c50_init.asm

文件为美军4800bps语音压缩编码标准在TI的DSP芯片TMS320C5X上的实时实现源代码。

C50_INIT
	SETC    OVM
	SETC    SXM
	CLRC    HM
	CLRC    CNF             ;map DARAM B0 into data memory
	LDP     #0
	;;;;;;;;;;;;;;;;;;;;;;;;;
	;LACC #836H
	;SAMM PMST
	SPLK #836H,PMST
	;SPLK    #0034h,PMST     ;map 9K SARAM into both program and data memory
				;relocate interrupt vector at 0x800h
	SPLK    #001Fh,CWSR     ;SET BIG MODE BIT AND LARGEST WAIT STATES
	;SPLK    #0010h,CWSR     ;SET BIG MODE BIT AND DIRECT WAIT STATES
	SPLK #0FFFFH,PDWSR	;WAIT 7 MACHINE CYCLES
	;SPLK    #0FFFFh,IOWSR   ;SET I/O WAIT STATUS TO 3
	SPM 0
	LACC #000CH
	SAMM SPC
	LACC #00CCH	;FSM=FO=1 DLB=MCM=TXM=0
	SAMM SPC
	RET