URDMSR

APX APX_F_USER_MSR x86_64

5 encoding forms.

X86_URDMSR_X86_LEGACY_0F38_F8_472148
r64, r64
X86_LEGACY F8 USER_MSR
XED_URDMSR_GPR64u64_GPR64u64
REG0=GPR64_B():w:q:u64 REG1=GPR64_R():r:q:u64 REG2=XED_REG_MSRS:r:SUPP
X86_LEGACY F8 /r USER_MSR
XED_URDMSR_GPR64u64_GPR64u64_APX
REG0=GPR64_B():w:q:u64 REG1=GPR64_R():r:q:u64 REG2=XED_REG_MSRS:r:SUPP
X86_LEGACY F8 /r APX_F_USER_MSR
XED_URDMSR_GPR64u64_IMM32
REG0=VGPR64_B():w:q:u64 IMM0:r:d REG1=XED_REG_MSRS:r:SUPP
X86_LEGACY F8 /0 USER_MSR
XED_URDMSR_GPR64u64_IMM32_APX
REG0=GPR64_B():w:q:u64 IMM0:r:d REG1=XED_REG_MSRS:r:SUPP
X86_LEGACY F8 /0 APX_F_USER_MSR