mirror of
https://github.com/dingusdev/dingusppc.git
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35c86ad6bf
Result of running IWYU (https://include-what-you-use.org/) and applying most of the suggestions about unncessary includes and forward declarations. Was motivated by observing that <thread> was being included in ppcopcodes.cpp even though it was unused (found while researching the use of threads), but seems generally good to help with build times and correctness.
93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-22 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef MEMORY_CONTROLLER_BASE_H
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#define MEMORY_CONTROLLER_BASE_H
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#include <cinttypes>
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#include <string>
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#include <vector>
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class MMIODevice;
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// Common DRAM capacities.
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enum {
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DRAM_CAP_2MB = (1 << 21),
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DRAM_CAP_4MB = (1 << 22),
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DRAM_CAP_8MB = (1 << 23),
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DRAM_CAP_16MB = (1 << 24),
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DRAM_CAP_32MB = (1 << 25),
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DRAM_CAP_64MB = (1 << 26),
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DRAM_CAP_128MB = (1 << 27),
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};
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enum RangeType {
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RT_ROM = 1, /* read-only memory */
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RT_RAM = 2, /* random access memory */
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RT_MMIO = 4, /* memory mapped I/O */
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RT_MIRROR = 8 /* region mirror (content of another region is acessible
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at some other address) */
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};
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/** Defines the format for the address map entry. */
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typedef struct AddressMapEntry {
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uint32_t start; /* first address of the corresponding range */
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uint32_t end; /* last address of the corresponding range */
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uint32_t mirror; /* mirror address for RT_MIRROR */
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uint32_t type; /* range type */
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MMIODevice* devobj; /* pointer to device object */
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unsigned char* mem_ptr; /* direct pointer to data for memory objects */
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} AddressMapEntry;
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/** Base class for memory controllers. */
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class MemCtrlBase {
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public:
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MemCtrlBase() = default;
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virtual ~MemCtrlBase();
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virtual bool add_rom_region(uint32_t start_addr, uint32_t size);
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virtual bool add_ram_region(uint32_t start_addr, uint32_t size);
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virtual bool add_mem_mirror(uint32_t start_addr, uint32_t dest_addr);
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virtual bool add_mmio_region(uint32_t start_addr, uint32_t size, MMIODevice* dev_instance);
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virtual bool remove_mmio_region(uint32_t start_addr, uint32_t size, MMIODevice* dev_instance);
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virtual bool set_data(uint32_t reg_addr, const uint8_t* data, uint32_t size);
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AddressMapEntry* find_range(uint32_t addr);
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AddressMapEntry* find_range_exact(uint32_t addr, uint32_t size, MMIODevice* dev_instance);
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AddressMapEntry* find_range_contains(uint32_t addr, uint32_t size);
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AddressMapEntry* find_range_overlaps(uint32_t addr, uint32_t size);
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bool is_range_free(uint32_t addr, uint32_t size);
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AddressMapEntry* find_rom_region();
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protected:
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bool add_mem_region(
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uint32_t start_addr, uint32_t size, uint32_t dest_addr, uint32_t type, uint8_t init_val);
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private:
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std::vector<uint8_t*> mem_regions;
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std::vector<AddressMapEntry*> address_map;
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};
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#endif /* MEMORY_CONTROLLER_BASE_H */
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