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This commit is contained in:
Robert 2021-07-12 05:26:38 +02:00
parent 54d6fc8c1e
commit ad4eafa882
9 changed files with 122 additions and 71 deletions
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15
include/cpu.hpp
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@ -6,6 +6,8 @@
class Bus;
// Structure to represent a register (register = 16 bits, but split into 2 "sub registers" of 8 bits).
// I also store the names of the regs for debug purposes
struct Register
{
union
@ -20,6 +22,7 @@ struct Register
char name[3];
};
// Convenience structure for the Interrupts
typedef union {
BYTE b;
struct
@ -46,6 +49,7 @@ typedef union
} f;
} StatusFlag;
// Read about opcode decoding, the link is in the cpu.cpp file
typedef union
{
BYTE b;
@ -66,6 +70,8 @@ typedef union
} pq;
} Opcode;
// Contains everything related to the CPU
class CPU
{
public:
@ -100,11 +106,12 @@ public:
bool stopped;
bool halted;
bool justHaltedWithDI;
bool justHaltedWithDI; // I don't even know
private:
void WriteToRegister(BYTE reg, BYTE val);
void WriteToRegister(BYTE reg, BYTE val); // The cycles, the god DAMN CPU CYCLES
BYTE ReadFromRegister(BYTE reg);
void ALU(BYTE operation, BYTE operand);
void CBPrefixed();
void ALU(BYTE operation, BYTE operand); // Handle any ALU related instructions
void CBPrefixed(); // Handle all CB prefixed instructions
};