118 lines
2.8 KiB
C++
118 lines
2.8 KiB
C++
|
struct Flags {
|
||
|
|
bool n, v, d, i, z, c;
|
||
|
|
|
||
|
|
inline operator unsigned() {
|
||
|
|
return (n << 7) | (v << 6) | (d << 3) | (i << 2) | (z << 1) | (c << 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
inline Flags& operator=(uint8 data) {
|
||
|
|
n = data & 0x80; v = data & 0x40;
|
||
|
|
d = data & 0x08; i = data & 0x04; z = data & 0x02; c = data & 0x01;
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Registers {
|
||
|
|
uint8 mdr;
|
||
|
|
uint16 pc;
|
||
|
|
uint8 a, x, y, s;
|
||
|
|
Flags p;
|
||
|
|
} regs;
|
||
|
|
|
||
|
|
struct Register16 {
|
||
|
|
union {
|
||
|
|
uint16 w;
|
||
|
|
struct { uint8 order_lsb2(l, h); };
|
||
|
|
};
|
||
|
|
} abs, iabs;
|
||
|
|
|
||
|
|
uint8 rd;
|
||
|
|
uint8 zp;
|
||
|
|
uint16 aa;
|
||
|
|
|
||
|
|
//interrupt.cpp
|
||
|
|
void interrupt();
|
||
|
|
void interrupt_test();
|
||
|
|
void set_nmi_line(bool);
|
||
|
|
void set_irq_line(bool);
|
||
|
|
void set_irq_apu_line(bool);
|
||
|
|
|
||
|
|
//opcodes.cpp
|
||
|
|
void opf_asl();
|
||
|
|
void opf_adc();
|
||
|
|
void opf_and();
|
||
|
|
void opf_bit();
|
||
|
|
void opf_cmp();
|
||
|
|
void opf_cpx();
|
||
|
|
void opf_cpy();
|
||
|
|
void opf_dec();
|
||
|
|
void opf_eor();
|
||
|
|
void opf_inc();
|
||
|
|
void opf_lda();
|
||
|
|
void opf_ldx();
|
||
|
|
void opf_ldy();
|
||
|
|
void opf_lsr();
|
||
|
|
void opf_ora();
|
||
|
|
void opf_rla();
|
||
|
|
void opf_rol();
|
||
|
|
void opf_ror();
|
||
|
|
void opf_rra();
|
||
|
|
void opf_sbc();
|
||
|
|
void opf_sla();
|
||
|
|
void opf_sra();
|
||
|
|
|
||
|
|
void opi_branch(bool condition);
|
||
|
|
void opi_clear_flag(bool &flag);
|
||
|
|
void opi_decrement(uint8 &r);
|
||
|
|
void opi_increment(uint8 &r);
|
||
|
|
void opi_pull(uint8 &r);
|
||
|
|
void opi_push(uint8 &r);
|
||
|
|
template<void (CPU::*op)()> void opi_read_absolute();
|
||
|
|
template<void (CPU::*op)()> void opi_read_absolute_x();
|
||
|
|
template<void (CPU::*op)()> void opi_read_absolute_y();
|
||
|
|
template<void (CPU::*op)()> void opi_read_immediate();
|
||
|
|
template<void (CPU::*op)()> void opi_read_indirect_zero_page_x();
|
||
|
|
template<void (CPU::*op)()> void opi_read_indirect_zero_page_y();
|
||
|
|
template<void (CPU::*op)()> void opi_read_zero_page();
|
||
|
|
template<void (CPU::*op)()> void opi_read_zero_page_x();
|
||
|
|
template<void (CPU::*op)()> void opi_read_zero_page_y();
|
||
|
|
template<void (CPU::*op)()> void opi_rmw_absolute();
|
||
|
|
template<void (CPU::*op)()> void opi_rmw_absolute_x();
|
||
|
|
template<void (CPU::*op)()> void opi_rmw_zero_page();
|
||
|
|
template<void (CPU::*op)()> void opi_rmw_zero_page_x();
|
||
|
|
void opi_set_flag(bool &flag);
|
||
|
|
template<void (CPU::*op)()> void opi_shift();
|
||
|
|
void opi_store_absolute(uint8 &r);
|
||
|
|
void opi_store_absolute_x(uint8 &r);
|
||
|
|
void opi_store_absolute_y(uint8 &r);
|
||
|
|
void opi_store_indirect_zero_page_x(uint8 &r);
|
||
|
|
void opi_store_indirect_zero_page_y(uint8 &r);
|
||
|
|
void opi_store_zero_page(uint8 &r);
|
||
|
|
void opi_store_zero_page_x(uint8 &r);
|
||
|
|
void opi_store_zero_page_y(uint8 &r);
|
||
|
|
void opi_transfer(uint8 &s, uint8 &d, bool flag);
|
||
|
|
|
||
|
|
void op_brk();
|
||
|
|
void op_jmp_absolute();
|
||
|
|
void op_jmp_indirect_absolute();
|
||
|
|
void op_jsr_absolute();
|
||
|
|
void op_nop();
|
||
|
|
void op_php();
|
||
|
|
void op_plp();
|
||
|
|
void op_rti();
|
||
|
|
void op_rts();
|
||
|
|
|
||
|
|
void opill_arr_immediate();
|
||
|
|
void opill_nop_absolute();
|
||
|
|
void opill_nop_absolute_x();
|
||
|
|
void opill_nop_immediate();
|
||
|
|
void opill_nop_implied();
|
||
|
|
void opill_nop_zero_page();
|
||
|
|
void opill_nop_zero_page_x();
|
||
|
|
|
||
|
|
//exec.cpp
|
||
|
|
void op_exec();
|
||
|
|
|
||
|
|
//disassembler.cpp
|
||
|
|
string disassemble();
|