cpu

package
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 Go to latest Published: Apr 30, 2020 License: MIT Imports: 2 Imported by: 0

Documentation

Overview

The Censor 932 CPU package.

After the machine description at: 

http://www.veteranklubbenalfa.se/veteran/13q1/130215.pdf

The cpu package includes instructions, instruction decoding, memory interfaces, etc.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types 

type AD type3

AD

func (AD) Execute 

func (i AD) Execute(c *CPU) uint32

type ADW 

type ADW type1

ADW

func (ADW) Execute 

func (i ADW) Execute(c *CPU) uint32

type AH 

type AH type1

AH

func (AH) Execute 

func (i AH) Execute(c *CPU) uint32

type AS 

type AS type2

AS

func (AS) Execute 

func (i AS) Execute(c *CPU) uint32

type ATS 

type ATS type1

ATS

func (ATS) Execute 

func (i ATS) Execute(c *CPU) uint32

type AW 

type AW type1

AW

func (AW) Execute 

func (i AW) Execute(c *CPU) uint32

type CD 

type CD type3

CD

func (CD) Execute 

func (i CD) Execute(c *CPU) uint32

type CH 

type CH type1

CH

func (CH) Execute 

func (i CH) Execute(c *CPU) uint32

type CLD 

type CLD type3

CLD

func (CLD) Execute 

func (i CLD) Execute(c *CPU) uint32

type CLH 

type CLH type1

CLH

func (CLH) Execute 

func (i CLH) Execute(c *CPU) uint32

type CLW 

type CLW type1

CLW

func (CLW) Execute 

func (i CLW) Execute(c *CPU) uint32

type CP 

type CP type1

CP

type CPU 

type CPU struct {
	G      [16]uint32
	IC     uint32 // This is technically an 18-bit entity
	PS     uint64
	MIR    uint32 // Actually a 24-bit entity
	Memory []MemoryPlugin
	CC     uint8
}

Basic CPU data structure

func NewCPU 

func NewCPU() *CPU

func (*CPU) FetchHalfWord 

func (c *CPU) FetchHalfWord(address uint32) uint16

Fetch a 16-bit word from a specific address

func (*CPU) FetchWord 

func (c *CPU) FetchWord(address uint32) uint32

Fetch a 32-bit word from a specific address

func (*CPU) RegisterMemory 

func (c *CPU) RegisterMemory(r MemoryRange, m MemoryBackend) error

Register a memory backend with a specific memory range. Return an error if the memory plugin is colliding with an alread-registered plugin.

func (*CPU) Step 

func (c *CPU) Step()

Make the CPU take another "step" (this is a fetch, execute, optionally stop)

func (*CPU) StoreHalfWord 

func (c *CPU) StoreHalfWord(address uint32, word uint16) uint16

func (*CPU) StoreWord 

func (c *CPU) StoreWord(address, word uint32) uint32

type CW 

type CW type1

CW

func (CW) Execute 

func (i CW) Execute(c *CPU) uint32

type DD 

type DD type3

DD

func (DD) Execute 

func (i DD) Execute(c *CPU) uint32

type DH 

type DH type1

DH

func (DH) Execute 

func (i DH) Execute(c *CPU) uint32

type DS 

type DS type2

DS

func (DS) Execute 

func (i DS) Execute(c *CPU) uint32

type DW 

type DW type1

DW

func (DW) Execute 

func (i DW) Execute(c *CPU) uint32

type DirectMemory 

type DirectMemory struct {
	// contains filtered or unexported fields
}

Various stuff for implementing "local" memory

func NewDirectMemory 

func NewDirectMemory(size uint32) *DirectMemory

func (*DirectMemory) FetchHalfWord 

func (m *DirectMemory) FetchHalfWord(address uint32) uint16

func (*DirectMemory) FetchWord 

func (m *DirectMemory) FetchWord(address uint32) uint32

func (*DirectMemory) WriteHalfWord 

func (m *DirectMemory) WriteHalfWord(address uint32, data uint16) uint16

func (*DirectMemory) WriteWord 

func (m *DirectMemory) WriteWord(address, data uint32) uint32

type EX 

type EX type1

EX

func (EX) Execute 

func (i EX) Execute(c *CPU) uint32

type IH 

type IH type1

Interchange half word

func (IH) Execute 

func (i IH) Execute(c *CPU) uint32

type IW 

type IW type1

Interchange full word

func (IW) Execute 

func (i IW) Execute(c *CPU) uint32

type Instruction 

type Instruction interface {
	Execute(*CPU) uint32 // Return the next IC
}

General Instruction abstraction

func BuildADFunc 

func BuildADFunc(op, r1, r2 uint8, d uint16) Instruction

func BuildADWFunc 

func BuildADWFunc(op, r, ix uint8, as uint16) Instruction

func BuildAHFunc 

func BuildAHFunc(op, r, ix uint8, as uint16) Instruction

func BuildASFunc 

func BuildASFunc(op, r1, r2 uint8, as uint16) Instruction

func BuildATSFunc 

func BuildATSFunc(op, r, ix uint8, as uint16) Instruction

func BuildAWFunc 

func BuildAWFunc(op, r, ix uint8, as uint16) Instruction

func BuildCDFunc 

func BuildCDFunc(op, r1, r2 uint8, d uint16) Instruction

func BuildCHFunc 

func BuildCHFunc(op, r, ix uint8, as uint16) Instruction

func BuildCLDFunc 

func BuildCLDFunc(op, r1, r2 uint8, d uint16) Instruction

func BuildCLHFunc 

func BuildCLHFunc(op, r, ix uint8, as uint16) Instruction

func BuildCLWFunc 

func BuildCLWFunc(op, r, ix uint8, as uint16) Instruction

func BuildCWFunc 

func BuildCWFunc(op, r, ix uint8, as uint16) Instruction

func BuildDDFunc 

func BuildDDFunc(op, r1, r2 uint8, d uint16) Instruction

func BuildDHFunc 

func BuildDHFunc(op, r, ix uint8, as uint16) Instruction

func BuildDSFunc 

func BuildDSFunc(op, r1, r2 uint8, as uint16) Instruction

func BuildDWFunc 

func BuildDWFunc(op, r, ix uint8, as uint16) Instruction

func BuildEXFunc 

func BuildEXFunc(op, r, ix uint8, as uint16) Instruction

func BuildIHFunc 

func BuildIHFunc(op uint8, r1, r2 uint8, rest uint16) Instruction

func BuildIWFunc 

func BuildIWFunc(op uint8, r1, r2 uint8, rest uint16) Instruction

func BuildJCFunc 

func BuildJCFunc(op, r, ix uint8, as uint16) Instruction

func BuildJOAFunc 

func BuildJOAFunc(op, r, ix uint8, as uint16) Instruction

func BuildJOSFunc 

func BuildJOSFunc(op, r, ix uint8, as uint16) Instruction

func BuildJSFunc 

func BuildJSFunc(op, r, ix uint8, as uint16) Instruction

func BuildJTSFunc 

func BuildJTSFunc(op, r, ix uint8, as uint16) Instruction

func BuildLCFunc 

func BuildLCFunc(op uint8, r1, r2 uint8, rest uint16) Instruction

func BuildLDFunc 

func BuildLDFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildLDWFunc 

func BuildLDWFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildLHFunc 

func BuildLHFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildLNFunc 

func BuildLNFunc(op uint8, r1, r2 uint8, rest uint16) Instruction

func BuildLPFunc 

func BuildLPFunc(op uint8, r1, r2 uint8, rest uint16) Instruction

func BuildLRSFunc 

func BuildLRSFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildLTFunc 

func BuildLTFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildLWFunc 

func BuildLWFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildMDFunc 

func BuildMDFunc(op, r1, r2 uint8, d uint16) Instruction

func BuildMHFunc 

func BuildMHFunc(op, r, ix uint8, as uint16) Instruction

func BuildMSFunc 

func BuildMSFunc(op, r1, r2 uint8, as uint16) Instruction

func BuildMWFunc 

func BuildMWFunc(op, r, ix uint8, as uint16) Instruction

func BuildNDFunc 

func BuildNDFunc(op, r1, r2 uint8, d uint16) Instruction

func BuildNHFunc 

func BuildNHFunc(op, r, ix uint8, as uint16) Instruction

func BuildNOPFunc 

func BuildNOPFunc(op, r, ix uint8, as uint16) Instruction

func BuildNSFunc 

func BuildNSFunc(op, r1, r2 uint8, as uint16) Instruction

func BuildNTSFunc 

func BuildNTSFunc(op, r, ix uint8, as uint16) Instruction

func BuildNWFunc 

func BuildNWFunc(op, r, ix uint8, as uint16) Instruction

func BuildODFunc 

func BuildODFunc(op, r1, r2 uint8, d uint16) Instruction

func BuildOHFunc 

func BuildOHFunc(op, r, ix uint8, as uint16) Instruction

func BuildOSFunc 

func BuildOSFunc(op, r1, r2 uint8, as uint16) Instruction

func BuildOTSFunc 

func BuildOTSFunc(op, r, ix uint8, as uint16) Instruction

func BuildOWFunc 

func BuildOWFunc(op, r, ix uint8, as uint16) Instruction

func BuildRLDFunc 

func BuildRLDFunc(op, r, ix uint8, as uint16) Instruction

func BuildRLSFunc 

func BuildRLSFunc(op, r, ix uint8, as uint16) Instruction

func BuildRRDFunc 

func BuildRRDFunc(op, r, ix uint8, as uint16) Instruction

func BuildRRSFunc 

func BuildRRSFunc(op, r, ix uint8, as uint16) Instruction

func BuildRZHFunc 

func BuildRZHFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildRZWFunc 

func BuildRZWFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildSDFunc 

func BuildSDFunc(op, r1, r2 uint8, d uint16) Instruction

func BuildSDWFunc 

func BuildSDWFunc(op, r, ix uint8, as uint16) Instruction

func BuildSFSFunc 

func BuildSFSFunc(op, r, ix uint8, as uint16) Instruction

func BuildSHFunc 

func BuildSHFunc(op, r, ix uint8, as uint16) Instruction

func BuildSLAFunc 

func BuildSLAFunc(op, r, ix uint8, as uint16) Instruction

func BuildSLDAFunc 

func BuildSLDAFunc(op, r, ix uint8, as uint16) Instruction

func BuildSLDLFunc 

func BuildSLDLFunc(op, r, ix uint8, as uint16) Instruction

func BuildSLLFunc 

func BuildSLLFunc(op, r, ix uint8, as uint16) Instruction

func BuildSRAFunc 

func BuildSRAFunc(op, r, ix uint8, as uint16) Instruction

func BuildSRDAFunc 

func BuildSRDAFunc(op, r, ix uint8, as uint16) Instruction

func BuildSRDLFunc 

func BuildSRDLFunc(op, r, ix uint8, as uint16) Instruction

func BuildSRLFunc 

func BuildSRLFunc(op, r, ix uint8, as uint16) Instruction

func BuildSRSFunc 

func BuildSRSFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildSSFunc 

func BuildSSFunc(op, r1, r2 uint8, as uint16) Instruction

func BuildSTDWFunc 

func BuildSTDWFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildSTHFunc 

func BuildSTHFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildSTWFunc 

func BuildSTWFunc(op, r1, r2 uint8, rest uint16) Instruction

func BuildSWFunc 

func BuildSWFunc(op, r, ix uint8, as uint16) Instruction

func BuildXDFunc 

func BuildXDFunc(op, r1, r2 uint8, d uint16) Instruction

func BuildXHFunc 

func BuildXHFunc(op, r, ix uint8, as uint16) Instruction

func BuildXSFunc 

func BuildXSFunc(op, r1, r2 uint8, as uint16) Instruction

func BuildXTSFunc 

func BuildXTSFunc(op, r, ix uint8, as uint16) Instruction

func BuildXWFunc 

func BuildXWFunc(op, r, ix uint8, as uint16) Instruction

type InstructionBuilder 

type InstructionBuilder func(op uint8, r1, r2 uint8, rest uint16) Instruction

type JC 

type JC type1

JC

func (JC) Execute 

func (i JC) Execute(c *CPU) uint32

type JOA 

type JOA type1

JOA

func (JOA) Execute 

func (i JOA) Execute(c *CPU) uint32

type JOS 

type JOS type1

JOS

func (JOS) Execute 

func (i JOS) Execute(c *CPU) uint32

type JS 

type JS type1

JS

func (JS) Execute 

func (i JS) Execute(c *CPU) uint32

type JTS 

type JTS type1

JTS

func (JTS) Execute 

func (i JTS) Execute(c *CPU) uint32

type LC 

type LC type1

Load Complement

func (LC) Execute 

func (i LC) Execute(c *CPU) uint32

type LD 

type LD type3

Load Direct

func (LD) Execute 

func (i LD) Execute(c *CPU) uint32

type LDW 

type LDW type1

Load Double Word

func (LDW) Execute 

func (i LDW) Execute(c *CPU) uint32

type LH 

type LH type1

Load Half Word

func (LH) Execute 

func (i LH) Execute(c *CPU) uint32

type LN 

type LN type1

Load Negative

func (LN) Execute 

func (i LN) Execute(c *CPU) uint32

type LP 

type LP type1

LOC LOU LP

func (LP) Execute 

func (i LP) Execute(c *CPU) uint32

type LRS 

type LRS type2

LRS

func (LRS) Execute 

func (i LRS) Execute(c *CPU) uint32

type LT 

type LT type1

LT

func (LT) Execute 

func (i LT) Execute(c *CPU) uint32

type LW 

type LW type1

LW

func (LW) Execute 

func (i LW) Execute(c *CPU) uint32

type MD 

type MD type3

MD

func (MD) Execute 

func (i MD) Execute(c *CPU) uint32

type MH 

type MH type1

MH

func (MH) Execute 

func (i MH) Execute(c *CPU) uint32

type MS 

type MS type2

MS

func (MS) Execute 

func (i MS) Execute(c *CPU) uint32

type MW 

type MW type1

MW

func (MW) Execute 

func (i MW) Execute(c *CPU) uint32

type MemoryBackend 

type MemoryBackend interface {
	// Retrieve a HalfWord from the specified memory address
	FetchHalfWord(uint32) uint16
	// Store a HalfWord to a specific memory address, return the
	// previous value stored there.
	WriteHalfWord(uint32, uint16) uint16
	// Retrieve a Word from the specified address and adress + 1
	FetchWord(uint32) uint32
	// Store a Word to the specified address (and address + 1),
	// return the Word that was previously stored there.
	WriteWord(uint32, uint32) uint32
}

The general interface for MemoryBackend storage.

type MemoryPlugin 

type MemoryPlugin struct {
	Range   MemoryRange
	Backend MemoryBackend
}

Rgeister a given MemoryBackend as the storage backend starting at Range.Low, ending at Range.High.

type MemoryRange 

type MemoryRange struct {
	Low, High uint32
}

A struct providing upper and lower bounds for a MemoryBackend

type ND 

type ND type3

ND

func (ND) Execute 

func (i ND) Execute(c *CPU) uint32

type NH 

type NH type1

NH

func (NH) Execute 

func (i NH) Execute(c *CPU) uint32

type NOP 

type NOP type1

NOP

func (NOP) Execute 

func (i NOP) Execute(c *CPU) uint32

type NS 

type NS type2

NS

func (NS) Execute 

func (i NS) Execute(c *CPU) uint32

type NTS 

type NTS type1

NTS

func (NTS) Execute 

func (i NTS) Execute(c *CPU) uint32

type NW 

type NW type1

NW

func (NW) Execute 

func (i NW) Execute(c *CPU) uint32

type OD 

type OD type3

OD

func (OD) Execute 

func (i OD) Execute(c *CPU) uint32

type OH 

type OH type1

OH

func (OH) Execute 

func (i OH) Execute(c *CPU) uint32

type OS 

type OS type2

OS

func (OS) Execute 

func (i OS) Execute(c *CPU) uint32

type OTS 

type OTS type1

OTS

func (OTS) Execute 

func (i OTS) Execute(c *CPU) uint32

type OW 

type OW type1

OW

func (OW) Execute 

func (i OW) Execute(c *CPU) uint32

type RLD 

type RLD type1

RLD

func (RLD) Execute 

func (i RLD) Execute(c *CPU) uint32

type RLS 

type RLS type1

RLS

func (RLS) Execute 

func (i RLS) Execute(c *CPU) uint32

type RRD 

type RRD type1

RRD

func (RRD) Execute 

func (i RRD) Execute(c *CPU) uint32

type RRS 

type RRS type1

RRS

func (RRS) Execute 

func (i RRS) Execute(c *CPU) uint32

type RZH 

type RZH type1

RZH

func (RZH) Execute 

func (i RZH) Execute(c *CPU) uint32

type RZW 

type RZW type1

RZW

func (RZW) Execute 

func (i RZW) Execute(c *CPU) uint32

type SD 

type SD type3

SD

func (SD) Execute 

func (i SD) Execute(c *CPU) uint32

type SDW 

type SDW type1

SDW

func (SDW) Execute 

func (i SDW) Execute(c *CPU) uint32

type SFS 

type SFS type1

SFS

func (SFS) Execute 

func (i SFS) Execute(c *CPU) uint32

type SH 

type SH type1

SH

func (SH) Execute 

func (i SH) Execute(c *CPU) uint32

type SLA 

type SLA type1

SLA

func (SLA) Execute 

func (i SLA) Execute(c *CPU) uint32

type SLDA 

type SLDA type1

SLDA

func (SLDA) Execute 

func (i SLDA) Execute(c *CPU) uint32

type SLDL 

type SLDL type1

SLDL

func (SLDL) Execute 

func (i SLDL) Execute(c *CPU) uint32

type SLL 

type SLL type1

SLL

func (SLL) Execute 

func (i SLL) Execute(c *CPU) uint32

type SRA 

type SRA type1

SRA

func (SRA) Execute 

func (i SRA) Execute(c *CPU) uint32

type SRDA 

type SRDA type1

SRDA

func (SRDA) Execute 

func (i SRDA) Execute(c *CPU) uint32

type SRDL 

type SRDL type1

SRDL

func (SRDL) Execute 

func (i SRDL) Execute(c *CPU) uint32

type SRL 

type SRL type1

SRL

func (SRL) Execute 

func (i SRL) Execute(c *CPU) uint32

type SRS 

type SRS type2

SIC SIU SRS

func (SRS) Execute 

func (i SRS) Execute(c *CPU) uint32

type SS 

type SS type2

SS

func (SS) Execute 

func (i SS) Execute(c *CPU) uint32

type STDW 

type STDW type1

STDW

func (STDW) Execute 

func (i STDW) Execute(c *CPU) uint32

type STH 

type STH type1

STH

func (STH) Execute 

func (i STH) Execute(c *CPU) uint32

type STW 

type STW type1

STW

func (STW) Execute 

func (i STW) Execute(c *CPU) uint32

type SW 

type SW type1

SW

func (SW) Execute 

func (i SW) Execute(c *CPU) uint32

type XD 

type XD type3

XD

func (XD) Execute 

func (i XD) Execute(c *CPU) uint32

type XH 

type XH type1

XH

func (XH) Execute 

func (i XH) Execute(c *CPU) uint32

type XS 

type XS type2

XS

func (XS) Execute 

func (i XS) Execute(c *CPU) uint32

type XTS 

type XTS type1

XTS

func (XTS) Execute 

func (i XTS) Execute(c *CPU) uint32

type XW 

type XW type1

XW

func (XW) Execute 

func (i XW) Execute(c *CPU) uint32

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