dingusppc/ppcmemory.h
2019-08-03 02:59:42 +02:00

52 lines
1.4 KiB
C++

//DingusPPC - Prototype 5bf2
//Written by divingkatae
//(c)2018-20 (theweirdo)
//Please ask for permission
//if you want to distribute this.
//(divingkatae#1017 on Discord)
// The opcodes for the processor - ppcopcodes.cpp
#ifndef PPCMEMORY_H
#define PPCMEMORY_H
#include <vector>
#include <array>
/** generic PowerPC BAT descriptor (MMU internal state) */
typedef struct PPC_BAT_entry {
uint8_t access; /* copy of Vs | Vp bits */
uint8_t prot; /* copy of PP bits */
uint32_t phys_hi; /* high-order bits for physical address generation */
uint32_t lo_mask; /* mask for low-order logical address bits */
uint32_t bepi; /* copy of Block effective page index */
} PPC_BAT_entry;
extern uint32_t bat_srch;
extern uint32_t bepi_chk;
extern uint32_t msr_ir_test;
extern uint32_t msr_dr_test;
extern uint32_t msr_ip_test;
extern unsigned char * grab_macmem_ptr;
/**
struct pte {
uint32_t page_index_no;
uint32_t entry[];
pte *next;
} PTE;
**/
extern void ibat_update(uint32_t bat_reg);
extern void dbat_update(uint32_t bat_reg);
extern void msr_status_update();
extern void address_quickinsert_translate(uint32_t value_insert, uint32_t address_grab, uint8_t num_bytes);
extern void address_quickgrab_translate(uint32_t address_grab, uint8_t num_bytes);
extern void quickinstruction_translate(uint32_t address_grab);
#endif // PPCMEMORY_H