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50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
/* SPDX-License-Identifier: MIT */
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#ifndef RGBDS_ASM_RPN_H
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#define RGBDS_ASM_RPN_H
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#include <stdint.h>
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#include <string>
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#include "linkdefs.hpp"
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struct Symbol;
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struct Expression {
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int32_t val; // If the expression's value is known, it's here
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std::string *reason; // Why the expression is not known, if it isn't
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bool isKnown; // Whether the expression's value is known at assembly time
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bool isSymbol; // Whether the expression represents a symbol suitable for const diffing
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std::vector<uint8_t> *rpn; // Bytes serializing the RPN expression
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uint32_t rpnPatchSize; // Size the expression will take in the object file
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int32_t getConstVal() const;
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Symbol const *symbolOf() const;
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bool isDiffConstant(Symbol const *symName) const;
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};
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void rpn_Number(Expression &expr, uint32_t val);
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void rpn_Symbol(Expression &expr, char const *symName);
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void rpn_LOGNOT(Expression &expr, const Expression &src);
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void rpn_BinaryOp(enum RPNCommand op, Expression &expr, const Expression &src1, const Expression &src2);
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void rpn_HIGH(Expression &expr, const Expression &src);
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void rpn_LOW(Expression &expr, const Expression &src);
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void rpn_ISCONST(Expression &expr, const Expression &src);
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void rpn_NEG(Expression &expr, const Expression &src);
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void rpn_NOT(Expression &expr, const Expression &src);
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void rpn_BankSymbol(Expression &expr, char const *symName);
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void rpn_BankSection(Expression &expr, char const *sectionName);
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void rpn_BankSelf(Expression &expr);
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void rpn_SizeOfSection(Expression &expr, char const *sectionName);
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void rpn_StartOfSection(Expression &expr, char const *sectionName);
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void rpn_SizeOfSectionType(Expression &expr, enum SectionType type);
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void rpn_StartOfSectionType(Expression &expr, enum SectionType type);
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void rpn_Free(Expression &expr);
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void rpn_CheckHRAM(Expression &expr, const Expression &src);
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void rpn_CheckRST(Expression &expr, const Expression &src);
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void rpn_CheckNBit(Expression const &expr, uint8_t n);
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#endif // RGBDS_ASM_RPN_H
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