ppcd.h

// See some documentation in CPP file.

#pragma once

// Instruction class
#define PPC_DISA_OTHER      0x0000  // No additional information
#define PPC_DISA_64         0x0001  // 64-bit architecture only
#define PPC_DISA_INTEGER    0x0002  // Integer-type instruction
#define PPC_DISA_BRANCH     0x0004  // Branch instruction
#define PPC_DISA_LDST       0x0008  // Load-store instruction
#define PPC_DISA_STRING     0x0010  // Load-store string/multiple
#define PPC_DISA_FPU        0x0020  // Floating-point instruction
#define PPC_DISA_OEA        0x0040  // Supervisor level
#define PPC_DISA_OPTIONAL   0x0200  // Optional
#define PPC_DISA_BRIDGE     0x0400  // Optional 64-bit bridge
#define PPC_DISA_SPECIFIC   0x0800  // Implementation-specific
#define PPC_DISA_ILLEGAL    0x1000  // Illegal
#define PPC_DISA_SIMPLIFIED 0x8000  // Simplified mnemonic is used

typedef struct PPCD_CB
{
	u64     pc;                     // Program counter (input)
	u32     instr;                  // Instruction (input)
	char    mnemonic[16];           // Instruction mnemonic.
	char    operands[64];           // Instruction operands.
	u32     immed;                  // Immediate value (displacement for load/store, immediate operand for arithm./logic).
	int     r[4];                   // Index value for operand registers and immediates.
	u64     target;                 // Target address for branch instructions 
	u64		mask;					// Mask for RLWINM - like instructions
	int     iclass;                 // One or combination of PPC_DISA_* flags.
} PPCD_CB;

struct Flags {
	u8 outputAddress : 1;
	u8 outputBinary : 1;
	u8 outputMnemonics : 1;
	u8 outputOperands : 1;
};

void    PPCDisasm(PPCD_CB *disa);
char*   PPCDisasmSimple(u64 pc, u32 instr);