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Insert a user help function (-h)

This commit is contained in:
lux 2017-08-17 20:40:25 +02:00
parent 99a8dc35a7
commit a907e23f9c
3 changed files with 52 additions and 1 deletions
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11
ram.toy Normal file
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@ -0,0 +1,11 @@
0001000000001010
0011000000001000
0000000000001010
1011000000000000
0010000000000000
0000000000000000
0000000000000101
0000000000000111
0001001110001000
0000000000000000
0000000000000000

40
src/toy.c
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@ -1,5 +1,36 @@
#include "toy.h"
void print_instructionSet(void)
{
printf("Boot process aborted!\n");
printf("TOY-CPU Instruction Set:\n\n");
printf("OP_Code 0 (0000b):\t STORE<12 BIT ADDRESS>\n");
printf("OP_Code 1 (0001b):\t LOAD\t<12 BIT ADDRESS>\n");
printf("OP_Code 2 (0010b):\t JMPZ\t<12 BIT ADDRESS>\n");
printf("OP_Code 3 (0011b):\t ADD\t<12 BIT ADDRESS>\n");
printf("OP_Code 4 (0100b):\t SUB\t<12 BIT ADDRESS>\n");
printf("OP_Code 5 (0101b):\t OR\t<12 BIT ADDRESS>\n");
printf("OP_Code 6 (0110b):\t AND\t<12 BIT ADDRESS>\n");
printf("OP_Code 7 (0111b):\t XOR\t<12 BIT ADDRESS>\n");
printf("OP_Code 8 (1000b):\t NOT\n");
printf("OP_Code 9 (1001b):\t INC\n");
printf("OP_Code 10 (1010b):\t DEC\n");
printf("OP_Code 11 (1011b):\t ZERO\n");
printf("OP_Code 12 (1100b):\t NOP\n");
printf("OP_Code 13 (1101b):\t NOP\n");
printf("OP_Code 14 (1110b):\t NOP\n");
printf("OP_Code 15 (1111b):\t NOP\n\n");
printf("BIT\t 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0\n"
"\t--------------------------------------\n"
"\t| OP-CODE |\t\tADDRESS\t |\n"
"\t--------------------------------------\n\n");
printf("This machine has the following registers:\n"
"16 BIT Instruction Register(4 BIT OP, 12 BIT Adr)\n"
"16 BIT Accumulator\n"
"12 BIT Program Counter\n");
}
//gibt Anzahl der erfolgreich gelesenen Maschinenworte zurück(-1 im Fehlerfall).
int initialise_ram(uint16_t *ram, int argc, char **argv )
{
@ -14,7 +45,7 @@ int initialise_ram(uint16_t *ram, int argc, char **argv )
if(argc<2)
{
fprintf(stderr,"%s","no \".toy\" input file!\n"
"interpretation terminated.\n");
"interpretation terminated. (press -h for help)\n");
return -1;
}
if(argc >2)
@ -23,11 +54,18 @@ int initialise_ram(uint16_t *ram, int argc, char **argv )
return -1;
}
if(strcmp(argv[1],"-h")==0)
{
print_instructionSet();
return -1;
}
if(!(fp=fopen(argv[1],"rb")))
{
fprintf(stderr,"%s","open input stream fault !\n");
return -1;
}
// initialise Toy-RAM
do

2
src/toy.h
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@ -5,12 +5,14 @@
#include <inttypes.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#define CPU_TYPE "Koopman_TOY_CPU"
#define RAM_SIZE 4096
#define CPU_WORD_SIZE 16
void print_instructionSet(void);
int initialise_ram(uint16_t *ram, int argc, char **argv );
uint8_t get_opcode(uint16_t instruction);
uint16_t find_data(uint16_t instruction);