ref: 874cce9c8746da398c57e021ea6ee740ca71e1cb dir: /as/target/x86/rules.dat/
^reg8 AREG8 ^reg16 AREG16 ^imm8 AIMM8 ^imm16 AIMM16 ^imm32 AIMM32 ^imm64 AIMM64 ^\(n\) ADIRECT ^sym ASYM ^string ASTR