2 * linux/arch/unicore32/include/asm/assembler.h
4 * Code specific to PKUnity SoC and UniCore ISA
6 * Copyright (C) 2001-2010 GUAN Xue-tao
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
12 * Do not include any C declarations in this file - it is included by
16 #error "Only include this from assembly code"
19 #include <asm/ptrace.h>
22 * Little Endian independent macros for shifting bytes within registers.
26 #define get_byte_0 << #0
27 #define get_byte_1 >> #8
28 #define get_byte_2 >> #16
29 #define get_byte_3 >> #24
30 #define put_byte_0 << #0
31 #define put_byte_1 << #8
32 #define put_byte_2 << #16
33 #define put_byte_3 << #24
41 * Enable and disable interrupts
43 .macro disable_irq, temp
45 andn \temp, \temp, #0xFF
46 or \temp, \temp, #PSR_I_BIT | PRIV_MODE
50 .macro enable_irq, temp
52 andn \temp, \temp, #0xFF
53 or \temp, \temp, #PRIV_MODE
59 .pushsection __ex_table, "a"; \
64 .macro notcond, cond, nexti = .+8
93 .else; .ifnc \cond, al
94 .error "Unknown cond in notcond macro argument"
95 .endif; .endif; .endif; .endif; .endif; .endif; .endif
96 .endif; .endif; .endif; .endif; .endif; .endif; .endif
100 .macro usracc, instr, reg, ptr, inc, cond, rept, abort
105 \instr\()b.u \reg, [\ptr], #\inc
107 \instr\()w.u \reg, [\ptr], #\inc
109 .error "Unsupported inc macro argument"
112 .pushsection __ex_table, "a"
119 .macro strusr, reg, ptr, inc, cond = al, rept = 1, abort = 9001f
120 usracc st, \reg, \ptr, \inc, \cond, \rept, \abort
123 .macro ldrusr, reg, ptr, inc, cond = al, rept = 1, abort = 9001f
124 usracc ld, \reg, \ptr, \inc, \cond, \rept, \abort