cpu.h File Reference

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "../stack/stack.h"

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Classes
struct	CpuCode
	< Describes machine code that can be loaded from file and executed More...
struct	CPU
	< Describes CPU with its stack, registers and RAM More...
struct	BinaryHeader
	< Describes special machine code file header that is responsible for assembler/cpu version compatibility More...

Typedefs
typedef int	cpu_operand_t

Enumerations
enum	instruction_type {   HLT = 0, STRT = 1, PUSH = 2, POP = 3,   ADD = 4, SUB = 5, MUL = 6, DIV = 7,   OUT = 8, NONE = 9 }
	TODO включить общим файлом или сделать что-то подобное More...
enum	descriptional_argument {   NARG = 0, INT = 1, REAL = 2, RGAX = 3,   RGBX = 4, RGCX = 5, RGDX = 6, RAM = 7,   RAMA = 8, RAMB = 9, RAMC = 10, RAMD = 11 }
	< Special machine code argument that provides additional information about types of instruction operands or is an last argument if numeric data is not expected. Descriptional argument is provided only for long (instruction_length > 1) instructions). Machine code instruction can only have 1 descriptional argument More...

Functions
void	execute_cpu (CPU *some_cpu, instruction_type instruction, descriptional_argument descr_arg=NARG, cpu_operand_t operand={})
	Executes instruction with arguments and operands given on the CPU. More...
void	execute_cpucode (CPU *some_cpu, CpuCode *some_cpucode)
	Executes machine code sequence on the CPU. More...
void	cpucode_file_input (CpuCode *some_cpucode, const char *filename)
	Reads machine code from file given and checks its version compatibility. More...
void	free_cpucode (CpuCode *some_cpucode)
	Frees memory allocated by the cpucode array. More...
void	start_cpu (CPU *some_cpu)
	Executes STRT instruction on the CPU. More...
void	push_cpu (CPU *some_cpu, descriptional_argument descr_arg, cpu_operand_t value)
	Executes PUSH instruction with the arguments and operands given on the CPU. More...
void	pop_cpu (CPU *some_cpu, descriptional_argument descr_arg)
	Executes POP instruction with the arguments given on the CPU. More...
void	add_cpu (CPU *some_cpu)
	Executes ADD instruction on the CPU. More...
void	sub_cpu (CPU *some_cpu)
	Executes SUB instruction on the CPU. More...
void	mul_cpu (CPU *some_cpu)
	Executes MUL instruction on the CPU. More...
void	div_cpu (CPU *some_cpu)
	Executes DIV instruction on the CPU. More...
void	out_cpu (CPU *some_cpu)
	Executes OUT instruction on the CPU. More...
void	hlt_cpu (CPU *some_cpu)
	Executes HLT instruction on the CPU. More...

Variables
const int	CPU_VERSION = 0
	This parameter is compared to the same parameter from binary header red from machine code file. More...
const int	RAM_SIZE = 100
	Number of RAM cells. More...
const int	RAM_ACCESS_TIME = 20
	Ram access delay (adds realism to the model) More...
const int	instruction_length []
	Number of instruction arguments in machine code + instruction code (N + 1 > 0) More...

Typedef Documentation

cpu_operand_t

typedef int cpu_operand_t

Enumeration Type Documentation

descriptional_argument

enum descriptional_argument

< Special machine code argument that provides additional information about types of instruction operands or is an last argument if numeric data is not expected. Descriptional argument is provided only for long (instruction_length > 1) instructions). Machine code instruction can only have 1 descriptional argument

Enumerator
NARG
INT
REAL
RGAX
RGBX
RGCX
RGDX
RAM
RAMA
RAMB
RAMC
RAMD

instruction_type

enum instruction_type

TODO включить общим файлом или сделать что-то подобное

< Machine instructions, which are specific actions performed by the CPU when received

Enumerator
HLT
STRT
PUSH
POP
ADD
SUB
MUL
DIV
OUT
NONE

Function Documentation

add_cpu()

void add_cpu

(

CPU *

some_cpu

)

Executes ADD instruction on the CPU.

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cpucode_file_input()

void cpucode_file_input	(	CpuCode *	some_cpucode,
		const char *	filename
	)

Reads machine code from file given and checks its version compatibility.

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div_cpu()

void div_cpu

(

CPU *

some_cpu

)

Executes DIV instruction on the CPU.

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execute_cpu()

void execute_cpu	(	CPU *	some_cpu,
		instruction_type	instruction,
		descriptional_argument	descr_arg = NARG,
		cpu_operand_t	operand = {}
	)

Executes instruction with arguments and operands given on the CPU.

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execute_cpucode()

void execute_cpucode	(	CPU *	some_cpu,
		CpuCode *	some_cpucode
	)

Executes machine code sequence on the CPU.

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free_cpucode()

void free_cpucode

(

CpuCode *

some_cpucode

)

Frees memory allocated by the cpucode array.

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hlt_cpu()

void hlt_cpu

(

CPU *

some_cpu

)

Executes HLT instruction on the CPU.

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mul_cpu()

void mul_cpu

(

CPU *

some_cpu

)

Executes MUL instruction on the CPU.

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out_cpu()

void out_cpu

(

CPU *

some_cpu

)

Executes OUT instruction on the CPU.

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pop_cpu()

void pop_cpu	(	CPU *	some_cpu,
		descriptional_argument	descr_arg
	)

Executes POP instruction with the arguments given on the CPU.

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push_cpu()

void push_cpu	(	CPU *	some_cpu,
		descriptional_argument	descr_arg,
		cpu_operand_t	value
	)

Executes PUSH instruction with the arguments and operands given on the CPU.

TODO добавить полноценную поддержку

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start_cpu()

void start_cpu

(

CPU *

some_cpu

)

Executes STRT instruction on the CPU.

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sub_cpu()

void sub_cpu

(

CPU *

some_cpu

)

Executes SUB instruction on the CPU.

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Variable Documentation

CPU_VERSION

const int CPU_VERSION = 0

This parameter is compared to the same parameter from binary header red from machine code file.

instruction_length

const int instruction_length[]

Initial value:

=
{
    1, 
    1, 
    2, 
    1, 
    1, 
    1, 
    1, 
    1, 
    1, 
    1 
}

Number of instruction arguments in machine code + instruction code (N + 1 > 0)

RAM_ACCESS_TIME

const int RAM_ACCESS_TIME = 20

Ram access delay (adds realism to the model)

RAM_SIZE

const int RAM_SIZE = 100

Number of RAM cells.