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target/arm: Define syndrome function for MOPS exceptions

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The FEAT_MOPS memory operations can raise a Memory Copy or Memory Set
exception if a copy or set instruction is executed when the CPU
register state is not correct for that instruction. Define the
usual syn_* function that constructs the syndrome register value
for these exceptions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-5-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2023-09-12 15:04:26 +01:00
parent 81466e4bad
commit 31aaaddecb
1 changed files with 12 additions and 0 deletions
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12
target/arm/syndrome.h
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@ -58,6 +58,7 @@ enum arm_exception_class {
EC_DATAABORT = 0x24,
EC_DATAABORT_SAME_EL = 0x25,
EC_SPALIGNMENT = 0x26,
EC_MOP = 0x27,
EC_AA32_FPTRAP = 0x28,
EC_AA64_FPTRAP = 0x2c,
EC_SERROR = 0x2f,
@ -334,4 +335,15 @@ static inline uint32_t syn_serror(uint32_t extra)
return (EC_SERROR << ARM_EL_EC_SHIFT) | ARM_EL_IL | extra;
}
static inline uint32_t syn_mop(bool is_set, bool is_setg, int options,
bool epilogue, bool wrong_option, bool option_a,
int destreg, int srcreg, int sizereg)
{
return (EC_MOP << ARM_EL_EC_SHIFT) | ARM_EL_IL |
(is_set << 24) | (is_setg << 23) | (options << 19) |
(epilogue << 18) | (wrong_option << 17) | (option_a << 16) |
(destreg << 10) | (srcreg << 5) | sizereg;
}
#endif /* TARGET_ARM_SYNDROME_H */