49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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* This file is part of the Fun programming language.
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* https://fun-lang.xyz/
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*
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* Copyright 2025 Johannes Findeisen <you@hanez.org>
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* Licensed under the terms of the Apache-2.0 license.
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* https://opensource.org/license/apache-2-0
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*/
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/**
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* @file mod.c
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* @brief Implements the OP_MOD opcode for modulo operation in the VM.
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*
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* This file handles the OP_MOD instruction, which computes the modulo of two integer values.
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* The values are popped from the stack, and the result is pushed back.
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*
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* Behavior:
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* - Pops two integer values from the stack.
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* - Computes the modulo of the first value by the second.
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* - Pushes the result onto the stack.
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*
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* Error Handling:
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* - Exits with an error if the operands are not integers.
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* - Exits with an error if the second operand is zero.
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*
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* Example:
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* // Bytecode: OP_MOD
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* // Stack before: [10, 3]
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* // Stack after: [1]
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*/
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case OP_MOD: {
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Value b = pop_value(vm);
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Value a = pop_value(vm);
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if (a.type != VAL_INT || b.type != VAL_INT) {
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fprintf(stderr, "Runtime type error: MOD expects ints, got %s and %s\n",
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value_type_name(a.type), value_type_name(b.type));
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exit(1);
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}
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if (b.i == 0) {
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fprintf(stderr, "Runtime error: modulo by zero\n");
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exit(1);
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}
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Value res = make_int(a.i % b.i);
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free_value(a);
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free_value(b);
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push_value(vm, res);
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break;
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}
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