36 lines
838 B
C
36 lines
838 B
C
/**
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* This file is part of the Fun programming language.
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* https://hanez.org/project/fun/
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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 ISC license.
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* https://opensource.org/license/isc-license-txt
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*/
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/**
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* @file abs.c
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* @brief Implements the OP_ABS opcode for absolute value in the VM.
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*
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* This file handles the OP_ABS instruction, which computes the absolute value
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* of an integer.
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*
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* Behavior:
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* - Pops value from stack
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* - Pushes |value|
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*
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* Error Handling:
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* - Exits if not integer
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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_ABS: {
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Value x = pop_value(vm);
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if (x.type != VAL_INT) { fprintf(stderr, "ABS expects int\n"); exit(1); }
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int64_t v = x.i;
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if (v < 0) v = -v;
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push_value(vm, make_int(v));
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free_value(x);
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break;
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}
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