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Texas Instruments MSP50C614 manual Negacs Twos Complement Negation of Accumulator String

Models: MSP50C614

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Page 233

Individual Instruction Descriptions

4.14.47 NEGACS							Two's Complement Negation of Accumulator String
Syntax

	[label]		name			dest, src						Clock, clk			Word, w			With RPT, clk						Class

		NEGACS				An[~], An[~]							nS+3			1			nR+3					3
Execution				dest		⇐	±src
				PC ⇐ PC + 1
Flags Affected				OF, SF, ZF, CF are set accordingly
Opcode

Instructions					16		15	14	13	12	11	10	9	8	7	6	5	4	3		2		1		0

MULSPL S An[~], An[~]					1		1	1	0	0	1	1	An		0	0	0	0	0	0		A~			~A
Description				Perform two's complement negation of src accumulator string and store result
				in dest accumulator string.
See Also				NEGAC, SUB, SUBB, SUBS, ADD, ADDB, ADDS, NOTAC, NOTACS
Example 4.14.47.1				NEGACS A3~, A3

Negate accumulator string A3 and store result in accumulator string A3~.

Assembly Language Instructions

4-141

Page 233

Image 233

Texas Instruments MSP50C614 manual Negacs Twos Complement Negation of Accumulator String, Dest accumulator string

Contents

MSP50C614 Mixed-Signal Processor Users Guide Important Notice About This Manual How to Use This ManualNotational Conventions This document uses the following conventionsNotational Conventions Csr ±a /user/ti/simuboard/utilitiesThis provides three choices *, *+, or *± Trademarks Information About Cautions and WarningsThis book may contain cautions and warnings Information About Cautions and WarningsPage Contents Contents Assembly Language InstructionsCode Development Tools ContentsixCustomer Information ROM Usage With Respect to Various Synthesis AlgorithmsApplications Contentsxi Figures ±11 ±10±12 ±13Tables ±33 ±32±34 ±35Page Introduction to the MSP50C614 Features of the C614 Features of the C614Introduction to the MSP50C614 ApplicationsApplications Development Device MSP50P614 Development Device MSP50P614Functional Description Functional DescriptionC605 and C604 Preliminary Information C605 and C604 Preliminary Information±1. Functional Block Diagram for the C614 Resistor Trim Operation Connections Crystal Oscillator Operation Connections±3. Reset Circuit Terminal Assignments and Signal Descriptions Terminal Assignments and Signal Descriptions±1. Signal and Pad Descriptions for the C614 Description Pin # ±2. MSP50C614 100-Pin PJM Plastic Package Pinout DescriptionPD0 PD1 PD2 PD3 PD4 PD5 PD6 ±5 Pin Grid Array Package for the Development Device, P614 VPP VSS VDD DAC M DAC P MSP50C614 Architecture Architecture Overview MSP50C614 Architecture ±1. MSP50C614 Core Processor Block DiagramALU Multiplier Computation Unit±1. Signed and Unsigned Integer Representation Computation UnitComputation Unit Arithmetic Logic Unit ±3. Overview of the Multiplier Unit OperationAccumulator Block ±4. Overview of the Arithmetic Logic Unit AC0 . . . AC31 Accumulator BlockAccumulator Block Pointers AP0 . . . AP3Data Memory Address Unit Data Memory Address Unit±6. Data Memory Address Unit RAM ConfigurationData Memory Addressing Modes Program Counter Unit Program Counter UnitBit Logic Unit Memory Organization RAM and ROM Memory Organization RAM and ROMMemory Map Peripheral Communications Ports ±7. C614 Memory Map not drawn to scale±2. Summary of C614s Peripheral Communications Ports Reset LOWInterrupt Name ROM address Event Source Interrupt Priority Interrupt VectorsROM Code Security Write only Block Protection WordProtection marker = the value programmed at TM5… TM0 true≡ the binary complement of NTM = the value programmed at FM5… FM0 falseInterrupt Logic Interrupt LogicMacro Call Vectors IFR Interrupt Logic ±8. Interrupt Initialization Sequence Timer Registers Timer RegistersTriggers INT1 on underflow Timer Registers Oscillator Options Clock ControlPLL Performance Clock ControlClock Speed Control Register ±9. PLL PerformanceClkSpdCtrl register CPUClkSpdCtrl Value Copied Shaded RTO Oscillator Trim AdjustmentRtrim Register Read Only Applies to MSP50C614 Device Only Execution Timing Execution TimingReduced Power Modes Reduced Power ModesReduced Power Modes Reduced Power Modes Light MID Deep ±3. Programmable Bits Needed to Control Reduced Power ModesBy Controls → deeper sleep … relatively less power →Component Determined Deeper sleep … Relatively less power → Event Determined Global interrupt enable is SET Peripheral Functions Port a Port B Port C Port D Port E I/OGeneral-Purpose I/O Ports Peripheral Functions Input Port F Dedicated Input Port FTotem-Pole Output Port G Dedicated Output Port GInternal and External Interrupts Branch on D PortInterrupt Vector Source Trigger Event Priority Comment ±1. InterruptsPulse-Density Modulation Rate Digital-to-Analog Converter DACDAC Control and Data Registers Digital-to-Analog Converter DACOverflow bits Least-significant data value Ignored bits ±1. PDM Clock Divider PDM Clock DividerDigital-to-Analog Converter DAC CPU Pllm Comparator TIMER1 starts counting For INT7 is enabledCleared. Refer to .7, Interrupt Logic, for more details AddressComparator IntGenCtrl register Interrupt/General Control RegisterInterrupt/General Control Register Interrupt/General Control Register Hardware Initialization States Hardware Initialization StatesHardware Initialization States RZF Bit Bit Name Initialized Value DescriptionPage Assembly Language Instructions System Registers IntroductionSystem Registers Assembly Language InstructionsTop of Stack, TOS Accumulators AC0±AC31 Product High Register PHProduct Low Register PL Bit Accumulator Pointers AP0±AP3Indirect Register R0±R7 Status Register Stat String Register STRFunction ±1. Status Register Stat1 MSP50P614/MSP50C614 Instruction Syntax Instruction Syntax and Addressing ModesAddressing Modes ±2. Addressing Mode EncodingOpcode Next a±3. Rx Bit Description ±4. Addressing Mode Bits and adrs Field Description±6. Auto Increment and Auto Decrement Modes ±5. MSP50P614/MSP50C614 Addressing Modes SummaryFlag Repeat Flag addressing mode encoding, flagadrsFlagadrs Clocks Words Addressing Operation, ² SyntaxExample Immediate AddressingSyntax Mulr *0x02A1 Direct AddressingMOV *0x012F * 2, *A0 SyntaxOperation Indirect Addressing±9. Indirect Addressing Syntax MOV A2, *R0 Relative Addressing*R4++ Movb *R7++, A3Short Relative A0, *R3+R5Long Relative MOV A3, *R6+0x10TF1, *0x20 Flag AddressingOr TF2, *R6+0x02 XOR TF1, *R6+0x208 Tag/Flag Bits TF1,*ram1 TF1 bit in Stat is set!? Possible sources of confusion Consider the following codeSymbol Explanation ±10. Symbols and ExplanationInstruction Classification Instruction ClassificationClass Sub- Description ±11. Symbols and Explanation±11. Instruction Classification Class Sub Description Class 1 Instructions Memory and Accumulator Reference ±12. Classes and Opcode Definition±14. Class 1a Instruction Description ±13. Class 1 Instruction EncodingC1a ~A~ C1bC1b Mnemonic Description ±15. Class 1b Instruction DescriptionShltpls a n, adrs Class 2 Instructions Accumulator and Constant ReferenceC2a Mnemonic Description ±16. Class 2 Instruction Encoding±17. Class 2a Instruction Description Class 3 Instruction Accumulator Reference ±18. Class 2b Instruction DescriptionC2b Mnemonic Description ADD An ~, An ~, imm16 , next aMnemonic Description ±19. Class 3 Instruction Encoding±20. Class 3 Instruction Description Zero or be set equal to the sign bit Xsgm dependent MOV SV, An~ , next a ±21. Class 4a Instruction Encoding Class 4 Instructions Address Register and Memory Reference±23. Class 4b Instruction Description ±22. Class 4a Instruction Description±24. Class 4c Instruction Description ±25. Class 4d Instruction Description±27. Class 5 Instruction Description Class 5 Instructions Memory Reference±26. Class 5 Instruction Encoding RET² ±28. Class 6a Instruction Encoding Class 6 Instructions Port and Memory Reference±29. Class 6a Instruction Description C6a Mnemonic DescriptionC6b Mnemonic Description ±30. Class 6b Instruction DescriptionClass 7 Instructions Program Control Vector8 ±31. Class 7 Instruction Encoding and DescriptionJcc Ccc±32. Class 8a Instruction Encoding Class 8 Instructions Logic and Bit±34. Class 8b Instruction Description ±33. Class 8a Instruction DescriptionClass 9 Instructions Miscellaneous C8a Mnemonic Description±36. Class 9a Instruction Description ±35. Class 9a Instruction Encoding±37. Class 9b Instruction Description C9a Mnemonic Description±38. Class 9c Instruction Description Bit, Byte, Word and String Addressing±39. Class 9d Instruction Description C9c Mnemonic Description±3. Data Memory Organization and Addressing ±40. Data Memory Address and Data Relationship Mode Address Used Data Order Rx Post modify ²Movb A0, *0x0003 MOV A0, *0x0004Which uses the absolute word memory address ±4. Data Memory ExampleRflag MSP50P614/MSP50C614 Computational Modes MSP50P614/MSP50C614 Computational Modes±41. MSP50P614/MSP50C614 Computational Modes Computational Setting Resetting Function Mode InstructionSXM Example 4.6.1 SXM Example 4.6.1 SovmExample 4.6.2 Sovm Hardware Loop Instructions Hardware Loop InstructionsSyntax Operation Limitations ±42. Hardware Loops in MSP50P614/MSP50C614±43. Initial Processor State for String Instructions String InstructionsString Instructions Registers register# = valueMulapl A0, A0~ ±44. Lookup Instructions Lookup InstructionsLookup Instructions Instructions Description Data TransferMOV An, adrs SUB An MOV An, *An Special Filter Instructions Input/Output InstructionsInput/Output Instructions Xk±2 Xk+2 Xk±1 xk+1 32 or Yk = Σm =0..N hm⋅xk-mSpecial Filter Instructions STR,N±2 STR,0 0x0104 After FIR/COR execution Important note about setting the Stat register Firkcoeffs Coeffarray Samplebuf address Coeffarray address FIRK/CORK only Program memory FIRK/CORKFIR/COR only = 0..N CoeffarraySamplebuf Coeffarray is stored Conditionals ConditionalsOperands Symbol Meaning≤ dma6 ≤ ≤ dma16 ≤ ≤ port4 ≤ ≤ port6 ≤Clk AdrsnDma n FlgPort n Offset nPma n ±47. Flag Addressing Syntax and BIts ±46. Addressing Mode Bits and adrs Field Description±45. Auto Increment and Decrement Individual Instruction Descriptions Individual Instruction DescriptionsExecution 14.1 ADD Add wordSee Also DescriptionOpcode AddbPC PC + Flags Affected Clock , clk Words , w Adds Add StringAdds A1, A1~, A1 14.4 Bitwise TF2, *0x0020 ANDS, ANDB, OR, ORB, ORS, XOR, XORB, XorsA3, *R4Ð± Src byte PC PC + Andb Bitwise and ByteOF, SF, ZF, CF are set accordingly Clock , clk Word , wAnds A0, A0~, A0 Ands Bitwise and StringAnds A0, A0~, *R2 Clock, clk Word, wSave next instruction address PC + Begloop Begin LoopFlags Affected None Opcode Order to loop N timesCall Unconditional Subroutine Call TOS PC + TOSR7 + NOPTrue condition Not true condition ±48. Names for ccSyntax Alternate Syntax Description 0x2010 CALL, VCALL, RET, IretCTF1 CrnbeStat flags set by src ± src1 operation 14.10 CMP Compare Two WordsPC = PC + w CMPB, CMPS, Jcc, CccCMP R0, R5 CMP R2, 0xfe20Cmpb R3 Cmpb Compare Two BytesPC PC + w Flags Affected Cmps Compare Two StringsCmps A1~ Cmps A2, A2~3n R+2 14.13 COR Correlation Filter FunctionXeven = R xeven + R5 Xeven ++Sample data. During Cork execution, interrupt is queued Cork Correlation Filter FunctionAn, *Rx 3nR+2 Rxeven = Rxeven + R5Decrement R4 by n 1 or First address after Begloop Else Endloop End LoopArgument, it assumes n =1 BEGLOOP, InteAn~ , next a Extsgn Sign Extend WordCopy accumulator sign flag SF to all 16 bits of An~ Dest , modDest Extsgns Sign Extend StringExtsgn 2n R+2 14.18 FIR FIR Filter Function Coefficients in RAMAssembly Language Instructions 101 RPT, FIR, COR, Cork FirkBe even. During Firk execution, interrupts are queued Stop processor clocks Assembly Language Instructions 103Idle Halt Processor A2~, 0x3d 14.21 Input From Port Into WordINS, OUT, Outs IN, OUT, Outs 14.22 INS Input From Port Into StringIM is Stat bit Intd Interrupt DisableStat to INTE, IretINTD, Iret Inte Interrupt EnableAssembly Language Instructions 107 R7 R7 ± Iret Return From InterruptSee Also RET, CALL, C cc, INTE, Intd Description Return from interrupt. Pop top of stack to program counterPC PC + 14.26 Jcc Conditional Jumps110 If test condition is false, a NOP is executed JNZ See Also JMP, CALL, C cc ExampleJE 0x2010, R3++R5 JIN1 0x2010, R1±±Post±modify Rx if specified 14.27 JMP Unconditional JumpRCF and RZF affected by post±modification of Rx See Also Jcc, CALL, Ccc Example14.28 MOV Move Data Word From Source to Destination Clock, clk Word, w With RPT, clk Class XSF, XZF are set accordinglyTFn, cc , Rx STR, imm8116 With some operand types Example 4.14.28.10 MOV MR, A3, ±±A MOVU, MOVT, MOVB, MOVBS, MovsExample 4.14.28.11 MOV A1~, *A1 Example 4.14.28.12 MOV *0x0200 * 2, R0Example 4.14.28.15 MOV *0x0200 * 2, R0 Example 4.14.28.13 MOV R1, 0x0200Transfer R5 to R0 Example Example 4.14.28.18 MOV *R6 + 8 * 2, DPMOVAPHS, MOVTPH, MOVTPHS, MOVSPH, Movsphs Movaph Move With Adding PHExecution + PH Execution An + PH Movaphs Move With Adding PHBackground. See .8 for more details MOVAPH, MOVTPH, MOVTPHS, MOVSPH, MovsphsCopy value of unsigned src byte to dest byte Movb Move Byte From Source to DestinationMovb A0, *R2 Copy data memory byte pointed by R2 to accumulator A0Movb R2 Movb *R2, A0Movb A0, 0xf2 TAG bit is set to bit 17 th value Movbs Move Byte String from Source to DestinationMovbs A2, *0x0200 Movbs *0x0200, A2Movs Move String from Source to Destination Movs A1~, A1 Movs A2~Movs A1, A1~ MOVSPHS, MOVAPH, MOVAPHS, MOVTPH, Movtphs Assembly Language Instructions 127Movsph Movsphs Move String With Subtract From PH Second word ± PH MR contents of adrsDetails MOVSPH, MOVAPH, MOVAPHS, MOVTPH, MovtphsPC PC + w Flags Affected None Opcode MovtAvailable MOVU, MOV, MOVT, MOVB, MOVBS, MovsTAG bit is set accordingly UM is set to Movu Move Data UnsignedMOV, MOVB, MOVT, MOVBS, Movs Copy the value pointed by R3 to MRAssembly Language Instructions 131 MR * src PC PC + w Flags Affected 14.38 MUL Multiply RoundedAccumulator pointer if specified MULR, MULAPL, MULSPL, MULSPLS, MULTPL, MULTPLS, MulaplMuls Multiply String With No Data Transfer Length nS+2, where nS is the value in STR registerPH,PL MR * src string MUL, MULR, MULAPL, MULSPL, MULSPLS, MULTPL, MultplsPH ,PL MR * src Mulapl Multiply and Accumulate ResultBackground. See .8 for more detail MULAPLS, MULSPL, MULSPLS, MULTPL, MultplsMULAPL, MULSPL, MULSPLS, MULTPL, Multpls Mulapls Multiply String and Accumulate ResultMR * src Occuring in the background. See .8 for more details Mulspl Multiply and Subtract PL From AccumulatorMULSPLS, MULTPL, MULTPLS, MULAPL, Mulapls Syntax Description Mulspl adrsFrom dest string Mulspls Multiply String and Subtract PL From AccumulatorMULSPL, MULTPL, MULTPLS, MULAPL, Mulapls Syntax Description Mulspls adrsMultpl Multiply and Transfer PL to Accumulator Execution PH, PL MR * src PC PC + Flags Affected MultplsStored in An string MULTPL, MULAPL, MULAPLS, MULSPL, MulsplsAccumulator Negac Twos Complement Negation of AccumulatorNEGACS, SUB, SUBB, SUBS, ADD, ADDB, ADDS, NOTAC, Notacs Example 4.14.46.1 Negac A3~, A3, ±±ANegacs Twos Complement Negation of Accumulator String Assembly Language Instructions 141Dest accumulator string NEGAC, SUB, SUBB, SUBS, ADD, ADDB, ADDS, NOTAC, NotacsRPT 14.48 NOP No OperationExecution PC PC + NOTACS, AND, ANDB, ANDS, OR, ORB, ORS, XOR, XORB, Xors Notac Ones Complement Negation of AccumulatorNEGAC, Negacs Example 4.14.49.1 Notac A3~, A3, ±±AAccumulator string Notacs Ones Complement Negation of Accumulator StringNegacs A3~Accumulator pointers are allowed with some operand types 14.51 or Bitwise Logical orTFn bits in Stat register are set accordingly Or TF1, *R6+0x22 ORB, ORS, AND, ANDS, XOR, XORS, NOTAC, NotacsOr A0, *R0++R5 Or src 14.52 ORB Bitwise or ByteAccumulator is affected OR, ORS, AND, ANDS, XOR, XORS, NOTAC, NotacsPC + w Flags Affected 14.53 ORS Bitwise or StringOR, ORB, AND, ANDS, XOR, XORS, NOTAC, Notacs ORS A0, A0~, A0OUTS, IN, INS 14.54 OUTAddress is multipled by 4 to get the actual port address Port6 specified in the instruction Outs Output String to PortOUT, IN, INS Port6 , An ~14.56 RET Return From Subroutine CALL, Ccc Assembly Language Instructions 151PC TOS CALL, i.e., RET followed by a RET should not be allowedExample 4.14.57.2 Rflag *R6 + Rflag Reset Memory FlagSflag , Stag , Rtag Resets the fractional mode. Clears FM bit of Stat Reset Fractional Mode Syntax14.58 RFM STAT.FMSaturation output normal mode Rovm Reset Overflow ModeResets the overflow mode to zero Stat .OMLoad src to repeat counter 14.60 RPT Repeat Next InstructionLoad imm8 to repeat counter After execution completesStag , Rflag , Sflag Rtag Reset TagRtag *R6+0x0002 Rtag *R6+0x0003Assembly Language Instructions 157 14.62 RXM Reset Extended Sign ModeSTAT.XM SXMRflag , Stag , Rtag Address flagadrs only accesses the 17 th bitSflag Set Memory Flag Mode for signed fractional arithmetic 14.64 SFM Set Fractional ModeAssembly Language Instructions 159 Set fractional mode. Set FM bit of Stat toPH , PL 14.65 SHL Shift LeftAccumulator. Use Shlac for this purpose ShlsIts offset. LSB of result is set to zero Shlac Shift Left AccumulatorShift accumulator A1 by one bit to the left Example 4.14.66.2 Shlac A1~, A1, ±±AAccumulators in the string Shlacs Shift Left Accumulator String IndividuallyExample 4.14.68.1 Shlapl A0, *R4++R5 Shlapl Shift Left with AccumulateShlapl A2, *R1++ Example 4.14.68.3 Shlapl A1, A1, ++AShift a n ~ string left, addb PL to a n ~ Shlapls Shift Left String With AccumulateShift data memory string left, add PL to a n Shls Shift Left Accumulator String to Product Assembly Language Instructions 165Execution PH, PL An~Example 4.14.71.1 Shlspl A0, *R4++R5 Shlspl Shift Left With Subtract PLShlspl A2, *R1++ Example 4.14.71.3 Shlspl A1, A1, ++ABit to the next accumulator Shlspls Shift Left String With Subtract PLShlspl , Shltpl , SHLTPLS, SHLAPL, Shlapls Syntax Description Shlspls An, adrsExample 4.14.73.1 Shltpl A0, *R4++R5 Shltpl Shift Left and Transfer PL to AccumulatorShltpl A2, *R1++ Example 4.14.73.3 Shltpl A1, A1, ++AExecution PH, PL src SV Shltpls Shift Left String and Transfer PL to AccumulatorReceives the same data as PH SHLTPL, SHLAPL, SHLAPLS, SHLSPL, ShlsplsRegister Shrac Shift Accumulator RightShift right one bit the accumulator A1 Example 4.14.75.2 Shrac A1~, A1, ++AShracs Shift Accumulator String Right Assembly Language Instructions 171SHRAC, SHL, SHLS, SHLAPL, SHLAPLS, SHLSPL, SHLSPLS, Shltpl ShltplsOutput DSP mode Set Overflow Mode SyntaxSovm STAT.OMStag *0x401 StagRTAG, RFLAG, Sflag Dest, src , src1 , next a 14.79 SUB SubtractAn ~ , An , adrs , next a An ~ , An ~ , imm16 , next aSUB A1, A1~, A1 Example 4.14.79.2 SUB A0, A0, 2, ++ASUB A3~, A3, *R4Ð SUB R3, R5Subtract 0x45 from accumulator A2 byte Subb Subtract ByteSubtract 0xF2 from register R3 byte Syntax Description Subb a n, imm8Subs Subtract Accumulataor String Assembly Language Instructions 177Subs A3~, A3~, PH Subs A2, A2, A2~Subs A2, A2~, A2 Sets extended sign mode status register Stat bit 0 to 14.82 SXM Set Extended Sign ModeAssembly Language Instructions 179 RXMPush PC + 0x7F00 Vcall Vectored CallR7 R7 + Flags Affected See Also RET, IRET, CALL, C cc ExampleXOR src For two operands 14.84 XOR Logical XORXOR src For three operands TAG bit is set accordingly Src is flagadrsExample 4.14.84.2 XOR A0, A0, 2, ++A XORB, XORS, AND, ANDS, OR, ORS, ORB, NOTAC, NotacsExample 4.14.84.1 XOR A1, A1, 0x13FF XOR, XORS, AND, ANDS, OR, ORS, ORB, NOTAC, Notacs Assembly Language Instructions 183Xorb Logical XOR Byte Dest string Xors Logical XOR StringXOR, XORB, AND, ANDS, OR, ORS, ORB, NOTAC, Notacs Xors A2, A2~, A2Assembly Language Instructions 185 Reset the content of accumulator A0 to zero14.87 ZAC Zero Accumulator ZacsZacs Zero Accumulator String Reset the content of offset accumulator string A1~ to zeroPC PC + Flags Affected ZF = Zero the specified accumulator stringInstruction Set Encoding Assembly Language Instructions 187Instruction Set Encoding 188 Assembly Language Instructions 189 190 Assembly Language Instructions 191 192 Assembly Language Instructions 193 194 True condition Not true condition Assembly Language Instructions 195Instruction Set Summary An~, An~ , next a Pma16 , Rmod Assembly Language Instructions 197An~, imm16 , next a Rx, R5~, adrs , next a ±46 Adrs, a n~ , next a ±46Adrs , *An ±46 An ~, imm16 , next aAdrs, SV Assembly Language Instructions 199Adrs, APn Adrs, TOS~ , next a MR, adrs~, a n~ , next a ~ , a n~TFn, flagadrs NR+3 TFn, cc , Rx An~, An~ , next a NR+3 Assembly Language Instructions 201An~, An~, pma16 An~, An~, An~, a n, a n~ , next a ~, a n~~, a n, a n~ ~, a n~, PHConditional on RZF=0 and RCF=1 Not condition RZF≠0 or RCF≠1 Conditional on RCF=1 Not condition RCF=0Conditional on RZF=1 Not condition RZF=0 Conditional on ZF=0 and SF=1 Not condition ZF≠0 or SF≠1Instruction Set Summay 204Assembly Language InstructionsMC = Pllm value+1 ⋅ 131.07 kHz 206Assembly Language Instructions Summay Instruction Set Summay 208Assembly Language Instructions Code Development Tools Introduction Code Development Tools MSP50C6xx Software Development ToolMSP50C6xx Software Development Tool PC Requirements RequirementsDevelopment Requirements RequirementsHardware Installation Hardware InstallationSoftware Installation Software Installation±5. Setup Window ±6. Exit Setup Dialog ±8. Choose Destination Location Dialog ±9. Select Program Folder Dialog ±10. Copying Files ±11.Setup Complete Dialog Software Emulator Software EmulatorOpen Screen ±13. Project Menu Projects ±15. File Menu Options±16. MSP50P614/MSP50C614 Code Development Windows Description of Windows±17. RAM Window ±18. CPU Window ±19. Program Window ±20. Hardware Breakpoint Dialog ±21. Inspect Dialog Debugging a Program ±23. I/O Ports Window±24. Debug Menu Software Emulator ±25. Eprom Programming Dialog ±26. Trace Mode ±27. Init Menu Option Initializing ChipEmulator Options ±28. Options Menu Emulator Online Help System ±30. Windows Menu Options±31. Context Sensitive Help System Known Differences, Incompatibilities, Restrictions Assembler AssemblerAssembler DLL ~ indicates bitwise complement Assembler DirectivesExamples #IFDEF #ELSE see #IF and #IFDEF#IFNDEF symbol Example #IFDEF symbol#ELSE #ENDIFAssembler Linker Linker± ± Compiler C± ± CompilerIerr=LINKMAIN sourcefile,exefile Foreword Type Name Mnemonic Range Size in Bytes Example Variable TypesExternal References 4 C± ± Directives Defines a replacement string for a given stringWithout Arguments With ArgumentsMust be present to terminate a #ifdef or #ifndef directive See #if directiveInclude Files Initializations Function Prototypes and DeclarationsRAM Usage String Functions±1. String Functions An example of the use of xferconst is Constant FunctionsComparisons Implementation DetailsThis section is C± ± specific Signed comparison of a and b. a is in A0, b is in A0~Unsigned comparison of a and b. a is in A0, b is in A0~ Assembly VectorFunction Calls DivisionStack frame has the following structure Low Address High AddressCmmfunc bidonint i1,char *i2 is valid, but Programming ExampleOn Call On RETIfteststringm2,0,lgm2,LTSN Programming Example, C ±± With Assembly Routines ±±±±±±±±±±±±±±± Addb R7,2 To C function return in cmmreturn ±±±±±±±±±±±±±± OldR5 Return Addr Param R7,R5 Stack data Param ±±±±±±±±±±±±±± To ASM function return External ProvidedData Iprtc Implementation Details Nop ret Dummy interrupt routines Implementation Details Implementation Details Beware of Stack Corruption Beware of Stack CorruptionReported Bugs With Code Development Tool Page Applications Application Circuits Application CircuitsMSP50P614 only 100 kΩ MSP50C614/MSP50P614 Initialization Codes MSP50C614/MSP50P614 Initialization CodesFile init.asm Begloop ~,TIM2REFOSC + TIM2IMR Overview Texas Instruments C614 Synthesis CodeGetting Started Texas Instruments C614 Synthesis CodeDirectory Structure Running the ProgramSpkram.irx ROM File DescriptionAdding Another Module RAM UsageUnderstanding the RAM Map Modifying Files and ProjectsThese files may be edited for special purpose code Memory OverlayThese files should never be edited Creating a New ProjectROM Usage With Respect to Various Synthesis Algorithms ROM Usage With Respect to Various Synthesis AlgorithmsCustomer Information Mechanical Information Mechanical InformationDie Bond-Out Coordinates Customer Information Package Information±1 -Pin PJM Mechanical Information ±2 -Pin Grid Array Package for the Development Device, P614 ±3 Pin Grid Array PGA Package Leads, P614 Customer Information Fields in the ROM Customer Information Fields in the ROMSpeech Development Cycle Speech Development CycleDevice Production Sequence Nprf Device Production SequenceNew Product Release Forms Ordering InformationOrdering Information 614New Product Release Forms Authorization to Generate MASKS, PROTOTYPES, and Risk UnitsPage MSP50C605 Preliminary Data Introduction Features ArchitecturePort Name IO Location MSP50C614 MSP50C605 FeaturesArchitecture 1 RAM 3 I/O Pins2 ROM Port Description Function Name AddressFigure A±1. MSP50C605 Architecture Data Memory Program MemoryData ROM Peripheral PortsPlastic Package Description Pin# Page MSP50C604 Preliminary Data Introduction Features Architecture PackagingIntroduction MSP50C604 Preliminary Data ArchitectureFigure B±1. MSP50C604 Block Diagram Host Read Sequence Slave Mode OperationHost Write Sequence Peripheral Ports Program MemoryData Memory Interrupts Packaging PackagingPlastic Package Packaging Topic MSP50C605 Data SheetMSP50C605 Data Sheet

Individual Instruction Descriptions

4.14.47 NEGACS

Two's Complement Negation of Accumulator String

Syntax

Clock, clk

Class

Execution

PC ⇐ PC + 1

OF, SF, ZF, CF are set accordingly

Opcode

Description

in dest accumulator string.

See Also

NEGAC, SUB, SUBB, SUBS, ADD, ADDB, ADDS, NOTAC, NOTACS

Example 4.14.47.1

Assembly Language Instructions

4-141