Correct the decoding of the ARM preload and memory hint space, by adding decoding of PLI, PLDW and the v7MP unallocated hint space. This commit also corrects a slightly overexuberant decoding of PLD(register) which was not checking that bit 4 was one.
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> --- target-arm/translate.c | 28 +++++++++++++++++++++++++--- 1 files changed, 25 insertions(+), 3 deletions(-) diff --git a/target-arm/translate.c b/target-arm/translate.c index d95133f..b742394 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -6102,9 +6102,31 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) goto illegal_op; return; } - if ((insn & 0x0d70f000) == 0x0550f000) - return; /* PLD */ - else if ((insn & 0x0ffffdff) == 0x01010000) { + if (((insn & 0x0f30f000) == 0x0510f000) || + ((insn & 0x0f30f010) == 0x0710f000)) { + if ((insn & (1 << 22)) == 0) { + /* PLDW; v7MP */ + if (!arm_feature(env, ARM_FEATURE_V7MP)) { + goto illegal_op; + } + } + /* Otherwise PLD; v5TE+ */ + return; + } + if (((insn & 0x0f70f000) == 0x0450f000) || + ((insn & 0x0f70f010) == 0x0650f000)) { + ARCH(7); + return; /* PLI; V7 */ + } + if (((insn & 0x0f700000) == 0x04100000) || + ((insn & 0x0f700010) == 0x06100000)) { + if (!arm_feature(env, ARM_FEATURE_V7MP)) { + goto illegal_op; + } + return; /* v7MP: Unallocated memory hint: must NOP */ + } + + if ((insn & 0x0ffffdff) == 0x01010000) { ARCH(6); /* setend */ if (insn & (1 << 9)) { -- 1.7.1