Renesas SuperH SH-4A - Page 285

Rev. 1.50, 10/04, page 265 of 448
Example:
MOV R0,R1 ;Before execution R0 = H'FFFFFFFF, R1 = H'00000000
;After execution R1 = H'FFFFFFFF
MOV.W R0,@R1 ;Before execution R0 = H'FFFF7F80
;After execution (R1) = H'7F80
MOV.B @R0,R1 ;Before execution (R0) = H'80, R1 = H'00000000
;After execution R1 = H'FFFFFF80
MOV.W R0,@-R1 ;Before execution R0 = H'AAAAAAAA, (R1) = H'FFFF7F80
;After execution R1 = H'FFFF7F7E, (R1) = H'AAAA
MOV.L @R0+,R1 ;Before execution R0 = H'12345670
;After execution R0 = H'12345674, R1 = (H'12345670)
MOV.B R1,@(R0,R2) ;Before execution R2 = H'00000004, R0 = H'10000000
;After execution R1 = (H'10000004)
MOV.W @(R0,R2),R1 ;Before execution R2 = H'00000004, R0 = H'10000000
;After execution R1 = (H'10000004)
Possible Exceptions: Exceptions may occur when MOV instructions without MOV Rm,Rn are
executed.
• Data TLB multiple-hit exception
• Data TLB miss exception
• Data TLB protection violation exception
• Data address error
• Initial page write exception (only write operation)