bswap_32
#define __be32_to_cpu(x) bswap_32(x)
#define __cpu_to_be32(x) bswap_32(x)
#define __le32_to_cpu(x) bswap_32(x)
#define __cpu_to_le32(x) bswap_32(x)
M.x86.R_EAX = bswap_32(M.x86.R_EAX);
M.x86.R_ECX = bswap_32(M.x86.R_ECX);
M.x86.R_EDX = bswap_32(M.x86.R_EDX);
M.x86.R_EBX = bswap_32(M.x86.R_EBX);
M.x86.R_ESP = bswap_32(M.x86.R_ESP);
M.x86.R_EBP = bswap_32(M.x86.R_EBP);
M.x86.R_ESI = bswap_32(M.x86.R_ESI);
M.x86.R_EDI = bswap_32(M.x86.R_EDI);