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ARM: misc generic cleanup

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Remove an undesirable use of the CPSR symbol ... it needs to vanish.
Flag mode-to-number stuff as obsolete; say why ... should also vanish.

Get rid of no-longer-used mode and state typedefs.

Comment a few of the implicit ties to "classic ARM".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell
2009-12-04 20:14:46 -08:00
parent e51b9a4ac7
commit 340e2eb762
4 changed files with 28 additions and 13 deletions
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26
src/target/armv4_5.h
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@@ -30,8 +30,11 @@
#include <helper/command.h>
typedef enum arm_mode
{
/* These numbers match the five low bits of the *PSR registers on
* "classic ARM" processors, which build on the ARMv4 processor
* modes and register set.
*/
enum arm_mode {
ARM_MODE_USR = 16,
ARM_MODE_FIQ = 17,
ARM_MODE_IRQ = 18,
@@ -41,24 +44,29 @@ typedef enum arm_mode
ARM_MODE_UND = 27,
ARM_MODE_SYS = 31,
ARM_MODE_ANY = -1
} arm_mode_t;
};
const char *arm_mode_name(unsigned psr_mode);
bool is_arm_mode(unsigned psr_mode);
int arm_mode_to_number(enum arm_mode mode);
enum arm_mode armv4_5_number_to_mode(int number);
typedef enum arm_state
{
/* The PSR "T" and "J" bits define the mode of "classic ARM" cores */
enum arm_state {
ARM_STATE_ARM,
ARM_STATE_THUMB,
ARM_STATE_JAZELLE,
ARM_STATE_THUMB_EE,
} arm_state_t;
};
extern const char *arm_state_strings[];
/* OBSOLETE, DO NOT USE IN NEW CODE! The "number" of an arm_mode is an
* index into the armv4_5_core_reg_map array. Its remaining users are
* remnants which could as easily walk * the register cache directly as
* use the expensive ARMV4_5_CORE_REG_MODE() macro.
*/
int arm_mode_to_number(enum arm_mode mode);
enum arm_mode armv4_5_number_to_mode(int number);
extern const int armv4_5_core_reg_map[8][17];
#define ARMV4_5_CORE_REG_MODE(cache, mode, num) \