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/*
 * linux/arch/arm/lib/floppydma.S
 *
 * Copyright (C) 1995, 1996 Russell King
 */
 
#include 
                .text
 
                .global _floppy_fiqin_start
                .global _floppy_fiqin_end
_floppy_fiqin_start:
                subs    r9, r9, #1
                ldrgtb  r12, [r11, #-4]
                ldrleb  r12, [r11], #0
                strb    r12, [r10], #1
                subs    pc, lr, #4
_floppy_fiqin_end:
 
                .global _floppy_fiqout_start
                .global _floppy_fiqout_end
_floppy_fiqout_start:
                subs    r9, r9, #1
                ldrgeb  r12, [r10], #1
                movlt   r12, #0
                strleb  r12, [r11], #0
                subles  pc, lr, #4
                strb    r12, [r11, #-4]
                subs    pc, lr, #4
_floppy_fiqout_end:
 
@ Params:
@ r0 = length
@ r1 = address
@ r2 = floppy port
@ Puts these into R9_fiq, R10_fiq, R11_fiq
                .global _floppy_fiqsetup
_floppy_fiqsetup:
                mov     ip, sp
                stmfd   sp!, {fp, ip, lr, pc}
                sub     fp, ip, #4
                MODE(r3,ip,I_BIT|F_BIT|DEFAULT_FIQ)     @ disable FIQs, IRQs, FIQ mode
                mov     r0, r0
                mov     r9, r0
                mov     r10, r1
                mov     r11, r2
                RESTOREMODE(r3)                         @ back to normal
                mov     r0, r0
                LOADREGS(ea,fp,{fp, sp, pc})
 
                .global _floppy_fiqresidual
_floppy_fiqresidual:
                mov     ip, sp
                stmfd   sp!, {fp, ip, lr, pc}
                sub     fp, ip, #4
                MODE(r3,ip,I_BIT|F_BIT|DEFAULT_FIQ)     @ disable FIQs, IRQs, FIQ mode
                mov     r0, r0
                mov     r0, r9
                RESTOREMODE(r3)
                mov     r0, r0
                LOADREGS(ea,fp,{fp, sp, pc})

Line No.	Rev	Author	Line
1	199	simons	`/*`
2			`* linux/arch/arm/lib/floppydma.S`
3			`*`
4			`* Copyright (C) 1995, 1996 Russell King`
5			`*/`
6
7			`#include`
8			`.text`
9
10			`.global _floppy_fiqin_start`
11			`.global _floppy_fiqin_end`
12			`_floppy_fiqin_start:`
13			`subs r9, r9, #1`
14			`ldrgtb r12, [r11, #-4]`
15			`ldrleb r12, [r11], #0`
16			`strb r12, [r10], #1`
17			`subs pc, lr, #4`
18			`_floppy_fiqin_end:`
19
20			`.global _floppy_fiqout_start`
21			`.global _floppy_fiqout_end`
22			`_floppy_fiqout_start:`
23			`subs r9, r9, #1`
24			`ldrgeb r12, [r10], #1`
25			`movlt r12, #0`
26			`strleb r12, [r11], #0`
27			`subles pc, lr, #4`
28			`strb r12, [r11, #-4]`
29			`subs pc, lr, #4`
30			`_floppy_fiqout_end:`
31
32			`@ Params:`
33			`@ r0 = length`
34			`@ r1 = address`
35			`@ r2 = floppy port`
36			`@ Puts these into R9_fiq, R10_fiq, R11_fiq`
37			`.global _floppy_fiqsetup`
38			`_floppy_fiqsetup:`
39			`mov ip, sp`
40			`stmfd sp!, {fp, ip, lr, pc}`
41			`sub fp, ip, #4`
42			`MODE(r3,ip,I_BIT\|F_BIT\|DEFAULT_FIQ) @ disable FIQs, IRQs, FIQ mode`
43			`mov r0, r0`
44			`mov r9, r0`
45			`mov r10, r1`
46			`mov r11, r2`
47			`RESTOREMODE(r3) @ back to normal`
48			`mov r0, r0`
49			`LOADREGS(ea,fp,{fp, sp, pc})`
50
51			`.global _floppy_fiqresidual`
52			`_floppy_fiqresidual:`
53			`mov ip, sp`
54			`stmfd sp!, {fp, ip, lr, pc}`
55			`sub fp, ip, #4`
56			`MODE(r3,ip,I_BIT\|F_BIT\|DEFAULT_FIQ) @ disable FIQs, IRQs, FIQ mode`
57			`mov r0, r0`
58			`mov r0, r9`
59			`RESTOREMODE(r3)`
60			`mov r0, r0`
61			`LOADREGS(ea,fp,{fp, sp, pc})`

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[/] [or1k/] [trunk/] [uclinux/] [uClinux-2.0.x/] [arch/] [armnommu/] [lib/] [floppydma.S] - Blame information for rev 1775