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Diffstat (limited to 'include/arm_mode_bits.h')
| -rw-r--r-- | include/arm_mode_bits.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/arm_mode_bits.h b/include/arm_mode_bits.h new file mode 100644 index 0000000000..bd9630fbe0 --- /dev/null +++ b/include/arm_mode_bits.h @@ -0,0 +1,46 @@ +/** + * @file + * + * @ingroup arm_gba + * + * @brief ARM status register mode bits. + */ + +/* + * RTEMS GBA BSP + * + * Copyright (c) 2004 Markku Puro <markku.puro@kopteri.net> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef __ARMMODEBITS_H +#define __ARMMODEBITS_H + +/*----------------------------------------------------------------------------- + * Definitions + ----------------------------------------------------------------------------*/ +#define Mode_USR 0x10 +#define Mode_FIQ 0x11 +#define Mode_IRQ 0x12 +#define Mode_SVC 0x13 +#define Mode_ABT 0x17 +#define Mode_ABORT 0x17 +#define Mode_UNDEF 0x1B +#define Mode_SYS 0x1F /**< only available on ARM Arch v4 */ +#define Mode_Bits 0x1F /**< mask for mode bits */ +#define ModePriv Mode_SVC /**< used supervisor mode */ + +#define I_Bit 0x80 +#define F_Bit 0x40 +#define Int_Bits 0xC0 + +#define Mode_SVC_MIRQ (Mode_SVC | I_Bit | F_Bit) +#define Mode_SVC_UIRQ (Mode_SVC) +#define Mode_IRQ_MIRQ (Mode_SVC | I_Bit | F_Bit) +#define Mode_IRQ_UIRQ (Mode_SVC) + +#endif /* __ARMMODEBITS_H */ + |