-enable the relevent IRQ...`
17			`*/`
18
19			`#include`
20
21			`@ IRQ stubs`
22
23			`@ IRQ stubs entered with:`
24			`@ r1 = IOC`
25			`@ r2 = IRQ number`
26			`@ return 0 for normal irq`
27
28			`.text`
29			`#define BAD_IRQ(n, msk, reg) \`
30			`.global _bad_IRQ##n##_interrupt ;\`
31			`_bad_IRQ##n##_interrupt: ;\`
32			`stmfd sp!, {lr} ;\`
33			`ldrb r0, [r4, $reg] ;\`
34			`bic r0, r0, $msk ;\`
35			`strb r0, [r4, $reg] ;\`
36			`bl _bad_IRQ ;\`
37			`mov r0, $1 ;\`
38			`LOADREGS(fd, sp!, {pc})`
39
40			`BAD_IRQ( 0, 0x01, 0x18)`
41			`BAD_IRQ( 1, 0x02, 0x18)`
42			`BAD_IRQ( 2, 0x04, 0x18)`
43			`BAD_IRQ( 3, 0x08, 0x18)`
44			`BAD_IRQ( 4, 0x10, 0x18)`
45			`BAD_IRQ( 5, 0x20, 0x18)`
46			`BAD_IRQ( 6, 0x40, 0x18)`
47			`BAD_IRQ( 7, 0x80, 0x18)`
48			`BAD_IRQ( 8, 0x01, 0x28)`
49			`BAD_IRQ( 9, 0x02, 0x28)`
50			`BAD_IRQ(10, 0x04, 0x28)`
51			`BAD_IRQ(11, 0x08, 0x28)`
52			`BAD_IRQ(12, 0x10, 0x28)`
53			`BAD_IRQ(13, 0x20, 0x28)`
54			`BAD_IRQ(14, 0x40, 0x28)`
55			`BAD_IRQ(15, 0x80, 0x28)`
56			`BAD_IRQ(16, 0x01, 0x1f8)`
57			`BAD_IRQ(17, 0x02, 0x1f8)`
58			`BAD_IRQ(18, 0x04, 0x1f8)`
59			`BAD_IRQ(19, 0x08, 0x1f8)`
60			`BAD_IRQ(20, 0x10, 0x1f8)`
61			`BAD_IRQ(21, 0x20, 0x1f8)`
62			`BAD_IRQ(22, 0x40, 0x1f8)`
63			`BAD_IRQ(23, 0x80, 0x1f8)`
64
65			`#define FAST_IRQ8(n) \`
66			`.globl _fast_IRQ##n##_interrupt ;\`
67			`_fast_IRQ##n##_interrupt: ;\`
68			`mov r9, lr ;\`
69			`ldrb r2, [r4, $0x18] ;\`
70			`bic r2, r2, $1 << n ;\`
71			`strb r2, [r4, $0x18] ;\`
72			`mov r6, $1 << n ;\`
73			`strb r6, [r4, $0x14] ;\`
74			`ldr r5, LC1 ;\`
75			`ldr r7, [r5] ;\`
76			`add r2, r7, $1 ;\`
77			`str r2, [r5] ;\`
78			`bl _do_fast_IRQ ;\`
79			`DISABLEIRQS(r0) ;\`
80			`str r7, [r5] ;\`
81			`ldrb r0, [r4, $0x18] ;\`
82			`orr r0, r0, $1 << n ;\`
83			`strb r0, [r4, $0x18] ;\`
84			`mov r0, $1 ;\`
85			`RETINSTR(mov,pc,r9)`
86
87			`#define FAST_IRQ16(n) \`
88			`.globl _fast_IRQ##n##_interrupt ;\`
89			`_fast_IRQ##n##_interrupt: ;\`
90			`mov r9, lr ;\`
91			`ldrb r2, [r4, $0x28] ;\`
92			`bic r2, r2, $1 << (n - 8) ;\`
93			`strb r2, [r4, $0x28] ;\`
94			`ldr r5, LC1 ;\`
95			`ldr r7, [r5] ;\`
96			`add r2, r7, $1 ;\`
97			`str r2, [r5] ;\`
98			`bl _do_fast_IRQ ;\`
99			`DISABLEIRQS(r0) ;\`
100			`str r7, [r5] ;\`
101			`ldrb r0, [r4, $0x28] ;\`
102			`orr r0, r0, $1 << (n - 8) ;\`
103			`strb r0, [r4, $0x28] ;\`
104			`mov r0, $1 ;\`
105			`RETINSTR(mov,pc,r9)`
106
107			`#define FAST_IRQ24(n) \`
108			`.globl _fast_IRQ##n##_interrupt ;\`
109			`_fast_IRQ##n##_interrupt: ;\`
110			`mov r9, lr ;\`
111			`ldrb r2, [r4, $0x1f8] ;\`
112			`bic r2, r2, $1 << (n - 16) ;\`
113			`strb r2, [r4, $0x1f8] ;\`
114			`ldr r5, LC1 ;\`
115			`ldr r7, [r5] ;\`
116			`add r2, r7, $1 ;\`
117			`str r2, [r5] ;\`
118			`bl _do_fast_IRQ ;\`
119			`DISABLEIRQS(r0) ;\`
120			`str r7, [r5] ;\`
121			`ldrb r0, [r4, $0x1f8] ;\`
122			`orr r0, r0, $1 << (n - 16) ;\`
123			`strb r0, [r4, $0x1f8] ;\`
124			`mov r0, $1 ;\`
125			`RETINSTR(mov,pc,r9)`
126
127			`FAST_IRQ8 ( 0)`
128			`FAST_IRQ8 ( 1)`
129			`FAST_IRQ8 ( 2)`
130			`FAST_IRQ8 ( 3)`
131			`FAST_IRQ8 ( 4)`
132			`FAST_IRQ8 ( 5)`
133			`FAST_IRQ8 ( 6)`
134			`FAST_IRQ8 ( 7)`
135			`FAST_IRQ16( 8)`
136			`FAST_IRQ16( 9)`
137			`FAST_IRQ16(10)`
138			`FAST_IRQ16(11)`
139			`FAST_IRQ16(12)`
140
141			`LC1: .word _intr_count`
142
143			`.globl _fast_IRQ13_interrupt`
144			`_fast_IRQ13_interrupt:`
145			`mov r9, lr`
146			`ldr r5, LC1`
147			`ldr r7, [r5]`
148			`add r2, r7, #1`
149			`str r2, [r5]`
150			`bl _do_fast_IRQ`
151			`str r7, [r5]`
152			`mov r0, #1`
153			`RETINSTR(mov,pc,r9)`
154
155			`.globl _fast_IRQ14_interrupt`
156			`_fast_IRQ14_interrupt:`
157			`mov r9, lr`
158			`ldrb r2, [r4, #0x28]`
159			`bic r2, r2, #1 << 6`
160			`strb r2, [r4, #0x28]`
161			`ldr r5, LC1`
162			`ldr r7, [r5]`
163			`add r2, r7, #1`
164			`str r2, [r5]`
165			`bl _do_fast_IRQ`
166			`str r7, [r5]`
167			`mov r0, #1`
168			`RETINSTR(mov,pc,r9)`
169
170			`FAST_IRQ16(15)`
171			`FAST_IRQ24(16)`
172			`FAST_IRQ24(17)`
173			`FAST_IRQ24(18)`
174			`FAST_IRQ24(19)`
175			`FAST_IRQ24(20)`
176			`FAST_IRQ24(21)`
177			`FAST_IRQ24(22)`
178			`FAST_IRQ24(23)`
179
180			`#define NORM_IRQ8(n) \`
181			`.global _IRQ##n##_interrupt ;\`
182			`_IRQ##n##_interrupt: ;\`
183			`mov r9, lr ;\`
184			`ldrb r2, [r4, $0x18] ;\`
185			`bic r2, r2, $1 << n ;\`
186			`strb r2, [r4, $0x18] ;\`
187			`mov r6, $1 << n ;\`
188			`strb r6, [r4, $0x14] ;\`
189			`ldr r5, LC2 ;\`
190			`ldr r7, [r5] ;\`
191			`add r2, r7, $1 ;\`
192			`str r2, [r5] ;\`
193			`ENABLEIRQS(r2) ;\`
194			`bl _do_IRQ ;\`
195			`DISABLEIRQS(r0) ;\`
196			`str r7, [r5] ;\`
197			`ldrb r0, [r4, $0x18] ;\`
198			`orr r0, r0, $1 << n ;\`
199			`strb r0, [r4, $0x18] ;\`
200			`mov r0, $0 ;\`
201			`RETINSTR(mov,pc,r9)`
202
203			`#define NORM_IRQ16(n) \`
204			`.global _IRQ##n##_interrupt ;\`
205			`_IRQ##n##_interrupt: ;\`
206			`mov r9, lr ;\`
207			`ldrb r2, [r4, $0x28] ;\`
208			`bic r2, r2, $1 << (n - 8) ;\`
209			`strb r2, [r4, $0x28] ;\`
210			`ldr r5, LC2 ;\`
211			`ldr r7, [r5] ;\`
212			`add r2, r7, $1 ;\`
213			`str r2, [r5] ;\`
214			`ENABLEIRQS(r2) ;\`
215			`bl _do_IRQ ;\`
216			`DISABLEIRQS(r2) ;\`
217			`str r7, [r5] ;\`
218			`ldrb r0, [r4, $0x28] ;\`
219			`orr r0, r0, $1 << (n - 8) ;\`
220			`strb r0, [r4, $0x28] ;\`
221			`mov r0, $0 ;\`
222			`RETINSTR(mov,pc,r9)`
223
224			`#define NORM_IRQ24(n) \`
225			`.globl _IRQ##n##_interrupt ;\`
226			`_IRQ##n##_interrupt: ;\`
227			`mov r9, lr ;\`
228			`ldrb r2, [r4, $0x1f8] ;\`
229			`bic r2, r2, $1 << (n - 16) ;\`
230			`strb r2, [r4, $0x1f8] ;\`
231			`ldr r5, LC2 ;\`
232			`ldr r7, [r5] ;\`
233			`add r2, r7, $1 ;\`
234			`str r2, [r5] ;\`
235			`ENABLEIRQS(r2) ;\`
236			`bl _do_IRQ ;\`
237			`DISABLEIRQS(r2) ;\`
238			`str r7, [r5] ;\`
239			`ldrb r0, [r4, $0x1f8] ;\`
240			`orr r0, r0, $1 << (n - 16) ;\`
241			`strb r0, [r4, $0x1f8] ;\`
242			`mov r0, $0 ;\`
243			`RETINSTR(mov,pc,r9)`
244
245			`NORM_IRQ8 ( 0)`
246			`NORM_IRQ8 ( 1)`
247			`NORM_IRQ8 ( 2)`
248			`NORM_IRQ8 ( 3)`
249			`NORM_IRQ8 ( 4)`
250
251			`.globl _timer_IRQ_interrupt`
252			`_timer_IRQ_interrupt:`
253			`mov r9, lr`
254			`ldrb r2, [r4, #0x18]`
255			`bic r2, r2, #1 << 5`
256			`strb r2, [r4, #0x18]`
257			`mov r2, #1 << 5`
258			`strb r2, [r4, #0x14]`
259			`ldr r5, LC1`
260			`ldr r7, [r5]`
261			`add r2, r7, #1`
262			`str r2, [r5]`
263			`bl _do_IRQ`
264			`str r7, [r5]`
265			`ldrb r2, [r4, #0x18]`
266			`orr r2, r2, #1 << 5`
267			`strb r2, [r4, #0x18]`
268			`mov r0, #0`
269			`RETINSTR(mov,pc,r9)`
270
271			`NORM_IRQ8 ( 6)`
272			`NORM_IRQ8 ( 7)`
273			`NORM_IRQ16( 8)`
274			`NORM_IRQ16( 9)`
275			`NORM_IRQ16(10)`
276			`NORM_IRQ16(11)`
277			`NORM_IRQ16(12)`
278
279			`LC2: .word _intr_count`
280
281			`.globl _IRQ13_interrupt`
282			`_IRQ13_interrupt:`
283			`mov r9, lr`
284			`ldr r5, LC2`
285			`ldr r7, [r5]`
286			`add r2, r7, #1`
287			`str r2, [r5]`
288			`bl _do_IRQ`
289			`str r7, [r5]`
290			`mov r0, #0`
291			`RETINSTR(mov,pc,r9)`
292
293			`.globl _IRQ14_interrupt`
294			`_IRQ14_interrupt:`
295			`mov r9, lr`
296			`ldrb r2, [r4, #0x28]`
297			`bic r2, r2, #1 << 6`
298			`strb r2, [r4, #0x28]`
299			`ldr r5, LC2`
300			`ldr r7, [r5]`
301			`add r2, r7, #1`
302			`str r2, [r5]`
303			`bl _do_IRQ`
304			`str r7, [r5]`
305			`mov r0, #0`
306			`RETINSTR(mov,pc,r9)`
307
308			`NORM_IRQ16(15)`
309			`NORM_IRQ24(16)`
310			`NORM_IRQ24(17)`
311			`NORM_IRQ24(18)`
312			`NORM_IRQ24(19)`
313			`NORM_IRQ24(20)`
314			`NORM_IRQ24(21)`
315			`NORM_IRQ24(22)`
316			`NORM_IRQ24(23)`
317
318			`#define PROBE_IRQ8(n, v1) \`
319			`.global _probe_IRQ##n##_interrupt ;\`
320			`_probe_IRQ##n##_interrupt: ;\`
321			`ldrb r0, [r4, $0x18] ;\`
322			`bic r0, r0, $ v1 ;\`
323			`strb r0, [r4, $0x18] ;\`
324			`mov r0, $ v1 ;\`
325			`strb r0, [r4, $0x14] ;\`
326			`mov r0, $1 ;\`
327			`RETINSTR(mov,pc,lr)`
328
329			`#define PROBE_IRQ16(n, v1) \`
330			`.global _probe_IRQ##n##_interrupt ;\`
331			`_probe_IRQ##n##_interrupt: ;\`
332			`ldrb r0, [r4, $0x28] ;\`
333			`bic r0, r0, $ v1 ;\`
334			`strb r0, [r4, $0x28] ;\`
335			`mov r0, $1 ;\`
336			`RETINSTR(mov,pc,lr)`
337
338			`#define PROBE_IRQ24(n, v1) \`
339			`.global _probe_IRQ##n##_interrupt ;\`
340			`_probe_IRQ##n##_interrupt: ;\`
341			`ldrb r0, [r4, $0x1f8] ;\`
342			`bic r0, r0, $ v1 ;\`
343			`strb r0, [r4, $0x1f8] ;\`
344			`mov r0, $1 ;\`
345			`RETINSTR(mov,pc,lr)`
346
347			`PROBE_IRQ8 ( 0, 1)`
348			`PROBE_IRQ8 ( 1, 2)`
349			`PROBE_IRQ8 ( 2, 4)`
350			`PROBE_IRQ8 ( 3, 8)`
351			`PROBE_IRQ8 ( 4, 16)`
352			`PROBE_IRQ8 ( 5, 32)`
353			`PROBE_IRQ8 ( 6, 64)`
354			`PROBE_IRQ8 ( 7, 128)`
355			`PROBE_IRQ16( 8, 1)`
356			`PROBE_IRQ16( 9, 2)`
357			`PROBE_IRQ16(10, 4)`
358			`PROBE_IRQ16(11, 8)`
359			`PROBE_IRQ16(12, 16)`
360			`PROBE_IRQ16(13, 32)`
361			`PROBE_IRQ16(14, 64)`
362			`PROBE_IRQ16(15, 128)`
363			`PROBE_IRQ24(16, 1)`
364			`PROBE_IRQ24(17, 2)`
365			`PROBE_IRQ24(18, 4)`
366			`PROBE_IRQ24(19, 8)`
367			`PROBE_IRQ24(20, 16)`
368			`PROBE_IRQ24(21, 32)`
369			`PROBE_IRQ24(22, 64)`
370			`PROBE_IRQ24(23, 128)`
371
372			`.global _bad_IRQ`
373			`_bad_IRQ: adr r0, Lmsg`
374			`mov r1, r2`
375			`b _printk`
376
377			`Lmsg: .ascii "Bad interrupt %d received!\n\0"`
378			`.align`