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https://github.com/gbdev/rgbds.git
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2706f94788
- FIX: `Label & const` was not actually doing the `& const` masking (fixes #1446) - ADD: `LOW(Label)` can be constant if `Label` is aligned to 8 or more bits (resolves #1444) - ADD: `!expr` can be constant 0 if `expr` has any non-zero bits (resolves #1447) - `LOW()` and `HIGH()` have their own RPN operator values (resolves #1445) The change to RPN values means that the object file version was incremented. This also refactors unary operators and functions, combining their evaluation similarly to binary ones.
136 lines
2.8 KiB
C++
136 lines
2.8 KiB
C++
/* SPDX-License-Identifier: MIT */
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#ifndef RGBDS_LINKDEFS_HPP
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#define RGBDS_LINKDEFS_HPP
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#include <stdint.h>
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#include <string>
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#include "helpers.hpp" // assume
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#define RGBDS_OBJECT_VERSION_STRING "RGB9"
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#define RGBDS_OBJECT_REV 11U
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enum AssertionType { ASSERT_WARN, ASSERT_ERROR, ASSERT_FATAL };
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enum RPNCommand {
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RPN_ADD = 0x00,
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RPN_SUB = 0x01,
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RPN_MUL = 0x02,
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RPN_DIV = 0x03,
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RPN_MOD = 0x04,
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RPN_NEG = 0x05,
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RPN_EXP = 0x06,
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RPN_OR = 0x10,
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RPN_AND = 0x11,
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RPN_XOR = 0x12,
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RPN_NOT = 0x13,
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RPN_LOGAND = 0x21,
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RPN_LOGOR = 0x22,
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RPN_LOGNOT = 0x23,
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RPN_LOGEQ = 0x30,
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RPN_LOGNE = 0x31,
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RPN_LOGGT = 0x32,
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RPN_LOGLT = 0x33,
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RPN_LOGGE = 0x34,
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RPN_LOGLE = 0x35,
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RPN_SHL = 0x40,
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RPN_SHR = 0x41,
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RPN_USHR = 0x42,
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RPN_BANK_SYM = 0x50,
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RPN_BANK_SECT = 0x51,
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RPN_BANK_SELF = 0x52,
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RPN_SIZEOF_SECT = 0x53,
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RPN_STARTOF_SECT = 0x54,
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RPN_SIZEOF_SECTTYPE = 0x55,
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RPN_STARTOF_SECTTYPE = 0x56,
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RPN_HRAM = 0x60,
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RPN_RST = 0x61,
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RPN_HIGH = 0x70,
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RPN_LOW = 0x71,
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RPN_CONST = 0x80,
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RPN_SYM = 0x81
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};
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enum SectionType {
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SECTTYPE_WRAM0,
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SECTTYPE_VRAM,
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SECTTYPE_ROMX,
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SECTTYPE_ROM0,
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SECTTYPE_HRAM,
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SECTTYPE_WRAMX,
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SECTTYPE_SRAM,
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SECTTYPE_OAM,
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// In RGBLINK, this is used for "indeterminate" sections; this is primarily for SDCC
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// areas, which do not carry any section type info and must be told from the linker script
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SECTTYPE_INVALID
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};
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enum FileStackNodeType {
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NODE_REPT,
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NODE_FILE,
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NODE_MACRO,
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};
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// Nont-`const` members may be patched in RGBLINK depending on CLI flags
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extern struct SectionTypeInfo {
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std::string const name;
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uint16_t const startAddr;
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uint16_t size;
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uint32_t const firstBank;
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uint32_t lastBank;
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} sectionTypeInfo[SECTTYPE_INVALID];
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/*
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* Tells whether a section has data in its object file definition,
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* depending on type.
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* @param type The section's type
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* @return `true` if the section's definition includes data
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*/
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static inline bool sect_HasData(SectionType type) {
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assume(type != SECTTYPE_INVALID);
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return type == SECTTYPE_ROM0 || type == SECTTYPE_ROMX;
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}
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/*
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* Computes a memory region's end address (last byte), eg. 0x7FFF
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* @return The address of the last byte in that memory region
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*/
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static inline uint16_t endaddr(SectionType type) {
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return sectionTypeInfo[type].startAddr + sectionTypeInfo[type].size - 1;
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}
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/*
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* Computes a memory region's number of banks
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* @return The number of banks, 1 for regions without banking
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*/
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static inline uint32_t nbbanks(SectionType type) {
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return sectionTypeInfo[type].lastBank - sectionTypeInfo[type].firstBank + 1;
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}
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enum SectionModifier { SECTION_NORMAL, SECTION_UNION, SECTION_FRAGMENT };
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extern char const * const sectionModNames[];
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enum ExportLevel { SYMTYPE_LOCAL, SYMTYPE_IMPORT, SYMTYPE_EXPORT };
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enum PatchType {
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PATCHTYPE_BYTE,
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PATCHTYPE_WORD,
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PATCHTYPE_LONG,
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PATCHTYPE_JR,
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PATCHTYPE_INVALID
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};
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#endif // RGBDS_LINKDEFS_HPP
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