mirror of https://github.com/xemu-project/xemu.git
96fc80f5f1
Convert the VMLA, VMLS and VMUL insns in the Neon "2 registers and a scalar" group to decodetree. These are 32x32->32 operations where one of the inputs is the scalar, followed by a possible accumulate operation of the 32-bit result. The refactoring removes some of the oddities of the old decoder: * operands to the operation and accumulation were often reversed (taking advantage of the fact that most of these ops are commutative); the new code follows the pseudocode order * the Q bit in the insn was in a local variable 'u'; in the new code it is decoded into a->q Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> |
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