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/
crater
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Implement more instructions, mainly bit-shifting.

master
Ben Kurtovic 8 years ago
parent
fdda540d26
commit
1942d797aa
3 changed files with 559 additions and 145 deletions
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  1. +64
    -3
      src/z80_flags.inc.c
  2. +417
    -64
      src/z80_ops.inc.c
  3. +78
    -78
      src/z80_tables.inc.c

+ 64
- 3
src/z80_flags.inc.c View File

@@ -10,6 +10,8 @@
#define SIGN(x) NEG(x)
#define SUB 1

#define CARRY2(lh, op, rh) (((lh) op (rh)) & 0x10000)

#define OV_ADD(lh, rh, res) \
(POS(lh) && POS(rh) && NEG(res) || NEG(lh) && NEG(rh) && POS(res))
#define OV_SUB(lh, rh, res) \
@@ -82,9 +84,67 @@ static inline void set_flags_dec(Z80 *z80, uint8_t val)
F5(res), ZERO(res), SIGN(res), 0xFE);
}

// set_flags(Z80 *z80,
// bool c, bool n, bool pv, bool f3, bool h, bool f5, bool z, bool s,
// uint8_t mask)
/*
Set the flags for a 16-bit ADD instruction.
*/
static inline void set_flags_add16(Z80 *z80, uint16_t lh, uint16_t rh)
{
uint16_t res = lh + rh;
set_flags(z80, CARRY2(lh, +, rh), !SUB, 0, F3(res >> 8),
HALF(lh >> 8, +, rh >> 8), F5(res >> 8), 0, 0, 0x3B);
}

/*
Set the flags for a 16-bit ADC instruction.
*/
static inline void set_flags_adc16(Z80 *z80, uint16_t lh, uint32_t rh)
{
uint16_t res = lh + rh;
set_flags(z80, CARRY2(lh, +, rh), !SUB, OV_ADD(lh >> 8, rh >> 8, res >> 8),
F3(res >> 8), HALF(lh >> 8, +, rh >> 8), F5(res >> 8), ZERO(res),
SIGN(res >> 8), 0xFF);
}

/*
Set the flags for a 16-bit SBC instruction.
*/
static inline void set_flags_sbc16(Z80 *z80, uint16_t lh, uint32_t rh)
{
uint16_t res = lh - rh;
set_flags(z80, CARRY2(lh, -, rh), SUB, OV_SUB(lh >> 8, rh >> 8, res >> 8),
F3(res >> 8), HALF(lh >> 8, -, rh >> 8), F5(res >> 8), ZERO(res),
SIGN(res >> 8), 0xFF);
}

/*
Set the flags for a BIT instruction.
*/
static inline void set_flags_bit(Z80 *z80, uint8_t val, uint8_t bit)
{
bool z = ZERO((val >> bit) & 1);
if (z)
set_flags(z80, 0, 0, z, 0, 1, 0, z, 0, 0xFE);
else
set_flags(z80, 0, 0, z, bit == 3, 1, bit == 5, z, bit == 7, 0xFE);
}

/*
Set the flags for a RLCA/RLA/RRCA/RRA instruction.
*/
static inline void set_flags_bitrota(Z80 *z80, uint8_t bit)
{
uint8_t a = z80->regs.a;
set_flags(z80, bit, 0, 0, F3(a), 0, F5(a), 0, 0, 0x3B);
}

/*
Set the flags for a RLC/RL/RRC/RR/SLA/SRA/SL1/SRL instruction.
*/
static inline void set_flags_bitshift(Z80 *z80, uint8_t res, uint8_t bit)
{
set_flags(z80, bit, 0, PARITY(res), F3(res), 0, F5(res), ZERO(res),
SIGN(res), 0xFF);
}

#undef POS
#undef NEG
@@ -93,6 +153,7 @@ static inline void set_flags_dec(Z80 *z80, uint8_t val)
#undef ZERO
#undef SIGN
#undef SUB
#undef CARRY2
#undef OV_ADD
#undef OV_SUB
#undef PARITY


+ 417
- 64
src/z80_ops.inc.c View File

@@ -534,7 +534,7 @@ static uint8_t z80_inst_lddr(Z80 *z80, uint8_t opcode)
return 21;
}

// TODO; CPI
// TODO: CPI

// TODO: CPIR

@@ -1115,8 +1115,6 @@ static uint8_t z80_inst_dec_ixy(Z80 *z80, uint8_t opcode)
return 23;
}

// ----------------------------------------------------------------------------

// TODO: DAA

// TODO: CPL
@@ -1212,18 +1210,27 @@ static uint8_t z80_inst_im(Z80 *z80, uint8_t opcode)
static uint8_t z80_inst_add_hl_ss(Z80 *z80, uint8_t opcode)
{
uint16_t lh = z80->regs.hl, rh = *extract_pair(z80, opcode);
uint16_t value = lh + rh;
z80->regs.hl = value;

bool h = !!(((lh & 0x0FFF) + (rh & 0x0FFF)) & 0x1000);
set_flags(z80, (lh + rh) != value, 0, 0, !!(value & 0x0800), h,
!!(value & 0x2000), 0, 0, 0x3B);
z80->regs.hl += rh;

set_flags_add16(z80, lh, rh);
z80->regs.pc++;
return 11;
}

// TODO: ADC HL, ss
/*
ADC HL, ss
TODO
*/
static uint8_t z80_inst_adc_hl_ss(Z80 *z80, uint8_t opcode)
{
uint16_t lh = z80->regs.hl;
uint32_t rh = *extract_pair(z80, opcode) + get_flag(z80, FLAG_CARRY);
z80->regs.hl += rh;

set_flags_adc16(z80, lh, rh);
z80->regs.pc++;
return 15;
}

/*
SBC HL, ss (0xED42, 0xED52, 0xED62, 0xED72):
@@ -1231,24 +1238,29 @@ static uint8_t z80_inst_add_hl_ss(Z80 *z80, uint8_t opcode)
*/
static uint8_t z80_inst_sbc_hl_ss(Z80 *z80, uint8_t opcode)
{
uint16_t minu = z80->regs.hl;
uint16_t subtra = *extract_pair(z80, opcode) + get_flag(z80, FLAG_CARRY);
uint16_t value = minu - subtra;
z80->regs.hl = value;
uint16_t lh = z80->regs.hl;
uint32_t rh = *extract_pair(z80, opcode) + get_flag(z80, FLAG_CARRY);
z80->regs.hl -= rh;

bool c = (minu - subtra) != value;
bool ov = (minu - subtra) != ((int16_t) value);
bool hc = !!(((minu & 0x0FFF) - (subtra & 0x0FFF)) & 0x1000);
set_flags_sbc16(z80, lh, rh);
z80->regs.pc++;
return 15;
}

set_flags(z80, c, 1, ov, !!(value & 0x0800), hc,
!!(value & 0x2000), value == 0, !!(value & 0x8000), 0xFF);
/*
ADD IXY, pp
TODO
*/
static uint8_t z80_inst_add_ixy_ss(Z80 *z80, uint8_t opcode)
{
uint16_t lh = *z80->regs.ixy, rh = *extract_pair(z80, opcode);
*z80->regs.ixy += rh;

set_flags_add16(z80, lh, rh);
z80->regs.pc++;
return 15;
}

// TODO: ADD IXY, pp

/*
INC ss (0x03, 0x13, 0x23, 0x33):
Increment ss (16-bit register).
@@ -1260,7 +1272,17 @@ static uint8_t z80_inst_inc_ss(Z80 *z80, uint8_t opcode)
return 6;
}

// TODO: INC IXY
/*
INC IXY
TODO
*/
static uint8_t z80_inst_inc_xy(Z80 *z80, uint8_t opcode)
{
(void) opcode;
(*z80->regs.ixy)++;
z80->regs.pc++;
return 6;
}

/*
DEC ss (0x0B, 0x1B, 0x2B, 0x3B):
@@ -1273,57 +1295,397 @@ static uint8_t z80_inst_dec_ss(Z80 *z80, uint8_t opcode)
return 6;
}

// TODO: DEC IXY
/*
DEC IXY
TODO
*/
static uint8_t z80_inst_dec_xy(Z80 *z80, uint8_t opcode)
{
(void) opcode;
(*z80->regs.ixy)--;
z80->regs.pc++;
return 6;
}

/*
RLCA (0x07):
Rotate A left one bit. Bit 7 is copied to bit 0 and the carry flag.
*/
static uint8_t z80_inst_rlca(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t bit = (z80->regs.a & 0x80) >> 7;
z80->regs.a <<= 1;
z80->regs.a |= bit;

set_flags_bitrota(z80, bit);
z80->regs.pc++;
return 4;
}

/*
RLA (0x17):
Rotate A left one bit. Carry flag is copied to bit 0, and bit 7 is copied
to the carry flag.
*/
static uint8_t z80_inst_rla(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t carry = get_flag(z80, FLAG_CARRY);
uint8_t bit = (z80->regs.a & 0x80) >> 7;
z80->regs.a <<= 1;
z80->regs.a |= carry;

set_flags_bitrota(z80, bit);
z80->regs.pc++;
return 4;
}

/*
RRCA (0x0F):
Rotate A right one bit. Bit 0 is copied to bit 7 and the carry flag.
*/
static uint8_t z80_inst_rrca(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t bit = z80->regs.a & 0x01;
z80->regs.a >>= 1;
z80->regs.a |= (bit << 7);

set_flags_bitrota(z80, bit);
z80->regs.pc++;
return 4;
}

/*
RRA (0x1F):
Rotate A right one bit. Carry flag is copied to bit 7, and bit 0 is copied
to the carry flag.
*/
static uint8_t z80_inst_rra(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t carry = get_flag(z80, FLAG_CARRY);
uint8_t bit = z80->regs.a & 0x01;
z80->regs.a >>= 1;
z80->regs.a |= (carry << 7);

set_flags_bitrota(z80, bit);
z80->regs.pc++;
return 4;
}

/*
RLC r
TODO
*/
static uint8_t z80_inst_rlc_r(Z80 *z80, uint8_t opcode)
{
uint8_t *reg = extract_reg(z80, opcode << 3);
uint8_t bit = ((*reg) & 0x80) >> 7;
(*reg) <<= 1;
(*reg) |= bit;

set_flags_bitshift(z80, *reg, bit);
z80->regs.pc++;
return 8;
}

/*
RLC (HL)
TODO
*/
static uint8_t z80_inst_rlc_hl(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t val = mmu_read_byte(z80->mmu, z80->regs.hl);
uint8_t bit = (val & 0x80) >> 7;
val <<= 1;
val |= bit;

mmu_write_byte(z80->mmu, z80->regs.hl, val);
set_flags_bitshift(z80, val, bit);
z80->regs.pc++;
return 15;
}

/*
RLC (IXY+d)
TODO
*/

/*
RL r
TODO
*/
static uint8_t z80_inst_rl_r(Z80 *z80, uint8_t opcode)
{
uint8_t *reg = extract_reg(z80, opcode << 3);
uint8_t carry = get_flag(z80, FLAG_CARRY);
uint8_t bit = ((*reg) & 0x80) >> 7;
(*reg) <<= 1;
(*reg) |= carry;

set_flags_bitshift(z80, *reg, bit);
z80->regs.pc++;
return 8;
}

/*
RL (HL)
TODO
*/
static uint8_t z80_inst_rl_hl(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t val = mmu_read_byte(z80->mmu, z80->regs.hl);
uint8_t carry = get_flag(z80, FLAG_CARRY);
uint8_t bit = (val & 0x80) >> 7;
val <<= 1;
val |= carry;

mmu_write_byte(z80->mmu, z80->regs.hl, val);
set_flags_bitshift(z80, val, bit);
z80->regs.pc++;
return 15;
}

/*
RL (IXY+d)
TODO
*/

/*
RRC r
TODO
*/
static uint8_t z80_inst_rrc_r(Z80 *z80, uint8_t opcode)
{
uint8_t *reg = extract_reg(z80, opcode << 3);
uint8_t bit = (*reg) & 0x01;
(*reg) >>= 1;
(*reg) |= (bit << 7);

set_flags_bitshift(z80, *reg, bit);
z80->regs.pc++;
return 8;
}

/*
RRC (HL)
TODO
*/
static uint8_t z80_inst_rrc_hl(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t val = mmu_read_byte(z80->mmu, z80->regs.hl);
uint8_t bit = (val) & 0x01;
val >>= 1;
val |= (bit << 7);

// TODO: RLCA
mmu_write_byte(z80->mmu, z80->regs.hl, val);
set_flags_bitshift(z80, val, bit);
z80->regs.pc++;
return 15;
}

// TODO: RLA
/*
RRC (IXY+d)
TODO
*/

// TODO: RRCA
/*
RR r
TODO
*/
static uint8_t z80_inst_rr_r(Z80 *z80, uint8_t opcode)
{
uint8_t *reg = extract_reg(z80, opcode << 3);
uint8_t carry = get_flag(z80, FLAG_CARRY);
uint8_t bit = (*reg) & 0x01;
(*reg) >>= 1;
(*reg) |= (carry << 7);

// TODO: RRA
set_flags_bitshift(z80, *reg, bit);
z80->regs.pc++;
return 8;
}

// TODO: RLC r
/*
RR (HL)
TODO
*/
static uint8_t z80_inst_rr_hl(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t val = mmu_read_byte(z80->mmu, z80->regs.hl);
uint8_t carry = get_flag(z80, FLAG_CARRY);
uint8_t bit = (val) & 0x01;
val >>= 1;
val |= (carry << 7);

// TODO: RLC (HL)
mmu_write_byte(z80->mmu, z80->regs.hl, val);
set_flags_bitshift(z80, val, bit);
z80->regs.pc++;
return 15;
}

/*
RR (IXY+d)
TODO
*/

/*
SLA r
TODO
*/
static uint8_t z80_inst_sla_r(Z80 *z80, uint8_t opcode)
{
uint8_t *reg = extract_reg(z80, opcode << 3);
uint8_t msb = ((*reg) & 0x80) >> 7;
(*reg) <<= 1;

// TODO: RLC (IXY+d)
set_flags_bitshift(z80, *reg, msb);
z80->regs.pc++;
return 8;
}

// TODO: RL r
/*
SLA (HL)
TODO
*/
static uint8_t z80_inst_sla_hl(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t val = mmu_read_byte(z80->mmu, z80->regs.hl);
uint8_t msb = (val & 0x80) >> 7;
val <<= 1;

// TODO: RL (HL)
mmu_write_byte(z80->mmu, z80->regs.hl, val);
set_flags_bitshift(z80, val, msb);
z80->regs.pc++;
return 15;
}

// TODO: RL (IXY+d)
/*
SLA (IXY+d)
TODO
*/

// TODO: RRC r
/*
SRA r
TODO
*/
static uint8_t z80_inst_sra_r(Z80 *z80, uint8_t opcode)
{
uint8_t *reg = extract_reg(z80, opcode << 3);
uint8_t msb = (*reg) & 0x80, lsb = (*reg) & 0x01;
(*reg) >>= 1;
(*reg) |= msb;

// TODO: RRC (HL)
set_flags_bitshift(z80, *reg, lsb);
z80->regs.pc++;
return 8;
}

// TODO: RRC (IXY+d)
/*
SRA (HL)
TODO
*/
static uint8_t z80_inst_sra_hl(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t val = mmu_read_byte(z80->mmu, z80->regs.hl);
uint8_t msb = val & 0x80, lsb = val & 0x01;
val >>= 1;
val |= msb;

// TODO: RR r
mmu_write_byte(z80->mmu, z80->regs.hl, val);
set_flags_bitshift(z80, val, lsb);
z80->regs.pc++;
return 8;
}

// TODO: RR (HL)
/*
SRA (IXY+d)
TODO
*/

// TODO: RR (IXY+d)
/*
SL1 r
TODO
*/
static uint8_t z80_inst_sl1_r(Z80 *z80, uint8_t opcode)
{
uint8_t *reg = extract_reg(z80, opcode << 3);
uint8_t msb = ((*reg) & 0x80) >> 7;
(*reg) <<= 1;
(*reg) |= 1;

// TODO: SLA r
set_flags_bitshift(z80, *reg, msb);
z80->regs.pc++;
return 8;
}

// TODO: SLA (HL)
/*
SL1 (HL)
TODO
*/
static uint8_t z80_inst_sl1_hl(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t val = mmu_read_byte(z80->mmu, z80->regs.hl);
uint8_t msb = (val & 0x80) >> 7;
val <<= 1;
val |= 1;

// TODO: SLA (IXY+d)
mmu_write_byte(z80->mmu, z80->regs.hl, val);
set_flags_bitshift(z80, val, msb);
z80->regs.pc++;
return 15;
}

// TODO: SRA r
/*
SL1 (IXY+d)
TODO
*/

// TODO: SRA (HL)
/*
SRL r
TODO
*/
static uint8_t z80_inst_srl_r(Z80 *z80, uint8_t opcode)
{
uint8_t *reg = extract_reg(z80, opcode << 3);
uint8_t lsb = (*reg) & 0x01;
(*reg) >>= 1;

// TODO: SRA (IXY+d)
set_flags_bitshift(z80, *reg, lsb);
z80->regs.pc++;
return 8;
}

// TODO: SRL r
/*
SRL (HL)
TODO
*/
static uint8_t z80_inst_srl_hl(Z80 *z80, uint8_t opcode)
{
(void) opcode;
uint8_t val = mmu_read_byte(z80->mmu, z80->regs.hl);
uint8_t lsb = val & 0x01;
val >>= 1;

// TODO: SRL (HL)
mmu_write_byte(z80->mmu, z80->regs.hl, val);
set_flags_bitshift(z80, val, lsb);
z80->regs.pc++;
return 8;
}

// TODO: SRL (IXY+d)
/*
SRL (IXY+d)
TODO
*/

// TODO: RLD

@@ -1341,13 +1703,10 @@ static uint8_t z80_inst_dec_ss(Z80 *z80, uint8_t opcode)
*/
static uint8_t z80_inst_bit_b_r(Z80 *z80, uint8_t opcode)
{
uint8_t *reg = extract_reg(z80, opcode << 3);
uint8_t val = *extract_reg(z80, opcode << 3);
uint8_t bit = (opcode >> 3) & 0x07;
bool z = (((*reg) >> bit) & 1) == 0;
if (z)
set_flags(z80, 0, 0, 1, 0, 1, 0, 1, 0, 0xFE);
else
set_flags(z80, 0, 0, 0, bit == 3, 1, bit == 5, 0, bit == 7, 0xFE);

set_flags_bit(z80, val, bit);
z80->regs.pc++;
return 8;
}
@@ -1361,11 +1720,8 @@ static uint8_t z80_inst_bit_b_hl(Z80 *z80, uint8_t opcode)
{
uint8_t val = mmu_read_byte(z80->mmu, z80->regs.hl);
uint8_t bit = (opcode >> 3) & 0x07;
bool z = ((val >> bit) & 1) == 0;
if (z)
set_flags(z80, 0, 0, 1, 0, 1, 0, 1, 0, 0xFE);
else
set_flags(z80, 0, 0, 0, bit == 3, 1, bit == 5, 0, bit == 7, 0xFE);

set_flags_bit(z80, val, bit);
z80->regs.pc++;
return 8;
}
@@ -1379,11 +1735,8 @@ static uint8_t z80_inst_bit_b_ixy(Z80 *z80, uint8_t opcode)
uint16_t addr = get_index_addr(z80, z80->regs.pc - 1);
uint8_t val = mmu_read_byte(z80->mmu, addr);
uint8_t bit = (opcode >> 3) & 0x07;
bool z = ((val >> bit) & 1) == 0;
if (z)
set_flags(z80, 0, 0, 1, 0, 1, 0, 1, 0, 0xFE);
else
set_flags(z80, 0, 0, 0, bit == 3, 1, bit == 5, 0, bit == 7, 0xFE);

set_flags_bit(z80, val, bit);
z80->regs.pc++;
return 8;
}


+ 78
- 78
src/z80_tables.inc.c View File

@@ -9,7 +9,7 @@ static DispatchTable instruction_table = {
[0x04] = z80_inst_inc_r,
[0x05] = z80_inst_dec_r,
[0x06] = z80_inst_ld_r_n,
[0x07] = z80_inst_unimplemented, // TODO
[0x07] = z80_inst_rlca,
[0x08] = z80_inst_ex_af_af,
[0x09] = z80_inst_add_hl_ss,
[0x0A] = z80_inst_ld_a_bcde,
@@ -17,7 +17,7 @@ static DispatchTable instruction_table = {
[0x0C] = z80_inst_inc_r,
[0x0D] = z80_inst_dec_r,
[0x0E] = z80_inst_ld_r_n,
[0x0F] = z80_inst_unimplemented, // TODO
[0x0F] = z80_inst_rrca,
[0x10] = z80_inst_djnz_e,
[0x11] = z80_inst_ld_dd_nn,
[0x12] = z80_inst_ld_bcde_a,
@@ -25,7 +25,7 @@ static DispatchTable instruction_table = {
[0x14] = z80_inst_inc_r,
[0x15] = z80_inst_dec_r,
[0x16] = z80_inst_ld_r_n,
[0x17] = z80_inst_unimplemented, // TODO
[0x17] = z80_inst_rla,
[0x18] = z80_inst_jr_e,
[0x19] = z80_inst_add_hl_ss,
[0x1A] = z80_inst_ld_a_bcde,
@@ -33,7 +33,7 @@ static DispatchTable instruction_table = {
[0x1C] = z80_inst_inc_r,
[0x1D] = z80_inst_dec_r,
[0x1E] = z80_inst_ld_r_n,
[0x1F] = z80_inst_unimplemented, // TODO
[0x1F] = z80_inst_rra,
[0x20] = z80_inst_jr_cc_e,
[0x21] = z80_inst_ld_dd_nn,
[0x22] = z80_inst_ld_inn_hl,
@@ -335,7 +335,7 @@ static DispatchTable instruction_table_extended = {
[0x47] = z80_inst_ld_i_a,
[0x48] = z80_inst_in_r_c,
[0x49] = z80_inst_out_c_r,
[0x4A] = z80_inst_unimplemented, // TODO
[0x4A] = z80_inst_adc_hl_ss,
[0x4B] = z80_inst_ld_dd_inn,
[0x4C] = z80_inst_unimplemented, // TODO
[0x4D] = z80_inst_reti,
@@ -351,7 +351,7 @@ static DispatchTable instruction_table_extended = {
[0x57] = z80_inst_unimplemented, // TODO
[0x58] = z80_inst_in_r_c,
[0x59] = z80_inst_out_c_r,
[0x5A] = z80_inst_unimplemented, // TODO
[0x5A] = z80_inst_adc_hl_ss,
[0x5B] = z80_inst_ld_dd_inn,
[0x5C] = z80_inst_unimplemented, // TODO
[0x5D] = z80_inst_retn,
@@ -367,7 +367,7 @@ static DispatchTable instruction_table_extended = {
[0x67] = z80_inst_unimplemented, // TODO
[0x68] = z80_inst_in_r_c,
[0x69] = z80_inst_out_c_r,
[0x6A] = z80_inst_unimplemented, // TODO
[0x6A] = z80_inst_adc_hl_ss,
[0x6B] = z80_inst_ld_dd_inn,
[0x6C] = z80_inst_unimplemented, // TODO
[0x6D] = z80_inst_retn,
@@ -383,7 +383,7 @@ static DispatchTable instruction_table_extended = {
[0x77] = z80_inst_nop2,
[0x78] = z80_inst_in_r_c,
[0x79] = z80_inst_out_c_r,
[0x7A] = z80_inst_unimplemented, // TODO
[0x7A] = z80_inst_adc_hl_ss,
[0x7B] = z80_inst_ld_dd_inn,
[0x7C] = z80_inst_unimplemented, // TODO
[0x7D] = z80_inst_retn,
@@ -520,70 +520,70 @@ static DispatchTable instruction_table_extended = {
};

static DispatchTable instruction_table_bits = {
[0x00] = z80_inst_unimplemented, // TODO
[0x01] = z80_inst_unimplemented, // TODO
[0x02] = z80_inst_unimplemented, // TODO
[0x03] = z80_inst_unimplemented, // TODO
[0x04] = z80_inst_unimplemented, // TODO
[0x05] = z80_inst_unimplemented, // TODO
[0x06] = z80_inst_unimplemented, // TODO
[0x07] = z80_inst_unimplemented, // TODO
[0x08] = z80_inst_unimplemented, // TODO
[0x09] = z80_inst_unimplemented, // TODO
[0x0A] = z80_inst_unimplemented, // TODO
[0x0B] = z80_inst_unimplemented, // TODO
[0x0C] = z80_inst_unimplemented, // TODO
[0x0D] = z80_inst_unimplemented, // TODO
[0x0E] = z80_inst_unimplemented, // TODO
[0x0F] = z80_inst_unimplemented, // TODO
[0x10] = z80_inst_unimplemented, // TODO
[0x11] = z80_inst_unimplemented, // TODO
[0x12] = z80_inst_unimplemented, // TODO
[0x13] = z80_inst_unimplemented, // TODO
[0x14] = z80_inst_unimplemented, // TODO
[0x15] = z80_inst_unimplemented, // TODO
[0x16] = z80_inst_unimplemented, // TODO
[0x17] = z80_inst_unimplemented, // TODO
[0x18] = z80_inst_unimplemented, // TODO
[0x19] = z80_inst_unimplemented, // TODO
[0x1A] = z80_inst_unimplemented, // TODO
[0x1B] = z80_inst_unimplemented, // TODO
[0x1C] = z80_inst_unimplemented, // TODO
[0x1D] = z80_inst_unimplemented, // TODO
[0x1E] = z80_inst_unimplemented, // TODO
[0x1F] = z80_inst_unimplemented, // TODO
[0x20] = z80_inst_unimplemented, // TODO
[0x21] = z80_inst_unimplemented, // TODO
[0x22] = z80_inst_unimplemented, // TODO
[0x23] = z80_inst_unimplemented, // TODO
[0x24] = z80_inst_unimplemented, // TODO
[0x25] = z80_inst_unimplemented, // TODO
[0x26] = z80_inst_unimplemented, // TODO
[0x27] = z80_inst_unimplemented, // TODO
[0x28] = z80_inst_unimplemented, // TODO
[0x29] = z80_inst_unimplemented, // TODO
[0x2A] = z80_inst_unimplemented, // TODO
[0x2B] = z80_inst_unimplemented, // TODO
[0x2C] = z80_inst_unimplemented, // TODO
[0x2D] = z80_inst_unimplemented, // TODO
[0x2E] = z80_inst_unimplemented, // TODO
[0x2F] = z80_inst_unimplemented, // TODO
[0x30] = z80_inst_unimplemented, // TODO
[0x31] = z80_inst_unimplemented, // TODO
[0x32] = z80_inst_unimplemented, // TODO
[0x33] = z80_inst_unimplemented, // TODO
[0x34] = z80_inst_unimplemented, // TODO
[0x35] = z80_inst_unimplemented, // TODO
[0x36] = z80_inst_unimplemented, // TODO
[0x37] = z80_inst_unimplemented, // TODO
[0x38] = z80_inst_unimplemented, // TODO
[0x39] = z80_inst_unimplemented, // TODO
[0x3A] = z80_inst_unimplemented, // TODO
[0x3B] = z80_inst_unimplemented, // TODO
[0x3C] = z80_inst_unimplemented, // TODO
[0x3D] = z80_inst_unimplemented, // TODO
[0x3E] = z80_inst_unimplemented, // TODO
[0x3F] = z80_inst_unimplemented, // TODO
[0x00] = z80_inst_rlc_r,
[0x01] = z80_inst_rlc_r,
[0x02] = z80_inst_rlc_r,
[0x03] = z80_inst_rlc_r,
[0x04] = z80_inst_rlc_r,
[0x05] = z80_inst_rlc_r,
[0x06] = z80_inst_rlc_hl,
[0x07] = z80_inst_rlc_r,
[0x08] = z80_inst_rrc_r,
[0x09] = z80_inst_rrc_r,
[0x0A] = z80_inst_rrc_r,
[0x0B] = z80_inst_rrc_r,
[0x0C] = z80_inst_rrc_r,
[0x0D] = z80_inst_rrc_r,
[0x0E] = z80_inst_rrc_hl,
[0x0F] = z80_inst_rrc_r,
[0x10] = z80_inst_rl_r,
[0x11] = z80_inst_rl_r,
[0x12] = z80_inst_rl_r,
[0x13] = z80_inst_rl_r,
[0x14] = z80_inst_rl_r,
[0x15] = z80_inst_rl_r,
[0x16] = z80_inst_rl_hl,
[0x17] = z80_inst_rl_r,
[0x18] = z80_inst_rr_r,
[0x19] = z80_inst_rr_r,
[0x1A] = z80_inst_rr_r,
[0x1B] = z80_inst_rr_r,
[0x1C] = z80_inst_rr_r,
[0x1D] = z80_inst_rr_r,
[0x1E] = z80_inst_rr_hl,
[0x1F] = z80_inst_rr_r,
[0x20] = z80_inst_sla_r,
[0x21] = z80_inst_sla_r,
[0x22] = z80_inst_sla_r,
[0x23] = z80_inst_sla_r,
[0x24] = z80_inst_sla_r,
[0x25] = z80_inst_sla_r,
[0x26] = z80_inst_sla_hl,
[0x27] = z80_inst_sla_r,
[0x28] = z80_inst_sra_r,
[0x29] = z80_inst_sra_r,
[0x2A] = z80_inst_sra_r,
[0x2B] = z80_inst_sra_r,
[0x2C] = z80_inst_sra_r,
[0x2D] = z80_inst_sra_r,
[0x2E] = z80_inst_sra_hl,
[0x2F] = z80_inst_sra_r,
[0x30] = z80_inst_sl1_r,
[0x31] = z80_inst_sl1_r,
[0x32] = z80_inst_sl1_r,
[0x33] = z80_inst_sl1_r,
[0x34] = z80_inst_sl1_r,
[0x35] = z80_inst_sl1_r,
[0x36] = z80_inst_sl1_hl,
[0x37] = z80_inst_sl1_r,
[0x38] = z80_inst_srl_r,
[0x39] = z80_inst_srl_r,
[0x3A] = z80_inst_srl_r,
[0x3B] = z80_inst_srl_r,
[0x3C] = z80_inst_srl_r,
[0x3D] = z80_inst_srl_r,
[0x3E] = z80_inst_srl_hl,
[0x3F] = z80_inst_srl_r,
[0x40] = z80_inst_bit_b_r,
[0x41] = z80_inst_bit_b_r,
[0x42] = z80_inst_bit_b_r,
@@ -788,7 +788,7 @@ static DispatchTable instruction_table_index = {
[0x06] = z80_inst_nop2,
[0x07] = z80_inst_nop2,
[0x08] = z80_inst_nop2,
[0x09] = z80_inst_unimplemented, // TODO
[0x09] = z80_inst_add_ixy_ss,
[0x0A] = z80_inst_nop2,
[0x0B] = z80_inst_nop2,
[0x0C] = z80_inst_nop2,
@@ -804,7 +804,7 @@ static DispatchTable instruction_table_index = {
[0x16] = z80_inst_nop2,
[0x17] = z80_inst_nop2,
[0x18] = z80_inst_nop2,
[0x19] = z80_inst_unimplemented, // TODO
[0x19] = z80_inst_add_ixy_ss,
[0x1A] = z80_inst_nop2,
[0x1B] = z80_inst_nop2,
[0x1C] = z80_inst_nop2,
@@ -814,15 +814,15 @@ static DispatchTable instruction_table_index = {
[0x20] = z80_inst_nop2,
[0x21] = z80_inst_ld_ixy_nn,
[0x22] = z80_inst_ld_inn_ixy,
[0x23] = z80_inst_unimplemented, // TODO
[0x23] = z80_inst_inc_xy,
[0x24] = z80_inst_unimplemented, // TODO
[0x25] = z80_inst_unimplemented, // TODO
[0x26] = z80_inst_unimplemented, // TODO
[0x27] = z80_inst_nop2,
[0x28] = z80_inst_nop2,
[0x29] = z80_inst_unimplemented, // TODO
[0x29] = z80_inst_add_ixy_ss,
[0x2A] = z80_inst_ld_ixy_inn,
[0x2B] = z80_inst_unimplemented, // TODO
[0x2B] = z80_inst_dec_xy,
[0x2C] = z80_inst_unimplemented, // TODO
[0x2D] = z80_inst_unimplemented, // TODO
[0x2E] = z80_inst_unimplemented, // TODO
@@ -836,7 +836,7 @@ static DispatchTable instruction_table_index = {
[0x36] = z80_inst_ld_ixy_n,
[0x37] = z80_inst_nop2,
[0x38] = z80_inst_nop2,
[0x39] = z80_inst_unimplemented, // TODO
[0x39] = z80_inst_add_ixy_ss,
[0x3A] = z80_inst_nop2,
[0x3B] = z80_inst_nop2,
[0x3C] = z80_inst_nop2,


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