62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
#include "toy.h"
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#include "./debug/debug.h"
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#include<assert.h>
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#ifndef NDEBUG
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#define DEBUG
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#endif
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int main(int argc, char *argv[])
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{
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uint16_t ram[RAM_SIZE];
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uint16_t ir=0; //Instruction Register
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uint8_t op_code; //CPU Operation Code
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uint16_t pc = 0; //Program Counter
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int data_addr=0; //Adress of the 2nd operator (1. is ACCU)
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int quit='n'; //Helper for program-flow exit (not part of CPU)
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bool run = true; //CPU halt and reset.(make better a coredamp befor)
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printf("\n+++++++++++++++++++++++++++++++++++++++++++++++\n+Boot: "CPU_TYPE
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" wite %zu x %zu Bit RAM.+\n+++++++++++++++++++++++++++++++++++++++++++++++\n\n"
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,(sizeof(ram)/sizeof(ram[0])),sizeof(ram[0])*8);
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if(initialise_ram(ram,argc,argv)==-1) return 1; //load data from command line into RAM
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//(-1 in case of error,
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//else number of correct read worts)
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while(run && pc<(RAM_SIZE-1))
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{
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ir = ram[pc]; //get instruction from RAM
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op_code = get_opcode(ir); //determine the instruction form
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data_addr=find_data(ir); //locate the 2nd operand (ignord from OP_Code 8 to 15)
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//Handele user output
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printf("\ninstruction: ");
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fprintBits(sizeof(*ram), ram+pc,stdout);
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printf("OP Code: %"PRIu8"\t",op_code);
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printf("Adresse: %u\n",data_addr);
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printf("\ninstruction result:\n");
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//CPU control flow
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if(execute(op_code,data_addr,ram)) //EXECUTE instruction, jump if ALU says
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pc=find_data(ram[pc]);
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else pc++;
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if(pc>4095) pc = pc % 4096; //TOY can only address 12 Bit
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//Handele user output
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printf("PROGRAM COUNTER: %" PRIu16 "\n",pc);
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printf("\x1b[32m \n(n)ext step or (q)uit or (c)oredump ?\n \x1b[0m");
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//handel program flow
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while((quit = getchar()) != '\n' && quit != EOF)
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{
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if(quit == 'c') makeHexDump(true,ram);
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else if(quit == 'q') run = false;
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}
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}
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return 0;
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}
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