snd_burst_word.asm

GSM发送端普通突发复用部分的dsp程序

      .ref data_address
	  .ref data_out
      .ref training_data
      .ref training_type
	  .ref hub_type
	  .ref h1b_type
      .def snd_Burst_word


snd_Burst_word:
							
				AMOV   	#data_address, XAR0
      			AMOV   	#data_out, XAR1
      	        AMOV	#training_data,XAR2
      	        AMOV	#training_type,XAR3
      	        AMOV	#hub_type,XAR4
      	        AMOV	#h1b_type,XAR5
      	        
      	        
      	        ||RPT		#2				;前3个尾bit0
      	        MOV		#0,*AR1+
      	        ||RPT		#56				;57bit数据
      	        MOV		*AR0+,*AR1+
      	        
      	        MOV		*AR4,*AR1+		;根据hub_type加入第一个偷帧
      	        
      	        MOV	#26<<#16,AC0			;根据training_type判断应加入的训练序列
      	        MPYM	*AR3,AC0		;就是用t3乘以*AR3，存入AC0
      	        MOV		AC0,T0
      	        ADD		T0,AR2
      	        RPT		#25
      	        MOV		*AR2+,*AR1+
      	        
      	        MOV		*AR5,*AR1+		;根据h1b_type加入第二个偷帧
      	        
      	        RPT		#56				;后57bit的数据
      	        MOV		*AR0+,*AR1+
      	        RPT		#2				;后3个尾bit0
      	        MOV		#0,*AR1+
      	        
    RET