42 lines
1.1 KiB
C
42 lines
1.1 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 load_local.c
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* @brief Implements the OP_LOAD_LOCAL opcode for loading local variables in the VM.
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*
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* This file handles the OP_LOAD_LOCAL instruction, which loads a local variable
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* onto the stack using its index.
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*
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* Behavior:
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* - Loads the local variable at the specified index.
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* - Pushes the value onto the stack.
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*
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* Error Handling:
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* - Exits with an error if the index is out of bounds.
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*
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* Example:
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* // Bytecode: OP_LOAD_LOCAL 0
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* // Stack before: []
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* // Stack after: [local_value]
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*
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* @author Johannes Findeisen
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* @date 2025-10-16
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*/
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case OP_LOAD_LOCAL: {
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int slot = inst.operand;
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if (slot < 0 || slot >= MAX_FRAME_LOCALS) {
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fprintf(stderr, "Runtime error: local slot out of range\n");
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exit(1);
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}
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Value val = copy_value(&f->locals[slot]);
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push_value(vm, val);
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break;
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}
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