Comparing registers on DLX program

List of comparison commands on DLX program

Signed numbers Comparison

• Set Less than

slt rd, rs1, rs2 ; set rd to 1 if rs1 < rs2, otherwise set rd to 0

• Set Less than or equal

sle rd, rs1, rs2 ; set rd to 1 if rs1 ≤ rs2, otherwise set rd to 0

• Set Greater than

sgt rd, rs1, rs2 ; set rd to 1 if rs1 > rs2, otherwise set rd to 0

• Set Greater than or eual

sge rd, rs1, rs2 ; set rd to 1 if rs1 ≥ rs2, otherwise set rd to 0

Unsigned numbers Comparison 

• Set Less than -Unsigned

sltu rd, rs1, rs2 ; set rd to 1 if rs1 < rs2, otherwise set rd to 0

• Set Less than or equal -Unsigned

sleu rd, rs1, rs2 ; set rd to 1 if rs1 ≤ rs2, otherwise set rd to 0

• Set Greater than -Unsigned

sgtu rd, rs1, rs2 ; set rd to 1 if rs1 > rs2, otherwise set rd to 0

• Set Greater than or eual -Unsigned

sgeu rd, rs1, rs2 ; set rd to 1 if rs1 ≥ rs2, otherwise set rd to 0

Check condtition result register rd by using branch true or branch false Instuction



Tags:DLX programming, DLX Comparison,DLX Arithmatic Comparison, DLX If Statement