Simpletron Complete Program in C [Solved]
The Simpletron
runs programs written in the only language it directly understands that is, Simpletron Machine
Language, or SML for short. All
information in the Simpletron is handled in terms of words. A word is a signed four-digit decimal
number such as +1009 +1010 +2009 +3110 and so on. The Simpletron is equipped with a 100-
word memory and these words are referenced by their location numbers 00, 01, …, 99.
Before running an SML program, we must load or place the program into memory or the array of the program considered it as the RAM of the computer. The first
instruction of every SML program is always placed in location 00.
Each instruction written in SML occupies one word of the Simpletron’s memory, so instructions are four-digit decimal numbers. Each location in the Simpletron’s memory may contain either an instruction, a data value used by a program or an unused (and hence undefined) area of memory.
For more details, you can read the section 7.27 Building your own computer of Deitel-C how to Program 7th edition.
We have to provide an SML file to this program to execute as a command-line argument. As shown in the screenshot in the output section.
Each instruction written in SML occupies one word of the Simpletron’s memory, so instructions are four-digit decimal numbers. Each location in the Simpletron’s memory may contain either an instruction, a data value used by a program or an unused (and hence undefined) area of memory.
For more details, you can read the section 7.27 Building your own computer of Deitel-C how to Program 7th edition.
We have to provide an SML file to this program to execute as a command-line argument. As shown in the screenshot in the output section.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 | #include<stdio.h> #include<stdlib.h> void displayMemory(int memory[],int size){ int i; printf("\n\n****SML file Loaded in Memory****\n\n"); for(i=0;i<size;i++){ printf(" %+05d ",memory[i]); if((i+1)%10==0){ printf("\n"); } } printf("\n"); } int main(int argCount, char *argArr[]){ int memory[100]={0},i=0,opcode=0,address=0,accumulator=0,counter=0; FILE *file; if(argCount==2){ if((file=fopen(argArr[1],"r"))==NULL){ printf("\nProvided SML File is Not Opening\n"); }else{ while(!feof(file)){ fscanf(file,"%d",&memory[i]); i++; } fclose(file); } i=0; }else{ printf("\nNo SML file provided to RUN\n"); exit(0); } displayMemory(memory,100); while(memory[i]!=4300){ opcode = memory[i]/100; address = memory[i]%100; counter++; printf("\nAccumulator : %d",accumulator); printf("\nOpcode : %d",opcode); printf("\nOperand : %d",address); printf("\nCounter : %d\n",counter); switch(opcode){ case 10 : printf("Opcode is 10, So Enter a number : "); scanf("%d",&memory[address]); break; case 11 : printf("%d",memory[address]); break; case 20 : accumulator = memory[address]; break; case 21 : memory[address] = accumulator; break; case 30 : accumulator += memory[address]; break; case 31 : accumulator -= memory[address]; break; case 32 : accumulator /= memory[address]; break; case 33 : accumulator *= memory[address]; break; case 40 : i = address; continue; break; case 41 : if(accumulator<0){ i = address; continue; } break; case 42 : if(accumulator==0){ i = address; continue; } break; } i++; } return 0; } |
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