80C186EB/80C188EB Microprocessor User's Manual - CEUNES

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MATH COPROCESSING$mod186name example_80C187_init;;FUNCTION: This function initializes the 80C187 numerics coprocessor.;;SYNTAX: extern unsigned char far 187_init(void);;;INPUTS: None;;OUTPUTS: unsigned char - 0000h -> False -> coprocessor not initialized; ffffh -> True -> coprocessor initialized;;NOTE:Parameters are passed on the stack as required by; high-level languages.;lib_80186 segment public ’code’assume cs:lib_80186_187_initproc farpublic _187_initpush bp ;save caller’s bpmov bp, sp ;get current top of stackclifninitfnstcw [bp-2]sti;disable maskable interrupts;init 80C187 processor;get current control word;enable interruptsmov ax, [bp-2]and ax, 0300h ;mask off unwanted control bitscmp ax, 0300h ;PC bits = 11je Ok ;yes: processor okxor ax, ax ;return false (80C187 not ok)pop bp ;restore caller’s bpretOk: and [bp-2], 0fffeh ;unmask possible exceptionsfldcw [bp-2]_187_initendplib_80186endsendmov ax,0ffffh ;return true (80C187 ok)pop bp ;restore caller’s bpretExample 12-1. Initialization Sequence for 80C187 Math Coprocessor12-15
MATH COPROCESSING$mod186$modc187nameexample_80C187_proc;DESCRIPTION: This code section uses the 80C187 FSINCOS transcendental; instruction to convert the locus of a point from polar; to Cartesian coordinates.;;VARIABLES: The variables consist of the radius, r, and the angle, theta.; Both are expressed as 32-bit reals and 0
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80C186EB/80C188EBMicroprocessorUser
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Information in this document is pro
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CONTENTS2.3.2 Software Interrupts .
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CONTENTS6.4.4 Enabling and Disablin
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CONTENTS10.2.2 Asynchronous Mode Pr
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CONTENTSFIGURESFigurePage2-1 Simpli
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CONTENTSFIGURESFigurePage6-9 Using
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CONTENTSTableTABLESPage1-1 Comparis
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CONTENTSEXAMPLESExamplePage5-1 Init
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CHAPTER 1INTRODUCTIONThe 8086 micro
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INTRODUCTIONEach chapter covers a s
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INTRODUCTION1.3.1 How to Use Intel'
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Overview of the80C186 FamilyArchite
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OVERVIEW OF THE 80C186 FAMILY ARCHI
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Bus Interface Unit3
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BUS INTERFACE UNITPhysical Implemen
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BUS INTERFACE UNIT(X + 1)(X)A19:1 D
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BUS INTERFACE UNITFor word transfer
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BUS INTERFACE UNITCLKOUTT4 T1 T2 T3
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BUS INTERFACE UNITCLKOUTT4or TI T1
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BUS INTERFACE UNITSignals From CPU4
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BUS INTERFACE UNITT2T3or TWT4or TIC
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BUS INTERFACE UNITA normally not-re
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BUS INTERFACE UNITT2or T3or TWT3or
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BUS INTERFACE UNITAn idle bus state
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BUS INTERFACE UNIT3.5.1.1 Refresh B
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BUS INTERFACE UNITMost memory and p
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BUS INTERFACE UNITCLKOUTT4 T2 T3 TI
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BUS INTERFACE UNIT3.5.4 HALT Bus Cy
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BUS INTERFACE UNITCLKOUTT1 TI TIALE
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BUS INTERFACE UNITCLKOUTALES2:0AD15
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BUS INTERFACE UNITCLKOUTNMI/INTxNot
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BUS INTERFACE UNITALEProcessorA19:1
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BUS INTERFACE UNITThe WAIT instruct
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BUS INTERFACE UNITCLKOUTHOLD124HLDA
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BUS INTERFACE UNITCLKOUT1 3 4HOLDHL
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BUS INTERFACE UNITCLKOUTHOLD12345HL
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Peripheral ControlBlock4
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PERIPHERAL CONTROL BLOCKRegister Na
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PERIPHERAL CONTROL BLOCK4.3 RESERVE
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PERIPHERAL CONTROL BLOCK4.4.3.1 Wri
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PERIPHERAL CONTROL BLOCK4-8
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CHAPTER 5CLOCK GENERATION AND POWER
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CLOCK GENERATION AND POWER MANAGEME
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Chip-Select Unit6
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CHIP-SELECT UNIT27C25674AC138A1:13A
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CHIP-SELECT UNITT4 T1 T2 T3T4CLKOUT
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CHIP-SELECT UNITThe START register
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CHIP-SELECT UNITRegister Name:Regis
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CHIP-SELECT UNIT6.4.2 Start Address
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CHIP-SELECT UNITBUS READYREADY Cont
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CHIP-SELECT UNITTable 6-3 lists exa
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CHIP-SELECT UNITREADYALEA19:16AD15:
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CHIP-SELECT UNITDRAM_BASEEQU 128 ;W
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CHIP-SELECT UNIT; DATA SEGMENTDATAS
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CHAPTER 7REFRESH CONTROL UNITThe Re
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REFRESH CONTROL UNITRefresh Control
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REFRESH CONTROL UNIT7.5 REFRESH BUS
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REFRESH CONTROL UNIT7.7 PROGRAMMING
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REFRESH CONTROL UNITRegister Name:R
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REFRESH CONTROL UNITRegister Name:R
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REFRESH CONTROL UNITmov dx, RFBASEm
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Interrupt ControlUnit8
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INTERRUPT CONTROL UNITTimer 0 Timer
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INTERRUPT CONTROL UNITInterrupt sou
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INTERRUPT CONTROL UNIT8.2.2.1 Prior
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INTERRUPT CONTROL UNITINTINT08259Ao
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INTERRUPT CONTROL UNIT8.2.6 Edge an
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INTERRUPT CONTROL UNITTable 8-3. In
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INTERRUPT CONTROL UNIT.Register Nam
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INTERRUPT CONTROL UNIT8.3.2 Interru
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INTERRUPT CONTROL UNIT8.3.4 Priorit
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INTERRUPT CONTROL UNITReading the P
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INTERRUPT CONTROL UNITRegister Name
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INTERRUPT CONTROL UNIT3. Program th
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CHAPTER 9TIMER/COUNTER UNITThe Time
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TIMER/COUNTER UNITTimer 0 Timer 1 T
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TIMER/COUNTER UNITContinued From"A"
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TIMER/COUNTER UNITRegister Name:Reg
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TIMER/COUNTER UNITThe timer countin
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TIMER/COUNTER UNITTimer 0Serviced1I
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TIMER/COUNTER UNIT9.3.2 Synchroniza
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TIMER/COUNTER UNITlib_80186 segment
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TIMER/COUNTER UNIT$mod186nameexampl
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TIMER/COUNTER UNIT_CMPB equ word pt
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SerialCommunicationsUnit10
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SERIAL COMMUNICATIONS UNIT1 2 3 4 5
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SERIAL COMMUNICATIONS UNITThe RX ma
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SERIAL COMMUNICATIONS UNITThe Trans
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SERIAL COMMUNICATIONS UNIT5. At the
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SERIAL COMMUNICATIONS UNITRegister
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SERIAL COMMUNICATIONS UNITRegister
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SERIAL COMMUNICATIONS UNIT3. If the
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Page 277 and 278: SERIAL COMMUNICATIONS UNITMASTER186
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Page 288 and 289: CHAPTER 11INPUT/OUTPUT PORTSMany ap
Page 290 and 291: INPUT/OUTPUT PORTS11.1.2 Input Port
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Page 294 and 295: INPUT/OUTPUT PORTS11.1.5.1 Port 1 O
Page 296 and 297: INPUT/OUTPUT PORTSRegister Name:Reg
Page 298 and 299: INPUT/OUTPUT PORTSRegister Name:Reg
Page 300: Math Coprocessing12
Page 303 and 304: MATH COPROCESSING12.3 THE 80C187 MA
Page 305 and 306: MATH COPROCESSINGAvailable data typ
Page 307 and 308: MATH COPROCESSING12.3.1.5 Constant
Page 309 and 310: MATH COPROCESSINGIncreasing Signifi
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Page 313 and 314: MATH COPROCESSINGExternalOscillator
Page 315: MATH COPROCESSING80C186Modular Core
Page 320 and 321: CHAPTER 13ONCE MODEONCE (pronounced
Page 322: 80C186 InstructionSet Additions and
Page 325 and 326: 80C186 INSTRUCTION SET ADDITIONS AN
Page 336 and 337: APPENDIX BINPUT SYNCHRONIZATIONMany
Page 338: Instruction SetDescriptionsC
Page 341 and 342: INSTRUCTION SET DESCRIPTIONSTable C
Page 357 and 358: INSTRUCTION SET DESCRIPTIONSINCINST
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INSTRUCTION SET DESCRIPTIONSTable C
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INSTRUCTION SET DESCRIPTIONSOROUTTa
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INSTRUCTION SET DESCRIPTIONSC-48
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APPENDIX DINSTRUCTION SET OPCODESAN
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INSTRUCTION SET OPCODES AND CLOCK C
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Index
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INDEXand T-states, 3-9data phase, 3
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INDEXarithmetic instructions, 2-19-
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INDEXblock diagram, 3-15implementat
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INDEXWWait statesand bus cycles, 3-
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80C186EB/80C188EB Microprocessor User's Manual - CEUNES

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