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Max Freedom Pollard
631ef003e7
RGBASM computes these with unsigned arithmetic and casts back, since signed overflow is UB in C++, but RGBLINK's RPN evaluator used `int32_t` directly, so `src/link/patch.cpp` tripped UBSan on lines 117, 121, and 124. Share the three operators through `opmath.cpp` so both evaluators stay in step.
28 lines
796 B
C++
28 lines
796 B
C++
// SPDX-License-Identifier: MIT
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#ifndef RGBDS_OP_MATH_HPP
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#define RGBDS_OP_MATH_HPP
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#include <stdint.h>
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int32_t op_add(int32_t augend, int32_t addend);
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int32_t op_sub(int32_t minuend, int32_t subtrahend);
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int32_t op_mul(int32_t multiplicand, int32_t multiplier);
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int32_t op_divide(int32_t dividend, int32_t divisor);
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int32_t op_modulo(int32_t dividend, int32_t divisor);
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int32_t op_exponent(int32_t base, uint32_t power);
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int32_t op_shift_left(int32_t value, int32_t amount);
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int32_t op_shift_right(int32_t value, int32_t amount);
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int32_t op_shift_right_unsigned(int32_t value, int32_t amount);
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int32_t op_neg(int32_t value);
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int32_t op_high(int32_t value);
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int32_t op_low(int32_t value);
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int32_t op_bitwidth(int32_t value);
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int32_t op_tzcount(int32_t value);
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#endif // RGBDS_OP_MATH_HPP
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