R2H 30 arch/x86/crypto/aes-x86_64-asm_64.S #define R2H %bh R2H 57 arch/x86/crypto/twofish-i586-asm_32.S #define R2H %ch R2H 54 arch/x86/crypto/twofish-x86_64-asm_64.S #define R2H %ch