RBP                38 core/vm-arm.c  #define RBP(x) (0x18 + (x * sizeof(PN)))
RBP                37 core/vm-ppc.c  #define RBP(x) (0x18 + (x * sizeof(PN)))
RBP                17 core/vm-x86.c  #define RBP(x)   (0x100 - ((x + 1) * sizeof(PN)))