dac.asm

来自「ELAN eAM eDSP esL Serial an assembly ex」· 汇编 代码 · 共 33 行

.IFNDEF @_DAC_ASM
@_DAC_ASM	.EQU	1


.include "registerext.def"


.CODE _DAC_MACRO_
DA_CON .MACRO P_DA_SIGN, P_DA_MOD, P_DA_VOL
    PUSH R0
    R0 = #((1<<DACEN)+((1&P_DA_SIGN)<<@_LIB_DAC2SC)+((3&P_DA_MOD)<<3)+(7&P_DA_VOL))
    IO[@_LIB_DACCON] = R0
    POP R0
.ENDM
;**********************************************************
;**********************************************************
DA_OFF .Macro
    PUSH R0
    R0 = #0
    IO[@_LIB_DACCON] = R0
    POP R0
.ENDM
;**********************************************************
;**********************************************************
DA_OUT .Macro P_DA_DATA
    PUSH R0
    R0 = P_DA_DATA
    IO[@_LIB_DACD] = R0
    POP R0
.ENDM
;**********************************************************
;*******************DAC MACRO******************************
.ENDIF