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target-arm: Rename ARM_FEATURE_DIV to _THUMB_DIV

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Rename the ARM_FEATURE_DIV feature bit to _THUMB_DIV, to
make room for a new feature switch enabling DIV in the ARM
encoding. (Cores may implement either (a) no divide insns
(b) divide insns in Thumb encodings only (c) divide insns
in both ARM and Thumb encodings.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2011-10-19 16:14:06 +00:00
parent 41e9564df6
commit 477899908f
3 changed files with 5 additions and 4 deletions
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3
target-arm/translate.c
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@ -8513,8 +8513,9 @@ static int disas_thumb2_insn(CPUState *env, DisasContext *s, uint16_t insn_hw1)
tmp2 = load_reg(s, rm);
if ((op & 0x50) == 0x10) {
/* sdiv, udiv */
if (!arm_feature(env, ARM_FEATURE_DIV))
if (!arm_feature(env, ARM_FEATURE_THUMB_DIV)) {
goto illegal_op;
}
if (op & 0x20)
gen_helper_udiv(tmp, tmp, tmp2);
else