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UM_S3C2501X Datasheet(PDF) 6 Page - Samsung semiconductor |
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UM_S3C2501X Datasheet(HTML) 6 Page - Samsung semiconductor |
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6 / 465 page  vi S3C2501X Table of Contents (Continued) Chapter 3 Instruction Set (Continued) 3.16 Coprocessor Register Transfers (MRC, MCR) ................................................................................. 3-56 3.16.1 The Coprocessor Fields ....................................................................................................... 3-56 3.16.2 Transfers to R15 .................................................................................................................. 3-57 3.16.3 Transfers from R15 .............................................................................................................. 3-57 3.16.4 Instruction Cycle Times........................................................................................................ 3-57 3.16.5 Assembler Syntax ................................................................................................................ 3-57 3.17 Undefined Instruction ...................................................................................................................... 3-58 3.17.1 Instruction Cycle Times........................................................................................................ 3-58 3.17.2 Assembler Syntax ................................................................................................................ 3-58 3.18 Instruction Set Examples................................................................................................................. 3-59 3.18.1 Using The Conditional Instructions ....................................................................................... 3-59 3.18.2 Pseudo-Random Binary Sequence Generator...................................................................... 3-61 3.18.3 Multiplication by Constant Using The Barrel Shifter.............................................................. 3-61 3.18.4 Loading a Word From an Unknown Alignment ..................................................................... 3-63 3.19 Thumb Instruction Set Format ......................................................................................................... 3-64 3.19.1 Format Summary................................................................................................................. 3-64 3.19.2 Opcode Summary................................................................................................................ 3-65 3.20 Format 1: Move Shifted Register..................................................................................................... 3-67 3.20.1 Operation............................................................................................................................. 3-67 3.20.2 Instruction Cycle Times........................................................................................................ 3-67 3.21 Format 2: Add/Subtract ................................................................................................................... 3-68 3.21.1 Operation............................................................................................................................. 3-68 3.21.2 Instruction Cycle Times........................................................................................................ 3-69 3.22 Format 3: Move/Compare/Add/Subtract Immediate......................................................................... 3-70 3.22.1 Operations ........................................................................................................................... 3-70 3.22.2 Instruction Cycle Times........................................................................................................ 3-70 3.23 Format 4: ALU Operations .............................................................................................................. 3-71 3.23.1 Operation............................................................................................................................. 3-71 3.23.2 Instruction Cycle Times........................................................................................................ 3-72 3.24 Format 5: Hi-Register Operations/Branch Exchange ....................................................................... 3-73 3.24.1 Operation............................................................................................................................. 3-73 3.24.2 Instruction Cycle Times........................................................................................................ 3-74 3.24.3 The Bx Instruction................................................................................................................ 3-74 3.24.4 Using R15 as an Operand .................................................................................................... 3-75 3.25 Format 6: PC-Relative Load............................................................................................................ 3-76 3.25.1 Operation............................................................................................................................. 3-76 3.25.2 Instruction Cycle Times........................................................................................................ 3-76 3.26 Format 7: Load/Store With Register Offset...................................................................................... 3-77 3.26.1 Operation............................................................................................................................. 3-77 3.26.2 Instruction Cycle Times........................................................................................................ 3-78 3.27 Format 8: Load/Store Sign-Extended Byte/Half-Word ..................................................................... 3-79 3.27.1 Operation............................................................................................................................. 3-79 3.27.2 Instruction Cycle Times........................................................................................................ 3-80 |
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