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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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11
src/target/arm_semihosting.c
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@@ -379,15 +379,22 @@ static int do_semihosting(struct target *target)
}
/* resume execution to the original mode */
/* return value in R0 */
buf_set_u32(armv4_5->core_cache->reg_list[0].value, 0, 32, result);
armv4_5->core_cache->reg_list[0].dirty = 1;
/* LR --> PC */
buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, lr);
armv4_5->core_cache->reg_list[15].dirty = 1;
buf_set_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32, spsr);
armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty = 1;
/* saved PSR --> current PSR */
buf_set_u32(armv4_5->cpsr->value, 0, 32, spsr);
armv4_5->cpsr->dirty = 1;
armv4_5->core_mode = spsr & 0x1f;
if (spsr & 0x20)
armv4_5->core_state = ARM_STATE_THUMB;
return target_resume(target, 1, 0, 0, 0);
}