Samsung YP-P10 User Manual Page 4

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iv S3C2440A MICROCONTROLLER
Table of Contents (Continued)
Chapter 3 ARM Instruction Set
Instruction Set Summay.......................................................................................................................3-1
Format Summary ........................................................................................................................3-1
Instruction Summary....................................................................................................................3-2
The Condition Field..............................................................................................................................3-4
Branch and Exchange (Bx)...................................................................................................................3-5
Instruction Cycle Times................................................................................................................3-5
Assembler Syntax.......................................................................................................................3-5
Using R15 as an Operand ............................................................................................................3-5
Branch and Branch with Link (B, Bl)......................................................................................................3-7
The Link Bit ................................................................................................................................3-7
Instruction Cycle Times................................................................................................................3-7
Assembler Syntax.......................................................................................................................3-8
Data Processing..................................................................................................................................3-9
Cpsr Flags..................................................................................................................................3-11
Shifts .........................................................................................................................................3-12
Immediate Operand Rotates .........................................................................................................3-16
Writing to R15.............................................................................................................................3-16
Using R15 as an Operandy...........................................................................................................3-16
TEQ, TST, Cmp and Cmn Opcodes...............................................................................................3-16
Instruction Cycle Times................................................................................................................3-16
Assembler Syntax.......................................................................................................................3-17
Examples ...................................................................................................................................3-17
Psr Transfer (MRS, MSR).....................................................................................................................3-18
Operand Restrictions ...................................................................................................................3-18
Reserved Bits..............................................................................................................................3-20
Examples ...................................................................................................................................3-20
Instruction Cycle Times................................................................................................................3-20
Assembly Syntax........................................................................................................................3-21
Examples ...................................................................................................................................3-21
Multiply And Multiply-Accumulate (MUL, MLA).......................................................................................3-22
Cpsr Flags..................................................................................................................................3-24
Instruction Cycle Times................................................................................................................3-24
Assembler Syntax.......................................................................................................................3-24
Examples ...................................................................................................................................3-24
Multiply Long And Multiply-Accumulate Long (MULL, MLAL)...................................................................3-25
Operand Restrictions ...................................................................................................................3-26
Cpsr Flags..................................................................................................................................3-26
Instruction Cycle Times................................................................................................................3-26
Assembler Syntax.......................................................................................................................3-27
Examples ...................................................................................................................................3-27
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