c2_3_1.dsp

dsp入门与实践一书的源代码

.entry   	idpm;
idpm: 	MR=MX0*MY0(UU);	
     	MR0=MR1,SR=LSHIFT MR0(LO);
     	MR1=MR2,SR=SR OR LSHIFT MR1(HI);
    	DM(I0,M0)=SR0; MR=MR+MX1*MY0(SU);
     	MR=MR+MX0*MY1(US);
     	MR0=MR1; SR=LSHIFT MR0(LO);
     	MR1=MR2; SR=SR OR LSHIFT MR1(HI);
     	DM(I0,M0)=MR0, MR=MR+MX1*MY1(SS);
     	SR=LSHIFT MR0(LO);
     	SR=SR OR LSHIFT MR2 BY 15(HI);
     	DM(I0,M0)=SR0;
     	DM(I0,M0)=SR1; 
     	RTS;
.ENDMOD