66 lines
881 B
C++
66 lines
881 B
C++
#ifndef VM_H
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#define VM_H
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#include "vmas.h"
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#include <stdint.h>
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#define MOVI_SIZE 4
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#define MOVR_SIZE 2
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#define GETM_SIZE 4
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#define PUTM_SIZE 4
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#define ADDI_SIZE 4
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enum regs { R0, R1, R2, R3, S0, S1, S2, S3, IP, BP, SP };
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/*
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MEMORY LOCATIONS AND IMMEDIATES ARE 16 BITS LONG
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*/
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enum ins {
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MOVI,
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MOVR,
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GETM,
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PUTM,
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ADDI,
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ADDR,
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SUBI,
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SUBR,
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XORI,
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XORR,
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NOTI,
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NOTR,
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MULI,
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MULR,
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DIVI,
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DIVR,
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PUSH,
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POOP,
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CALL,
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HALT,
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NOPE
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};
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class VM {
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private:
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uint16_t regs[0xb];
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struct flags {
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uint8_t zf : 1;
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uint8_t cf : 1;
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};
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VMAddrSpace as;
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/*
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IMPLEMENTATIONS
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*/
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void exec_movi(void);
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void exec_movr(void);
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void exec_movm(void);
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void exec_getm(void);
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void exec_putm(void);
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void exec_addi(void);
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public:
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VM();
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VM(uint8_t *code, uint32_t codesize);
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void init_regs(void);
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void status(void);
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void run();
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};
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#endif |