mirror of
https://github.com/dingusdev/dingusppc.git
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60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-20 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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// The opcodes for the processor - ppcopcodes.cpp
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#ifndef PPCMEMORY_H
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#define PPCMEMORY_H
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#include <cinttypes>
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#include <vector>
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#include <array>
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/* Uncomment this to exhaustive MMU integrity checks. */
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//#define MMU_INTEGRITY_CHECKS
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/** generic PowerPC BAT descriptor (MMU internal state) */
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typedef struct PPC_BAT_entry {
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uint8_t access; /* copy of Vs | Vp bits */
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uint8_t prot; /* copy of PP bits */
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uint32_t phys_hi; /* high-order bits for physical address generation */
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uint32_t lo_mask; /* mask for low-order logical address bits */
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uint32_t bepi; /* copy of Block effective page index */
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} PPC_BAT_entry;
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extern void ibat_update(uint32_t bat_reg);
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extern void dbat_update(uint32_t bat_reg);
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extern void ppc_set_cur_instruction(const uint8_t* ptr);
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extern void mem_write_byte(uint32_t addr, uint8_t value);
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extern void mem_write_word(uint32_t addr, uint16_t value);
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extern void mem_write_dword(uint32_t addr, uint32_t value);
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extern void mem_write_qword(uint32_t addr, uint64_t value);
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extern uint8_t mem_grab_byte(uint32_t addr);
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extern uint16_t mem_grab_word(uint32_t addr);
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extern uint32_t mem_grab_dword(uint32_t addr);
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extern uint64_t mem_grab_qword(uint32_t addr);
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extern uint64_t mem_read_dbg(uint32_t virt_addr, uint32_t size);
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extern uint8_t* quickinstruction_translate(uint32_t address_grab);
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#endif // PPCMEMORY_H
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