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59 lines
2.5 KiB
C++
59 lines
2.5 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 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
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bool isSymbol; // Whether the expression represents a symbol
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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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};
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// Determines if an expression is known at assembly time
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static inline bool rpn_isKnown(struct Expression const *expr)
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{
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return expr->isKnown;
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}
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// Determines if an expression is a symbol suitable for const diffing
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static inline bool rpn_isSymbol(const struct Expression *expr)
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{
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return expr->isSymbol;
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}
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void rpn_Symbol(struct Expression *expr, char const *symName);
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void rpn_Number(struct Expression *expr, uint32_t i);
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void rpn_LOGNOT(struct Expression *expr, const struct Expression *src);
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struct Symbol const *rpn_SymbolOf(struct Expression const *expr);
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bool rpn_IsDiffConstant(struct Expression const *src, struct Symbol const *symName);
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void rpn_BinaryOp(enum RPNCommand op, struct Expression *expr,
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const struct Expression *src1,
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const struct Expression *src2);
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void rpn_HIGH(struct Expression *expr, const struct Expression *src);
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void rpn_LOW(struct Expression *expr, const struct Expression *src);
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void rpn_ISCONST(struct Expression *expr, const struct Expression *src);
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void rpn_NEG(struct Expression *expr, const struct Expression *src);
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void rpn_NOT(struct Expression *expr, const struct Expression *src);
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void rpn_BankSymbol(struct Expression *expr, char const *symName);
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void rpn_BankSection(struct Expression *expr, char const *sectionName);
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void rpn_BankSelf(struct Expression *expr);
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void rpn_SizeOfSection(struct Expression *expr, char const *sectionName);
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void rpn_StartOfSection(struct Expression *expr, char const *sectionName);
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void rpn_SizeOfSectionType(struct Expression *expr, enum SectionType type);
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void rpn_StartOfSectionType(struct Expression *expr, enum SectionType type);
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void rpn_Free(struct Expression *expr);
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void rpn_CheckHRAM(struct Expression *expr, const struct Expression *src);
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void rpn_CheckRST(struct Expression *expr, const struct Expression *src);
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void rpn_CheckNBit(struct Expression const *expr, uint8_t n);
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int32_t rpn_GetConstVal(struct Expression const *expr);
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#endif // RGBDS_ASM_RPN_H
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