DIF_REG_R0
dbuf[0] = DIF_INSTR_RET(DIF_REG_R0); /* ret %r0 */
DIF_REG_R0, treg);
DIF_REG_R0, reg);
DIF_REG_R0, szreg);
instr = DIF_INSTR_PUSHTS(DIF_OP_PUSHTV, DIF_TYPE_CTF, DIF_REG_R0, dreg);
instr = DIF_INSTR_FMT(DIF_OP_SUB, DIF_REG_R0,
reg = DIF_REG_R0;
reg = DIF_REG_R0;
if (reg != DIF_REG_R0)
instr = DIF_INSTR_MOV(DIF_REG_R0, dnp->dn_reg);
instr = DIF_INSTR_MOV(dnp->dn_left->dn_reg, DIF_REG_R0);
instr = DIF_INSTR_MOV(DIF_REG_R0, dnp->dn_reg);
instr = DIF_INSTR_MOV(DIF_REG_R0, dnp->dn_reg);
instr = DIF_INSTR_MOV(DIF_REG_R0, dnp->dn_reg);
regs[DIF_REG_R0] = 0; /* %r0 is fixed at zero */