DECL_SC_REG        15 vm_exec.c      #define DECL_SC_REG(type, r, reg) register type reg_##r
DECL_SC_REG        18 vm_exec.c      #define DECL_SC_REG(type, r, reg) register type reg_##r __asm__("r" reg)
DECL_SC_REG        21 vm_exec.c      #define DECL_SC_REG(type, r, reg) register type reg_##r __asm__("e" reg)
DECL_SC_REG        24 vm_exec.c      #define DECL_SC_REG(type, r, reg) register type reg_##r