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Predeclared extension register names in AArch32 state

Table 3 shows the predeclared extension register names:

Table 3. Predeclared extension registers in AArch32 state

Register names

Meaning

Q0-Q15

Advanced SIMD quadword registers

D0-D31

Advanced SIMD doubleword registers, floating-point double-precision registers

S0-S31

Floating-point single-precision registers


You can write the register names either in upper case or lower case.

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