Newer
Older
use crate::cpu::Cpu;
pub const INSTRUCTIONS: [(fn(&mut Cpu), u8, &'static str); 256] = [
// 0x0 opcodes
(nop, 4, "NOP"),
(ld_bc_u16, 12, "LD BC, u16"),
(ld_mbc_a, 8, "LD [BC], A"),
(inc_bc, 8, "INC BC"),
(inc_b, 4, "INC B"),
(dec_b, 4, "DEC B"),
(ld_b_u8, 8, "LD B, u8"),
(rlca, 4, "RLCA"),
(ld_mu16_sp, 20, "LD [u16], SP"),
(add_hl_bc, 8, "ADD HL, BC"),
(dec_bc, 8, "DEC BC"),
(inc_c, 4, "INC C"),
(dec_c, 4, "DEC C"),
(ld_c_u8, 8, "LD C, u8"),
(dec_d, 4, "DEC D"),
(ld_d_u8, 8, "LD D, u8"),
(rla, 4, "RLA"),
(jr_i8, 12, "JR i8"),
(dec_e, 4, "DEC E"),
(ld_e_u8, 8, "LD E, u8"),
// 0x2 opcodes
(jr_nz_i8, 8, "JR NZ, i8"),
(ld_hl_u16, 12, "LD HL, u16"),
(ld_mhli_a, 8, "LD [HL+], A"),
(inc_hl, 8, "INC HL"),
(inc_h, 4, "INC H"),
(dec_h, 4, "DEC H"),
(ld_h_u8, 8, "LD H, u8"),
(ld_l_u8, 8, "LD L, u8"),
(cpl, 4, "CPL"),
// 0x3 opcodes
(jr_nc_i8, 8, "JR NC, i8"),
(ld_sp_u16, 12, "LD SP, u16"),
(ld_mhld_a, 8, "LD [HL-], A"),
(inc_sp, 8, "INC SP"),
(inc_mhl, 12, "INC [HL]"),
(ld_mhl_u8, 12, "LD [HL], u8 "),
(scf, 4, "SCF"),
(dec_a, 4, "DEC A"),
(ld_a_u8, 8, "LD A, u8"),
(ld_b_c, 4, "LD B, C"),
(ld_b_d, 4, "LD B, D"),
(ld_c_b, 4, "LD C, B"),
(ld_c_c, 4, "LD C, C"),
(ld_c_d, 4, "LD C, D"),
(ld_c_e, 4, "LD C, E"),
(ld_c_h, 4, "LD C, H"),
(ld_c_l, 4, "LD C, L"),
(ld_d_b, 4, "LD D, B"),
(ld_d_c, 4, "LD D, C"),
(ld_d_d, 4, "LD D, D"),
(ld_d_e, 4, "LD D, E"),
(ld_d_h, 4, "LD D, H"),
(ld_d_l, 4, "LD D, L"),
(ld_e_b, 4, "LD E, B"),
(ld_e_c, 4, "LD E, C"),
(ld_e_d, 4, "LD E, D"),
(ld_e_e, 4, "LD E, E"),
(ld_e_h, 4, "LD E, H"),
(ld_h_b, 4, "LD H, B"),
(ld_h_c, 4, "LD H, C"),
(ld_h_d, 4, "LD H, D"),
(ld_h_e, 4, "LD H, E"),
(ld_h_h, 4, "LD H, H"),
(ld_h_l, 4, "LD H, L"),
(ld_h_mhl, 8, "LD H, [HL]"),
(ld_l_b, 4, "LD L, B"),
(ld_l_c, 4, "LD L, C"),
(ld_l_d, 4, "LD L, D"),
(ld_l_e, 4, "LD L, E"),
(ld_l_h, 4, "LD L, H"),
(ld_l_l, 4, "LD L, L"),
(ld_mhl_b, 8, "LD [HL], B"),
(ld_mhl_c, 8, "LD [HL], C"),
(ld_mhl_d, 8, "LD [HL], D"),
(ld_mhl_h, 8, "LD [HL], H"),
(ld_mhl_l, 8, "LD [HL], L"),
(ld_mhl_a, 8, "LD [HL], A"),
(ld_a_b, 4, "LD A, B"),
(ld_a_c, 4, "LD A, C"),
(ld_a_e, 4, "LD A, E"),
(ld_a_h, 4, "LD A, H"),
(ld_a_l, 4, "LD A, L"),
(add_a_h, 4, "ADD A, H"),
(add_a_l, 4, "ADD A, L"),
(adc_a_b, 4, "ADC A, B"),
(adc_a_c, 4, "ADC A, C"),
(adc_a_d, 4, "ADC A, D"),
(adc_a_e, 4, "ADC A, E"),
(adc_a_h, 4, "ADC A, H"),
(adc_a_l, 4, "ADC A, L"),
(adc_a_mhl, 8, "ADC A, [HL]"),
(adc_a_a, 4, "ADC A, A"),
(sub_a_c, 4, "SUB A, C"),
(sub_a_d, 4, "SUB A, D"),
(sub_a_e, 4, "SUB A, E"),
(sub_a_h, 4, "SUB A, H"),
(sub_a_l, 4, "SUB A, L"),
(sub_a_mhl, 8, "SUB A, [HL]"),
(sbc_a_b, 4, "SBC A, B"),
(sbc_a_c, 4, "SBC A, C"),
(sbc_a_d, 4, "SBC A, D"),
(sbc_a_e, 4, "SBC A, E"),
(sbc_a_h, 4, "SBC A, H"),
(sbc_a_l, 4, "SBC A, L"),
(sbc_a_mhl, 8, "SBC A, [HL]"),
(sbc_a_a, 4, "SBC A, A"),
(and_a_d, 4, "AND A, D"),
(and_a_e, 4, "AND A, E"),
(and_a_h, 4, "AND A, H"),
(and_a_l, 4, "AND A, L"),
(and_a_mhl, 4, "AND A, [HL]"),
(and_a_a, 4, "AND A, A"),
(xor_a_d, 4, "XOR A, D"),
(xor_a_e, 4, "XOR A, E"),
(xor_a_h, 4, "XOR A, H"),
(xor_a_a, 4, "XOR A, A"),
// 0xb opcodes
(or_a_b, 4, "OR A, B"),
(or_a_c, 4, "OR A, C"),
(or_a_d, 4, "OR A, D"),
(or_a_e, 4, "OR A, E"),
(or_a_h, 4, "OR A, H"),
(or_a_l, 4, "OR A, L"),
(cp_a_b, 4, "CP A, B"),
(cp_a_c, 4, "CP A, C"),
(cp_a_d, 4, "CP A, D"),
(cp_a_e, 4, "CP A, E"),
(cp_a_h, 4, "CP A, H"),
(cp_a_l, 4, "CP A, L"),
// 0xc opcodes
(ret_nz, 8, "RET NZ"),
(pop_bc, 12, "POP BC"),
(jp_u16, 16, "JP u16"),
(call_nz_u16, 12, "CALL NZ, u16"),
(push_bc, 16, "PUSH BC"),
// 0xe opcodes
(ld_mff00u8_a, 12, "LD [FF00+u8], A"),
(illegal, 4, "ILLEGAL"),
(illegal, 4, "ILLEGAL"),
(illegal, 4, "ILLEGAL"),
(illegal, 4, "ILLEGAL"),
(illegal, 4, "ILLEGAL"),
// 0xf opcodes
(ld_a_mff00u8, 12, "LD A, [FF00+u8]"),
(illegal, 4, "ILLEGAL"),
(illegal, 4, "ILLEGAL"),
(cp_a_u8, 8, "CP A, u8"),
(rst_38h, 16, "RST 38h"),
];
pub const EXTENDED: [(fn(&mut Cpu), u8, &'static str); 256] = [
(rlc_b, 8, "RLC B"),
(rlc_c, 8, "RLC C"),
(rlc_d, 8, "RLC D"),
(rlc_e, 8, "RLC E"),
(rlc_h, 8, "RLC H"),
(rlc_l, 8, "RLC L"),
(rrc_b, 8, "RRC B"),
(rrc_c, 8, "RRC C"),
(rrc_d, 8, "RRC D"),
(rrc_e, 8, "RRC E"),
(rrc_h, 8, "RRC H"),
(rrc_l, 8, "RRC L"),
(rl_d, 8, "RL D"),
(rl_e, 8, "RL E"),
(rl_h, 8, "RL H"),
(rl_l, 8, "RL L"),
(rl_mhl, 16, "RL [HL]"),
(rl_a, 8, "RL A"),
(rr_b, 8, "RR B"),
(rr_c, 8, "RR C"),
(rr_d, 8, "RR D"),
(rr_h, 8, "RR H"),
(rr_l, 8, "RR L"),
(rr_mhl, 16, "RR [HL]"),
(rr_a, 8, "RR A"),
(sla_c, 8, "SLA C"),
(sla_d, 8, "SLA D"),
(sla_e, 8, "SLA E"),
(sla_h, 8, "SLA H"),
(sla_l, 8, "SLA L"),
(sla_mhl, 16, "SLA [HL]"),
(sra_b, 8, "SRA B"),
(sra_c, 8, "SRA C"),
(sra_d, 8, "SRA D"),
(sra_e, 8, "SRA E"),
(sra_h, 8, "SRA H"),
(sra_l, 8, "SRA L"),
(sra_mhl, 16, "SRA [HL]"),
(sra_a, 8, "SRA A"),
// 0x3 opcodes
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(swap_a, 8, "SWAP A"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
// 0x4 opcodes
(bit_0_b, 8, "BIT 0, B"),
(bit_0_c, 8, "BIT 0, C"),
(bit_0_e, 8, "BIT 0, E"),
(bit_0_h, 8, "BIT 0, H"),
(bit_0_l, 8, "BIT 0, L"),
(bit_0_mhl, 12, "BIT 0, [HL]"),
(bit_0_a, 8, "BIT 0, A"),
(bit_1_b, 8, "BIT 1, B"),
(bit_1_c, 8, "BIT 1, C"),
(bit_1_d, 8, "BIT 1, D"),
(bit_1_e, 8, "BIT 1, E"),
(bit_1_h, 8, "BIT 1, H"),
(bit_1_l, 8, "BIT 1, L"),
(bit_1_mhl, 12, "BIT 1, [HL]"),
(bit_1_a, 8, "BIT 1, A"),
(bit_2_b, 8, "BIT 2, B"),
(bit_2_c, 8, "BIT 2, C"),
(bit_2_d, 8, "BIT 2, D"),
(bit_2_e, 8, "BIT 2, E"),
(bit_2_h, 8, "BIT 2, H"),
(bit_2_l, 8, "BIT 2, L"),
(bit_2_mhl, 12, "BIT 2, [HL]"),
(bit_2_a, 8, "BIT 2, A"),
(bit_3_b, 8, "BIT 3, B"),
(bit_3_c, 8, "BIT 3, C"),
(bit_3_d, 8, "BIT 3, D"),
(bit_3_e, 8, "BIT 3, E"),
(bit_3_h, 8, "BIT 3, H"),
(bit_3_l, 8, "BIT 3, L"),
(bit_3_mhl, 12, "BIT 3, [HL]"),
(bit_3_a, 8, "BIT 3, A"),
(bit_4_b, 8, "BIT 4, B"),
(bit_4_c, 8, "BIT 4, C"),
(bit_4_d, 8, "BIT 4, D"),
(bit_4_e, 8, "BIT 4, E"),
(bit_4_h, 8, "BIT 4, H"),
(bit_4_l, 8, "BIT 4, L"),
(bit_4_mhl, 12, "BIT 4, [HL]"),
(bit_4_a, 8, "BIT 4, A"),
(bit_5_b, 8, "BIT 5, B"),
(bit_5_c, 8, "BIT 5, C"),
(bit_5_d, 8, "BIT 5, D"),
(bit_5_e, 8, "BIT 5, E"),
(bit_5_h, 8, "BIT 5, H"),
(bit_5_l, 8, "BIT 5, L"),
(bit_5_mhl, 12, "BIT 5, [HL]"),
(bit_5_a, 8, "BIT 5, A"),
(bit_6_b, 8, "BIT 6, B"),
(bit_6_c, 8, "BIT 6, C"),
(bit_6_d, 8, "BIT 6, D"),
(bit_6_e, 8, "BIT 6, E"),
(bit_6_h, 8, "BIT 6, H"),
(bit_6_l, 8, "BIT 6, L"),
(bit_6_mhl, 12, "BIT 6, [HL]"),
(bit_6_a, 8, "BIT 6, A"),
(bit_7_b, 8, "BIT 7, B"),
(bit_7_c, 8, "BIT 7, C"),
(bit_7_d, 8, "BIT 7, D"),
(bit_7_e, 8, "BIT 7, E"),
(res_0_b, 8, "RES 0, B"),
(res_0_c, 8, "RES 0, C"),
(res_0_d, 8, "RES 0, D"),
(res_0_e, 8, "RES 0, E"),
(res_0_h, 8, "RES 0, H"),
(res_0_l, 8, "RES 0, L"),
(res_0_mhl, 16, "RES 0, A"),
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
// 0x9 opcodes
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
// 0xa opcodes
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
// 0xb opcodes
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(res_7_b, 8, "RES 7, B"),
(res_7_c, 8, "RES 7, C"),
(res_7_d, 8, "RES 7, D"),
(res_7_e, 8, "RES 7, E"),
(res_7_h, 8, "RES 7, H"),
(res_7_l, 8, "RES 7, L"),
(res_7_mhl, 16, "RES 7, A"),
(res_7_a, 8, "RES 7, A"),
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
// 0xc opcodes
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
// 0xd opcodes
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
(noimpl, 4, "! UNIMP !"),
// 0xe opcodes
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(set_4_a, 8, "SET 4, A"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
// 0xf opcodes
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
(noimpl, 4, "! UNIMP !"),
];
fn nop(_cpu: &mut Cpu) {}
fn noimpl(_cpu: &mut Cpu) {
let ten_millis = time::Duration::from_millis(10000);
thread::sleep(ten_millis); // @todo remove this hack
fn illegal(_cpu: &mut Cpu) {
panic!("Illegal instruction");
}
fn ld_bc_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
cpu.set_bc(word);
}
fn ld_mbc_a(cpu: &mut Cpu) {
cpu.mmu.write(cpu.bc(), cpu.a);
}
fn inc_bc(cpu: &mut Cpu) {
cpu.set_bc(cpu.bc().wrapping_add(1));
}
fn inc_b(cpu: &mut Cpu) {
let b = cpu.b;
let value = b.wrapping_add(1);
cpu.set_sub(false);
cpu.set_zero(value == 0);
cpu.b = value;
}
fn dec_b(cpu: &mut Cpu) {
let b = cpu.b;
let value = b.wrapping_sub(1);
cpu.set_sub(true);
cpu.set_zero(value == 0);
cpu.set_half_carry((b & 0xf) == 0x0);
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
cpu.b = value;
}
fn ld_b_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.b = byte;
}
fn rlca(cpu: &mut Cpu) {
let carry = cpu.a >> 7;
cpu.a = cpu.a << 1 | carry;
cpu.set_sub(false);
cpu.set_zero(false);
cpu.set_half_carry(false);
cpu.set_carry(carry == 1);
}
fn ld_mu16_sp(cpu: &mut Cpu) {
let word = cpu.read_u16();
cpu.mmu.write(word, cpu.sp as u8);
cpu.mmu.write(word + 1, (cpu.sp >> 8) as u8);
}
fn add_hl_bc(cpu: &mut Cpu) {
let value = add_u16_u16(cpu, cpu.hl(), cpu.bc());
cpu.set_hl(value);
}
fn ld_a_mbc(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.bc());
cpu.a = byte;
}
fn dec_bc(cpu: &mut Cpu) {
cpu.set_bc(cpu.bc().wrapping_sub(1));
}
fn inc_c(cpu: &mut Cpu) {
let value = cpu.c.wrapping_add(1);
cpu.set_sub(false);
cpu.set_zero(value == 0);
cpu.c = value;
}
fn dec_c(cpu: &mut Cpu) {
let c = cpu.c;
let value = c.wrapping_sub(1);
cpu.set_sub(true);
cpu.set_zero(value == 0);
cpu.set_half_carry((c & 0xf) == 0x0);
cpu.c = value;
}
fn ld_c_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.c = byte;
}
fn rrca(cpu: &mut Cpu) {
let carry = cpu.a & 0x1;
cpu.a = (cpu.a >> 1) | (carry << 7);
cpu.set_sub(false);
cpu.set_zero(false);
cpu.set_half_carry(false);
cpu.set_carry(carry != 0x0);
}
fn stop(cpu: &mut Cpu) {
cpu.stop();
}
fn ld_de_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
cpu.set_de(word);
}
fn ld_mde_a(cpu: &mut Cpu) {
cpu.mmu.write(cpu.de(), cpu.a);
}
fn inc_de(cpu: &mut Cpu) {
cpu.set_de(cpu.de().wrapping_add(1));
}
let d = cpu.d;
let value = d.wrapping_add(1);
cpu.set_sub(false);
cpu.set_zero(value == 0);
fn dec_d(cpu: &mut Cpu) {
let d = cpu.d;
let value = d.wrapping_sub(1);
cpu.set_sub(true);
cpu.set_zero(value == 0);
cpu.set_half_carry((d & 0xf) == 0x0);
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
cpu.d = value;
}
fn ld_d_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.d = byte;
}
fn rla(cpu: &mut Cpu) {
let carry = cpu.get_carry();
cpu.set_carry(cpu.a & 0x80 == 0x80);
cpu.a = cpu.a << 1 | carry as u8;
cpu.set_sub(false);
cpu.set_zero(false);
cpu.set_half_carry(false);
}
fn jr_i8(cpu: &mut Cpu) {
let byte = cpu.read_u8() as i8;
cpu.pc = (cpu.pc as i16).wrapping_add(byte as i16) as u16;
}
fn add_hl_de(cpu: &mut Cpu) {
let value = add_u16_u16(cpu, cpu.hl(), cpu.de());
cpu.set_hl(value);
}
fn ld_a_mde(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.de());
cpu.a = byte;
}
fn dec_de(cpu: &mut Cpu) {
cpu.set_de(cpu.de().wrapping_sub(1));
}
let value = cpu.e.wrapping_add(1);
cpu.set_sub(false);
cpu.set_zero(value == 0);
fn dec_e(cpu: &mut Cpu) {
let e = cpu.e;
let value = e.wrapping_sub(1);
cpu.set_sub(true);
cpu.set_zero(value == 0);
cpu.set_half_carry((e & 0xf) == 0x0);
cpu.e = value;
}
fn ld_e_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.e = byte;
}
fn rra(cpu: &mut Cpu) {
let carry = cpu.get_carry();
cpu.set_carry(cpu.a & 0x01 == 0x01);
cpu.a = cpu.a >> 1 | ((carry as u8) << 7);
cpu.set_sub(false);
cpu.set_zero(false);
cpu.set_half_carry(false);
}
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
fn jr_nz_i8(cpu: &mut Cpu) {
let byte = cpu.read_u8() as i8;
if cpu.get_zero() {
return;
}
cpu.pc = (cpu.pc as i16).wrapping_add(byte as i16) as u16;
cpu.ticks = cpu.ticks.wrapping_add(4);
}
fn ld_hl_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
cpu.set_hl(word);
}
fn ld_mhli_a(cpu: &mut Cpu) {
cpu.mmu.write(cpu.hl(), cpu.a);
cpu.set_hl(cpu.hl().wrapping_add(1));
}
fn inc_hl(cpu: &mut Cpu) {
cpu.set_hl(cpu.hl().wrapping_add(1));
}
fn inc_h(cpu: &mut Cpu) {
let value = cpu.h.wrapping_add(1);
cpu.set_sub(false);
cpu.set_zero(value == 0);
fn dec_h(cpu: &mut Cpu) {
let h = cpu.h;
let value = h.wrapping_sub(1);
cpu.set_sub(true);
cpu.set_zero(value == 0);
cpu.set_half_carry((h & 0xf) == 0x0);
cpu.h = value;
}
fn ld_h_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.h = byte;
}
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
fn daa(cpu: &mut Cpu) {
let a = cpu.a;
let mut adjust = 0;
if cpu.get_half_carry() {
adjust |= 0x06;
}
if cpu.get_carry() {
// Yes, we have to adjust it.
adjust |= 0x60;
}
let res = if cpu.get_sub() {
a.wrapping_sub(adjust)
} else {
if a & 0x0F > 0x09 {
adjust |= 0x06;
}
if a > 0x99 {
adjust |= 0x60;
}
a.wrapping_add(adjust)
};
cpu.a = res;
cpu.set_zero(res == 0);
cpu.set_half_carry(false);
cpu.set_carry(adjust & 0x60 == 0x60);
}
fn jr_z_i8(cpu: &mut Cpu) {
let byte = cpu.read_u8() as i8;
if !cpu.get_zero() {
return;
}
cpu.pc = (cpu.pc as i16).wrapping_add(byte as i16) as u16;
cpu.ticks = cpu.ticks.wrapping_add(4);
}
fn add_hl_hl(cpu: &mut Cpu) {
let value = add_u16_u16(cpu, cpu.hl(), cpu.hl());
cpu.set_hl(value);
}
fn ld_a_mhli(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.a = byte;
cpu.set_hl(cpu.hl().wrapping_add(1));
}
fn dec_hl(cpu: &mut Cpu) {
cpu.set_hl(cpu.hl().wrapping_sub(1));
}
let l = cpu.l;
let value = l.wrapping_add(1);
cpu.set_sub(false);
cpu.set_zero(value == 0);
fn dec_l(cpu: &mut Cpu) {
let l = cpu.l;
let value = l.wrapping_sub(1);
cpu.set_sub(true);
cpu.set_zero(value == 0);
fn ld_l_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.l = byte;
}
fn cpl(cpu: &mut Cpu) {
cpu.a = !cpu.a;
cpu.set_sub(true);
cpu.set_half_carry(true);
}
fn ld_sp_u16(cpu: &mut Cpu) {
cpu.sp = cpu.read_u16();
}
fn jr_nc_i8(cpu: &mut Cpu) {
if cpu.get_carry() {
return;
}
cpu.pc = (cpu.pc as i16).wrapping_add(byte as i16) as u16;
cpu.ticks = cpu.ticks.wrapping_add(4);
}
fn ld_mhld_a(cpu: &mut Cpu) {
cpu.mmu.write(cpu.hl(), cpu.a);
cpu.set_hl(cpu.hl().wrapping_sub(1));
}
fn inc_sp(cpu: &mut Cpu) {
cpu.sp = cpu.sp.wrapping_add(1);
}
fn inc_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
let value = byte.wrapping_add(1);
cpu.set_sub(false);
cpu.set_zero(value == 0);
cpu.set_half_carry((byte & 0xf) == 0xf);
cpu.mmu.write(cpu.hl(), value);
}
fn dec_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
let value = byte.wrapping_sub(1);
cpu.set_sub(true);
cpu.set_zero(value == 0);
cpu.set_half_carry((byte & 0xf) == 0x0);
fn ld_mhl_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.mmu.write(cpu.hl(), byte);
}
fn scf(cpu: &mut Cpu) {
cpu.set_sub(false);
cpu.set_half_carry(false);
cpu.set_carry(true);
}
if !cpu.get_carry() {
return;
}
cpu.pc = (cpu.pc as i16).wrapping_add(byte as i16) as u16;
cpu.ticks = cpu.ticks.wrapping_add(4);
}
fn add_hl_sp(cpu: &mut Cpu) {
let value = add_u16_u16(cpu, cpu.hl(), cpu.sp());
cpu.set_hl(value);
}
fn ld_a_mhld(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.a = byte;
cpu.set_hl(cpu.hl().wrapping_sub(1));
}
fn dec_sp(cpu: &mut Cpu) {
cpu.sp = cpu.sp.wrapping_sub(1);
}
let a = cpu.a;
let value = a.wrapping_add(1);
cpu.set_sub(false);
cpu.set_zero(value == 0);
fn dec_a(cpu: &mut Cpu) {
let a = cpu.a;
let value = a.wrapping_sub(1);
cpu.set_sub(true);
cpu.set_zero(value == 0);
cpu.set_half_carry((a & 0xf) == 0x0);
cpu.a = value;
}
fn ld_a_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.a = byte;
}
fn ccf(cpu: &mut Cpu) {
cpu.set_sub(false);
cpu.set_half_carry(false);
cpu.set_carry(!cpu.get_carry());
}
fn ld_b_b(cpu: &mut Cpu) {
cpu.b = cpu.b;
}
fn ld_b_c(cpu: &mut Cpu) {
cpu.b = cpu.c;
}
fn ld_b_d(cpu: &mut Cpu) {
cpu.b = cpu.d;
}
fn ld_b_e(cpu: &mut Cpu) {
cpu.b = cpu.e;
}
fn ld_b_h(cpu: &mut Cpu) {
cpu.b = cpu.h;
}
fn ld_b_l(cpu: &mut Cpu) {
cpu.b = cpu.l;
}
fn ld_b_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.b = byte;
}
fn ld_b_a(cpu: &mut Cpu) {
cpu.b = cpu.a;
}
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
fn ld_c_b(cpu: &mut Cpu) {
cpu.c = cpu.b;
}
fn ld_c_c(cpu: &mut Cpu) {
cpu.c = cpu.c;
}
fn ld_c_d(cpu: &mut Cpu) {
cpu.c = cpu.d;
}
fn ld_c_e(cpu: &mut Cpu) {
cpu.c = cpu.e;
}
fn ld_c_h(cpu: &mut Cpu) {
cpu.c = cpu.h;
}
fn ld_c_l(cpu: &mut Cpu) {
cpu.c = cpu.l;
}
fn ld_c_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.c = byte;
}
fn ld_c_a(cpu: &mut Cpu) {
cpu.c = cpu.a;
}
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
fn ld_d_b(cpu: &mut Cpu) {
cpu.d = cpu.b;
}
fn ld_d_c(cpu: &mut Cpu) {
cpu.d = cpu.c;
}
fn ld_d_d(cpu: &mut Cpu) {
cpu.d = cpu.d;
}
fn ld_d_e(cpu: &mut Cpu) {
cpu.d = cpu.e;
}
fn ld_d_h(cpu: &mut Cpu) {
cpu.d = cpu.h;
}
fn ld_d_l(cpu: &mut Cpu) {
cpu.d = cpu.l;
}
fn ld_d_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.d = byte;
}
fn ld_d_a(cpu: &mut Cpu) {
cpu.d = cpu.a;
}
fn ld_e_b(cpu: &mut Cpu) {
cpu.e = cpu.b;
}
fn ld_e_c(cpu: &mut Cpu) {
cpu.e = cpu.c;
}
fn ld_e_d(cpu: &mut Cpu) {
cpu.e = cpu.d;
}
fn ld_e_e(cpu: &mut Cpu) {
cpu.e = cpu.e;
}
fn ld_e_h(cpu: &mut Cpu) {
cpu.e = cpu.h;
}
fn ld_e_l(cpu: &mut Cpu) {
cpu.e = cpu.l;
}
fn ld_e_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.e = byte;
}
fn ld_e_a(cpu: &mut Cpu) {
cpu.e = cpu.a;
}
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
fn ld_h_b(cpu: &mut Cpu) {
cpu.h = cpu.b;
}
fn ld_h_c(cpu: &mut Cpu) {
cpu.h = cpu.c;
}
fn ld_h_d(cpu: &mut Cpu) {
cpu.h = cpu.d;
}
fn ld_h_e(cpu: &mut Cpu) {
cpu.h = cpu.e;
}
fn ld_h_h(cpu: &mut Cpu) {
cpu.h = cpu.h;
}
fn ld_h_l(cpu: &mut Cpu) {
cpu.h = cpu.l;
}
fn ld_h_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.h = byte;
}
fn ld_h_a(cpu: &mut Cpu) {
cpu.h = cpu.a;
}
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
fn ld_l_b(cpu: &mut Cpu) {
cpu.l = cpu.b;
}
fn ld_l_c(cpu: &mut Cpu) {
cpu.l = cpu.c;
}
fn ld_l_d(cpu: &mut Cpu) {
cpu.l = cpu.d;
}
fn ld_l_e(cpu: &mut Cpu) {
cpu.l = cpu.e;
}
fn ld_l_h(cpu: &mut Cpu) {
cpu.l = cpu.h;
}
fn ld_l_l(cpu: &mut Cpu) {
cpu.l = cpu.l;
}
fn ld_l_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.l = byte;
}
fn ld_l_a(cpu: &mut Cpu) {
cpu.l = cpu.a;
}
fn ld_mhl_b(cpu: &mut Cpu) {
cpu.mmu.write(cpu.hl(), cpu.b);
}
fn ld_mhl_c(cpu: &mut Cpu) {
cpu.mmu.write(cpu.hl(), cpu.c);
}
fn ld_mhl_d(cpu: &mut Cpu) {
cpu.mmu.write(cpu.hl(), cpu.d);
}
fn ld_mhl_e(cpu: &mut Cpu) {
cpu.mmu.write(cpu.hl(), cpu.e);
}
fn ld_mhl_h(cpu: &mut Cpu) {
cpu.mmu.write(cpu.hl(), cpu.h);
}
fn ld_mhl_l(cpu: &mut Cpu) {
cpu.mmu.write(cpu.hl(), cpu.l);
}
fn halt(cpu: &mut Cpu) {
cpu.halt();
}
fn ld_mhl_a(cpu: &mut Cpu) {
cpu.mmu.write(cpu.hl(), cpu.a);
}
fn ld_a_b(cpu: &mut Cpu) {
cpu.a = cpu.b;
}
fn ld_a_c(cpu: &mut Cpu) {
cpu.a = cpu.c;
}
fn ld_a_d(cpu: &mut Cpu) {
cpu.a = cpu.d;
}
fn ld_a_e(cpu: &mut Cpu) {
cpu.a = cpu.e;
}
fn ld_a_h(cpu: &mut Cpu) {
cpu.a = cpu.h;
}
fn ld_a_l(cpu: &mut Cpu) {
cpu.a = cpu.l;
}
fn ld_a_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.a = byte;
}
fn ld_a_a(cpu: &mut Cpu) {
cpu.a = cpu.a;
}
fn add_a_b(cpu: &mut Cpu) {
cpu.a = add_set_flags(cpu, cpu.a, cpu.b);
}
fn add_a_c(cpu: &mut Cpu) {
cpu.a = add_set_flags(cpu, cpu.a, cpu.c);
}
fn add_a_d(cpu: &mut Cpu) {
cpu.a = add_set_flags(cpu, cpu.a, cpu.d);
}
fn add_a_e(cpu: &mut Cpu) {
cpu.a = add_set_flags(cpu, cpu.a, cpu.e);
}
fn add_a_h(cpu: &mut Cpu) {
cpu.a = add_set_flags(cpu, cpu.a, cpu.h);
}
fn add_a_l(cpu: &mut Cpu) {
cpu.a = add_set_flags(cpu, cpu.a, cpu.l);
}
fn add_a_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.a = add_set_flags(cpu, cpu.a, byte);
}
fn add_a_a(cpu: &mut Cpu) {
cpu.a = add_set_flags(cpu, cpu.a, cpu.a);
}
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
fn adc_a_b(cpu: &mut Cpu) {
cpu.a = add_carry_set_flags(cpu, cpu.a, cpu.b);
}
fn adc_a_c(cpu: &mut Cpu) {
cpu.a = add_carry_set_flags(cpu, cpu.a, cpu.c);
}
fn adc_a_d(cpu: &mut Cpu) {
cpu.a = add_carry_set_flags(cpu, cpu.a, cpu.d);
}
fn adc_a_e(cpu: &mut Cpu) {
cpu.a = add_carry_set_flags(cpu, cpu.a, cpu.e);
}
fn adc_a_h(cpu: &mut Cpu) {
cpu.a = add_carry_set_flags(cpu, cpu.a, cpu.h);
}
fn adc_a_l(cpu: &mut Cpu) {
cpu.a = add_carry_set_flags(cpu, cpu.a, cpu.l);
}
fn adc_a_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.a = add_carry_set_flags(cpu, cpu.a, byte);
}
fn adc_a_a(cpu: &mut Cpu) {
cpu.a = add_carry_set_flags(cpu, cpu.a, cpu.a);
}
fn sub_a_b(cpu: &mut Cpu) {
cpu.a = sub_set_flags(cpu, cpu.a, cpu.b);
}
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
fn sub_a_c(cpu: &mut Cpu) {
cpu.a = sub_set_flags(cpu, cpu.a, cpu.c);
}
fn sub_a_d(cpu: &mut Cpu) {
cpu.a = sub_set_flags(cpu, cpu.a, cpu.d);
}
fn sub_a_e(cpu: &mut Cpu) {
cpu.a = sub_set_flags(cpu, cpu.a, cpu.e);
}
fn sub_a_h(cpu: &mut Cpu) {
cpu.a = sub_set_flags(cpu, cpu.a, cpu.h);
}
fn sub_a_l(cpu: &mut Cpu) {
cpu.a = sub_set_flags(cpu, cpu.a, cpu.l);
}
fn sub_a_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.a = sub_set_flags(cpu, cpu.a, byte);
}
fn sub_a_a(cpu: &mut Cpu) {
cpu.a = sub_set_flags(cpu, cpu.a, cpu.a);
}
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
fn sbc_a_b(cpu: &mut Cpu) {
cpu.a = sub_carry_set_flags(cpu, cpu.a, cpu.b);
}
fn sbc_a_c(cpu: &mut Cpu) {
cpu.a = sub_carry_set_flags(cpu, cpu.a, cpu.c);
}
fn sbc_a_d(cpu: &mut Cpu) {
cpu.a = sub_carry_set_flags(cpu, cpu.a, cpu.d);
}
fn sbc_a_e(cpu: &mut Cpu) {
cpu.a = sub_carry_set_flags(cpu, cpu.a, cpu.e);
}
fn sbc_a_h(cpu: &mut Cpu) {
cpu.a = sub_carry_set_flags(cpu, cpu.a, cpu.h);
}
fn sbc_a_l(cpu: &mut Cpu) {
cpu.a = sub_carry_set_flags(cpu, cpu.a, cpu.l);
}
fn sbc_a_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.a = sub_carry_set_flags(cpu, cpu.a, byte);
}
fn sbc_a_a(cpu: &mut Cpu) {
cpu.a = sub_carry_set_flags(cpu, cpu.a, cpu.a);
}
fn and_a_b(cpu: &mut Cpu) {
cpu.a &= cpu.b;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(true);
cpu.set_carry(false);
}
fn and_a_c(cpu: &mut Cpu) {
cpu.a &= cpu.c;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(true);
cpu.set_carry(false);
}
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
fn and_a_d(cpu: &mut Cpu) {
cpu.a &= cpu.d;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(true);
cpu.set_carry(false);
}
fn and_a_e(cpu: &mut Cpu) {
cpu.a &= cpu.e;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(true);
cpu.set_carry(false);
}
fn and_a_h(cpu: &mut Cpu) {
cpu.a &= cpu.h;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(true);
cpu.set_carry(false);
}
fn and_a_l(cpu: &mut Cpu) {
cpu.a &= cpu.l;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(true);
cpu.set_carry(false);
}
fn and_a_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.a &= byte;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(true);
cpu.set_carry(false);
}
fn and_a_a(cpu: &mut Cpu) {
cpu.a &= cpu.a;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(true);
cpu.set_carry(false);
}
fn xor_a_b(cpu: &mut Cpu) {
cpu.a ^= cpu.b;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn xor_a_c(cpu: &mut Cpu) {
cpu.a ^= cpu.c;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
fn xor_a_d(cpu: &mut Cpu) {
cpu.a ^= cpu.d;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn xor_a_e(cpu: &mut Cpu) {
cpu.a ^= cpu.e;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn xor_a_h(cpu: &mut Cpu) {
cpu.a ^= cpu.h;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn xor_a_l(cpu: &mut Cpu) {
cpu.a ^= cpu.l;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn xor_a_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.a ^= byte;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
fn xor_a_a(cpu: &mut Cpu) {
cpu.a ^= cpu.a;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn or_a_b(cpu: &mut Cpu) {
cpu.a |= cpu.b;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn or_a_c(cpu: &mut Cpu) {
cpu.a |= cpu.c;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
fn or_a_d(cpu: &mut Cpu) {
cpu.a |= cpu.d;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn or_a_e(cpu: &mut Cpu) {
cpu.a |= cpu.e;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn or_a_h(cpu: &mut Cpu) {
cpu.a |= cpu.h;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn or_a_l(cpu: &mut Cpu) {
cpu.a |= cpu.l;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn or_a_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
cpu.a |= byte;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn or_a_a(cpu: &mut Cpu) {
cpu.a |= cpu.a;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
fn cp_a_b(cpu: &mut Cpu) {
sub_set_flags(cpu, cpu.a, cpu.b);
}
fn cp_a_c(cpu: &mut Cpu) {
sub_set_flags(cpu, cpu.a, cpu.c);
}
fn cp_a_d(cpu: &mut Cpu) {
sub_set_flags(cpu, cpu.a, cpu.d);
}
fn cp_a_e(cpu: &mut Cpu) {
sub_set_flags(cpu, cpu.a, cpu.e);
}
fn cp_a_h(cpu: &mut Cpu) {
sub_set_flags(cpu, cpu.a, cpu.h);
}
fn cp_a_l(cpu: &mut Cpu) {
sub_set_flags(cpu, cpu.a, cpu.l);
}
fn cp_a_mhl(cpu: &mut Cpu) {
let byte = cpu.mmu.read(cpu.hl());
sub_set_flags(cpu, cpu.a, byte);
}
fn cp_a_a(cpu: &mut Cpu) {
sub_set_flags(cpu, cpu.a, cpu.a);
}
fn ret_nz(cpu: &mut Cpu) {
if cpu.get_zero() {
return;
}
cpu.pc = cpu.pop_word();
cpu.ticks = cpu.ticks.wrapping_add(12);
}
fn pop_bc(cpu: &mut Cpu) {
let word = cpu.pop_word();
cpu.set_bc(word);
}
fn jp_nz_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
if cpu.get_zero() {
return;
}
cpu.pc = word;
cpu.ticks = cpu.ticks.wrapping_add(4);
}
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
fn jp_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
cpu.pc = word;
}
fn call_nz_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
if cpu.get_zero() {
return;
}
cpu.push_word(cpu.pc);
cpu.pc = word;
cpu.ticks = cpu.ticks.wrapping_add(12);
}
fn push_bc(cpu: &mut Cpu) {
cpu.push_word(cpu.bc());
}
fn add_a_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.a = add_set_flags(cpu, cpu.a, byte);
}
fn rst_00h(cpu: &mut Cpu) {
rst(cpu, 0x0000);
}
fn ret_z(cpu: &mut Cpu) {
if !cpu.get_zero() {
return;
}
cpu.pc = cpu.pop_word();
cpu.ticks = cpu.ticks.wrapping_add(12);
}
fn ret(cpu: &mut Cpu) {
cpu.pc = cpu.pop_word();
}
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
fn jp_z_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
if !cpu.get_zero() {
return;
}
cpu.pc = word;
cpu.ticks = cpu.ticks.wrapping_add(4);
}
fn call_z_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
if !cpu.get_zero() {
return;
}
cpu.push_word(cpu.pc);
cpu.pc = word;
cpu.ticks = cpu.ticks.wrapping_add(12);
}
fn call_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
cpu.push_word(cpu.pc);
cpu.pc = word;
}
fn adc_a_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.a = add_carry_set_flags(cpu, cpu.a, byte);
}
fn rst_08h(cpu: &mut Cpu) {
rst(cpu, 0x0008);
}
fn ret_nc(cpu: &mut Cpu) {
if cpu.get_carry() {
return;
}
cpu.pc = cpu.pop_word();
cpu.ticks = cpu.ticks.wrapping_add(12);
}
fn pop_de(cpu: &mut Cpu) {
let word = cpu.pop_word();
cpu.set_de(word);
}
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
fn jp_nc_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
if cpu.get_carry() {
return;
}
cpu.pc = word;
cpu.ticks = cpu.ticks.wrapping_add(4);
}
fn call_nc_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
if cpu.get_carry() {
return;
}
cpu.push_word(cpu.pc);
cpu.pc = word;
cpu.ticks = cpu.ticks.wrapping_add(12);
}
fn push_de(cpu: &mut Cpu) {
cpu.push_word(cpu.de());
}
fn sub_a_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.a = sub_set_flags(cpu, cpu.a, byte);
}
fn rst_10h(cpu: &mut Cpu) {
rst(cpu, 0x0010);
}
fn ret_c(cpu: &mut Cpu) {
if !cpu.get_carry() {
return;
}
cpu.pc = cpu.pop_word();
cpu.ticks = cpu.ticks.wrapping_add(12);
}
fn reti(cpu: &mut Cpu) {
cpu.pc = cpu.pop_word();
cpu.enable_int();
}
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
fn jp_c_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
if !cpu.get_carry() {
return;
}
cpu.pc = word;
cpu.ticks = cpu.ticks.wrapping_add(4);
}
fn call_c_u16(cpu: &mut Cpu) {
let word = cpu.read_u16();
if !cpu.get_carry() {
return;
}
cpu.push_word(cpu.pc);
cpu.pc = word;
cpu.ticks = cpu.ticks.wrapping_add(12);
}
fn sbc_a_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.a = sub_carry_set_flags(cpu, cpu.a, byte);
}
fn rst_18h(cpu: &mut Cpu) {
rst(cpu, 0x0018);
}
fn ld_mff00u8_a(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.mmu.write(0xff00 + byte as u16, cpu.a);
}
fn pop_hl(cpu: &mut Cpu) {
let word = cpu.pop_word();
cpu.set_hl(word);
}
fn ld_mff00c_a(cpu: &mut Cpu) {
cpu.mmu.write(0xff00 + cpu.c as u16, cpu.a);
}
fn push_hl(cpu: &mut Cpu) {
cpu.push_word(cpu.hl());
}
fn and_a_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.a &= byte;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(true);
cpu.set_carry(false);
}
fn rst_20h(cpu: &mut Cpu) {
rst(cpu, 0x0020);
}
fn add_sp_i8(cpu: &mut Cpu) {
let sp = cpu.sp as i32;
let byte = cpu.read_u8() as i8;
let byte_i32 = byte as i32;
let result = sp.wrapping_add(byte_i32);
cpu.set_sub(false);
cpu.set_zero(false);
cpu.set_half_carry((sp ^ byte_i32 ^ result) & 0x10 == 0x10);
cpu.set_carry((sp ^ byte_i32 ^ result) & 0x100 == 0x100);
cpu.sp = result as u16;
}
fn jp_hl(cpu: &mut Cpu) {
cpu.pc = cpu.hl();
}
fn ld_mu16_a(cpu: &mut Cpu) {
let word = cpu.read_u16();
cpu.mmu.write(word, cpu.a);
}
fn xor_a_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.a ^= byte;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn rst_28h(cpu: &mut Cpu) {
rst(cpu, 0x0028);
}
fn ld_a_mff00u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.a = cpu.mmu.read(0xff00 + byte as u16);
}
fn pop_af(cpu: &mut Cpu) {
let word = cpu.pop_word();
cpu.set_af(word);
}
fn ld_a_mff00c(cpu: &mut Cpu) {
cpu.a = cpu.mmu.read(0xff00 + cpu.c as u16);
}
fn di(cpu: &mut Cpu) {
cpu.disable_int();
}
fn push_af(cpu: &mut Cpu) {
cpu.push_word(cpu.af());
}
fn or_a_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
cpu.a |= byte;
cpu.set_sub(false);
cpu.set_zero(cpu.a == 0);
cpu.set_half_carry(false);
cpu.set_carry(false);
}
fn rst_30h(cpu: &mut Cpu) {
rst(cpu, 0x0030);
}
fn ld_hl_spi8(cpu: &mut Cpu) {
let sp = cpu.sp as i32;
let byte = cpu.read_u8() as i8;
let byte_i32 = byte as i32;
let result = sp.wrapping_add(byte_i32);
cpu.set_sub(false);
cpu.set_zero(false);
cpu.set_half_carry((sp ^ byte_i32 ^ result) & 0x10 == 0x10);
cpu.set_carry((sp ^ byte_i32 ^ result) & 0x100 == 0x100);
cpu.set_hl(result as u16);
}
fn ld_sp_hl(cpu: &mut Cpu) {
cpu.sp = cpu.hl();
}
fn ld_a_mu16(cpu: &mut Cpu) {
let word = cpu.read_u16();
let byte = cpu.mmu.read(word);
cpu.a = byte;
}
fn ei(cpu: &mut Cpu) {
cpu.enable_int();
}
fn cp_a_u8(cpu: &mut Cpu) {
let byte = cpu.read_u8();
sub_set_flags(cpu, cpu.a, byte);
}
fn rst_38h(cpu: &mut Cpu) {
rst(cpu, 0x0038);
}
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
fn rlc_b(cpu: &mut Cpu) {
cpu.b = rlc(cpu, cpu.b);
}
fn rlc_c(cpu: &mut Cpu) {
cpu.c = rlc(cpu, cpu.c);
}
fn rlc_d(cpu: &mut Cpu) {
cpu.d = rlc(cpu, cpu.d);
}
fn rlc_e(cpu: &mut Cpu) {
cpu.e = rlc(cpu, cpu.e);
}
fn rlc_h(cpu: &mut Cpu) {
cpu.h = rlc(cpu, cpu.h);
}
fn rlc_l(cpu: &mut Cpu) {
cpu.l = rlc(cpu, cpu.l);
}
fn rlc_mhl(cpu: &mut Cpu) {
let hl = cpu.hl();
let byte = cpu.mmu.read(hl);
let result = rlc(cpu, byte);
cpu.mmu.write(hl, result);
}
fn rlc_a(cpu: &mut Cpu) {
cpu.a = rlc(cpu, cpu.a);
}
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
fn rrc_b(cpu: &mut Cpu) {
cpu.b = rrc(cpu, cpu.b);
}
fn rrc_c(cpu: &mut Cpu) {
cpu.c = rrc(cpu, cpu.c);
}
fn rrc_d(cpu: &mut Cpu) {
cpu.d = rrc(cpu, cpu.d);
}
fn rrc_e(cpu: &mut Cpu) {
cpu.e = rrc(cpu, cpu.e);
}
fn rrc_h(cpu: &mut Cpu) {
cpu.h = rrc(cpu, cpu.h);
}
fn rrc_l(cpu: &mut Cpu) {
cpu.l = rrc(cpu, cpu.l);
}
fn rrc_mhl(cpu: &mut Cpu) {
let hl = cpu.hl();
let byte = cpu.mmu.read(hl);
let result = rrc(cpu, byte);
cpu.mmu.write(hl, result);
}
fn rrc_a(cpu: &mut Cpu) {
cpu.l = rrc(cpu, cpu.a);
}
fn rl_b(cpu: &mut Cpu) {
cpu.b = rl(cpu, cpu.b);
}
fn rl_c(cpu: &mut Cpu) {
cpu.c = rl(cpu, cpu.c);
}
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
fn rl_d(cpu: &mut Cpu) {
cpu.d = rl(cpu, cpu.d);
}
fn rl_e(cpu: &mut Cpu) {
cpu.e = rl(cpu, cpu.e);
}
fn rl_h(cpu: &mut Cpu) {
cpu.h = rl(cpu, cpu.h);
}
fn rl_l(cpu: &mut Cpu) {
cpu.l = rl(cpu, cpu.l);
}
fn rl_mhl(cpu: &mut Cpu) {
let hl = cpu.hl();
let byte = cpu.mmu.read(hl);
let result = rl(cpu, byte);
cpu.mmu.write(hl, result);
}
fn rl_a(cpu: &mut Cpu) {
cpu.a = rl(cpu, cpu.a);
}
fn rr_b(cpu: &mut Cpu) {
cpu.b = rr(cpu, cpu.b);
}
fn rr_c(cpu: &mut Cpu) {
cpu.c = rr(cpu, cpu.c);
}
fn rr_d(cpu: &mut Cpu) {
cpu.d = rr(cpu, cpu.d);
}
fn rr_e(cpu: &mut Cpu) {
cpu.e = rr(cpu, cpu.e);
}
fn rr_h(cpu: &mut Cpu) {
cpu.h = rr(cpu, cpu.h);
}
fn rr_l(cpu: &mut Cpu) {
cpu.l = rr(cpu, cpu.l);
}
fn rr_mhl(cpu: &mut Cpu) {
let hl = cpu.hl();
let byte = cpu.mmu.read(hl);
let result = rr(cpu, byte);
cpu.mmu.write(hl, result);
}
fn rr_a(cpu: &mut Cpu) {
cpu.l = rr(cpu, cpu.a);
}
fn sla_b(cpu: &mut Cpu) {
cpu.b = sla(cpu, cpu.b);
}
Loading
Loading full blame...