Texas Instruments TMS320C28x - Page 156

Byte Addressing Modes
5-32
Instructions that use this addressing mode:
MOVB AX.LSB,loc16 ; if( address mode == *+XARn[AR0/AR1/3bit] )
; if( offset == even )
; AX.LSB = [loc16].LSB;
; AX.MSB = 0x00;
; if( offset == odd )
; AX.LSB = [loc16].MSB;
; AX.MSB = 0x00;
; else
; AX.LSB = [loc16].LSB;
; AX.MSB = 0x00;
MOVB AX.MSB,loc16 ; if( address mode == *+XARn[AR0/AR1/3bit] )
; if( offset == even )
; AX.LSB = untouched;
; AX.MSB = [loc16].LSB;
; if( offset == odd )
; AX.LSB = untouched;
; AX.MSB = [loc16].MSB;
; else
; AX.LSB = untouched;
; AX.MSB = [loc16].LSB;
MOVB loc16,AX.LSB ; if( address mode == *+XARn[AR0/AR1/3bit] )
; if( offset == even )
; [loc16].LSB = AX.LSB
; [loc16].MSB = untouched;
; if( offset == odd )
; [loc16].LSB = untouched;
; [loc16].MSB = AX.LSB;
; else
; [loc16].LSB = AX.LSB;
; [loc16].MSB = untouched;
MOVB loc16,AX.MSB ; if( address mode == *+XARn[AR0/AR1/3bit] )
; if( offset == even )
; [loc16].LSB = AX.MSB
; [loc16].MSB = untouched;
; if( offset == odd )
; [loc16].LSB = untouched;
; [loc16].MSB = AX.MSB;
; else
; [loc16].LSB = AX.MSB;
; [loc16].MSB = untouched;