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|
# m740 opcodes
set_imp
read_pc_noinc();
P |= F_T;
inst_state_base = 0x100;
prefetch();
clt_imp
read_pc_noinc();
P &= ~F_T;
inst_state_base = 0;
prefetch();
ldm_imz
TMP = read_pc();
TMP2 = read_pc();
write(TMP2, TMP);
prefetch();
jsr_spg
TMP = read_pc_noinc();
read(SP);
write(SP, PC>>8);
dec_SP();
write(SP, PC);
dec_SP();
TMP = set_h(TMP, 0xff);
PC = TMP;
prefetch();
clb_bac
read_pc_noinc();
A = do_clb(A, (IR>>5) & 7);
prefetch();
seb_bac
read_pc_noinc();
A = do_seb(A, (IR>>5) & 7);
prefetch();
clb_biz
TMP = read_pc();
TMP2 = read(TMP);
TMP2 = do_clb(TMP2, (IR>>5) & 7);
write(TMP, TMP2);
prefetch();
seb_biz
TMP = read_pc();
TMP2 = read(TMP);
TMP2 = do_seb(TMP2, (IR>>5) & 7);
write(TMP, TMP2);
prefetch();
bbc_bzr
TMP = read_pc();
TMP2 = read(TMP);
TMP = read_pc();
read_pc_noinc();
if(!(TMP2 & (1 << ((IR>>5) & 7)))) {
PC += INT8(TMP);
}
prefetch();
bbs_bzr
TMP = read_pc();
TMP2 = read(TMP);
TMP = read_pc();
read_pc_noinc();
if(TMP2 & (1 << ((IR>>5) & 7))) {
PC += INT8(TMP);
}
prefetch();
bbc_bar
TMP = read_pc();
read_pc_noinc();
if(!(A & (1 << ((IR>>5) & 7)))) {
PC += INT8(TMP);
}
prefetch();
bbs_bar
TMP = read_pc();
read_pc_noinc();
if(A & (1 << ((IR>>5) & 7))) {
PC += INT8(TMP);
}
prefetch();
rrf_zpg
TMP = read_pc();
TMP2 = read(TMP);
TMP2 = do_rrf(TMP2);
write(TMP, TMP2);
prefetch();
bra_rel
TMP = read_pc();
read_pc_noinc();
if(page_changing(PC, INT8(TMP))) {
read_arg(set_l(PC, PC+INT8(TMP)));
}
PC += INT8(TMP);
prefetch();
jmp_zpi
TMP2 = read_pc();
TMP = read(TMP2 & 0xff);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
PC = TMP;
prefetch();
reset740
PC = read_arg(0xfffe);
PC = set_h(PC, read_arg(0xffff));
prefetch();
inst_state = -1;
brk740_imp
// The 6502 bug when a nmi occurs in a brk is reproduced (case !irq_taken && nmi_state)
if(irq_taken) {
read_pc_noinc();
} else {
read_pc();
}
write(SP, PC >> 8);
dec_SP();
write(SP, PC);
dec_SP();
write(SP, irq_taken ? P & ~F_B : P);
dec_SP();
if(nmi_state) {
PC = read_arg(0xfffa);
PC = set_h(PC, read_arg(0xfffb));
nmi_state = false;
standard_irq_callback(NMI_LINE);
} else {
PC = read_arg(m_irq_vector);
PC = set_h(PC, read_arg(m_irq_vector+1));
if(irq_taken)
standard_irq_callback(IRQ_LINE);
}
irq_taken = false;
P |= F_I; // Do *not* move after the prefetch
prefetch();
inst_state = -1;
# T=1 opcodes
adct_aba
TMP = read_pc();
TMP = set_h(TMP, read_pc());
TMP = read(TMP);
TMP2 = read(X);
do_adct(TMP);
write(X, TMP2);
prefetch();
adct_abx
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, X)) {
read(set_l(TMP, TMP+X));
}
TMP += X;
TMP = read(TMP);
TMP2 = read(X);
do_adct(TMP);
write(X, TMP2);
prefetch();
adct_aby
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP += Y;
TMP = read(TMP);
TMP2 = read(X);
do_adct(TMP);
write(X, TMP2);
prefetch();
adct_idx
TMP2 = read_pc();
read(TMP2);
TMP2 += X;
TMP = read(TMP2 & 0xff);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
TMP2 = read(X);
do_adct(read(TMP));
write(X, TMP2);
prefetch();
adct_idy
TMP2 = read_pc();
TMP = read(TMP2);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP2 = read(X);
do_adct(read(TMP+Y));
write(X, TMP2);
prefetch();
adct_imm
TMP = read_pc();
TMP2 = read(X);
do_adct(TMP);
write(X, TMP2);
prefetch();
adct_zpg
TMP = read_pc();
TMP = read(TMP);
TMP2 = read(X);
do_adct(TMP);
write(X, TMP2);
prefetch();
adct_zpx
TMP = read_pc();
read(TMP);
TMP = read(UINT8(TMP+X));
TMP2 = read(X);
do_adct(TMP);
write(X, TMP2);
prefetch();
andt_aba
TMP = read_pc();
TMP = set_h(TMP, read_pc());
TMP2 = read(X);
TMP2 &= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
andt_abx
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, X)) {
read(set_l(TMP, TMP+X));
}
TMP += X;
TMP2 = read(X);
TMP2 &= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
andt_aby
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP += Y;
TMP2 = read(X);
TMP2 &= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
andt_imm
TMP2 = read(X);
TMP2 &= read_pc();
set_nz(TMP2);
write(X, TMP2);
prefetch();
andt_idx
TMP2 = read_pc();
read(TMP2);
TMP2 += X;
TMP = read(TMP2 & 0xff);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
TMP2 = read(X);
TMP2 &= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
andt_idy
TMP2 = read_pc();
TMP = read(TMP2);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP2 = read(X);
TMP2 &= read(TMP+Y);
set_nz(TMP2);
write(X, TMP2);
prefetch();
andt_zpg
TMP = read_pc();
TMP2 = read(X);
TMP2 &= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
andt_zpx
TMP = read_pc();
read(TMP);
TMP2 = read(X);
TMP2 &= read(UINT8(TMP+X));
set_nz(TMP2);
write(X, TMP2);
prefetch();
com_zpg
TMP = read_pc();
TMP2 = read(TMP);
TMP2 ^= 0xff;
set_nz(TMP2);
write(TMP, TMP2);
prefetch();
cmpt_aba
TMP = read_pc();
TMP = set_h(TMP, read_pc());
TMP = read(TMP);
TMP2 = read(X);
do_cmp(TMP2, TMP);
prefetch();
cmpt_abx
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, X)) {
read(set_l(TMP, TMP+X));
}
TMP += X;
TMP = read(TMP);
TMP2 = read(X);
do_cmp(TMP2, TMP);
prefetch();
cmpt_aby
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP += Y;
TMP = read(TMP);
TMP2 = read(X);
do_cmp(TMP2, TMP);
prefetch();
cmpt_idx
TMP2 = read_pc();
read(TMP2);
TMP2 += X;
TMP = read(TMP2 & 0xff);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
TMP2 = read(X);
do_cmp(TMP2, read(TMP));
prefetch();
cmpt_idy
TMP2 = read_pc();
TMP = read(TMP2);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP2 = read(X);
do_cmp(TMP2, read(TMP+Y));
prefetch();
cmpt_imm
TMP = read_pc();
TMP2 = read(X);
do_cmp(TMP2, TMP);
prefetch();
cmpt_zpg
TMP = read_pc();
TMP = read(TMP);
TMP2 = read(X);
do_cmp(TMP2, TMP);
prefetch();
cmpt_zpx
TMP = read_pc();
read(TMP);
TMP = read(UINT8(TMP+X));
TMP2 = read(X);
do_cmp(TMP2, TMP);
prefetch();
dec_acc
read_pc_noinc();
A--;
set_nz(A);
prefetch();
dect_acc
read_pc_noinc();
TMP2 = read(X);
TMP2--;
set_nz(TMP2);
write(X, TMP2);
prefetch();
eort_aba
TMP = read_pc();
TMP = set_h(TMP, read_pc());
TMP2 = read(X);
TMP2 ^= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
eort_abx
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, X)) {
read(set_l(TMP, TMP+X));
}
TMP += X;
TMP2 = read(X);
TMP2 ^= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
eort_aby
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP += Y;
TMP2 = read(X);
TMP2 ^= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
eort_idx
TMP2 = read_pc();
read(TMP2);
TMP2 += X;
TMP = read(TMP2 & 0xff);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
TMP2 = read(X);
TMP2 ^= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
eort_idy
TMP2 = read_pc();
TMP = read(TMP2);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP2 = read(X);
TMP2 ^= read(TMP+Y);
set_nz(TMP2);
write(X, TMP2);
prefetch();
eort_imm
TMP2 = read(X);
TMP2 ^= read_pc();
set_nz(TMP2);
write(X, TMP2);
prefetch();
eort_zpg
TMP = read_pc();
TMP2 = read(X);
TMP2 ^= read(TMP+Y);
set_nz(TMP2);
write(X, TMP2);
prefetch();
eort_zpx
TMP = read_pc();
read(TMP);
TMP2 = read(X);
TMP2 ^= read(UINT8(TMP+X));
set_nz(TMP2);
write(X, TMP2);
prefetch();
inc_acc
read_pc_noinc();
A++;
set_nz(A);
prefetch();
inct_acc
read_pc_noinc();
TMP2 = read(X);
TMP2++;
set_nz(TMP2);
write(X, TMP2);
prefetch();
ldt_aba
TMP = read_pc();
TMP = set_h(TMP, read_pc());
TMP2 = read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ldt_abx
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, X)) {
read(set_l(TMP, TMP+X));
}
TMP2 = read(TMP + X);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ldt_aby
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP2 = read(TMP + Y);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ldt_idx
TMP2 = read_pc();
read(TMP2);
TMP2 += X;
TMP = read(TMP2 & 0xff);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
TMP2 = read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ldt_idy
TMP2 = read_pc();
TMP = read(TMP2);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP2 = read(TMP+Y);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ldt_imm
TMP2 = read_pc();
set_nz(TMP2);
write(X, TMP2);
prefetch();
ldt_zpg
TMP = read_pc();
TMP2 = read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ldt_zpx
TMP = read_pc();
read(TMP);
TMP2 = read(UINT8(TMP+X));
set_nz(TMP2);
write(X, TMP2);
prefetch();
ort_aba
TMP = read_pc();
TMP = set_h(TMP, read_pc());
TMP2 = read(X);
TMP2 |= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ort_abx
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, X)) {
read(set_l(TMP, TMP+X));
}
TMP += X;
TMP2 = read(X);
TMP2 |= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ort_aby
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP += Y;
TMP2 = read(X);
TMP2 |= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ort_imm
TMP2 = read(X);
TMP2 |= read_pc();
set_nz(TMP2);
write(X, TMP2);
prefetch();
ort_idx
TMP2 = read_pc();
read(TMP2);
TMP2 += X;
TMP = read(TMP2 & 0xff);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
TMP2 = read(X);
TMP2 |= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ort_idy
TMP2 = read_pc();
TMP = read(TMP2);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP2 = read(X);
TMP2 |= read(TMP+Y);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ort_zpg
TMP = read_pc();
TMP2 = read(X);
TMP2 |= read(TMP);
set_nz(TMP2);
write(X, TMP2);
prefetch();
ort_zpx
TMP = read_pc();
read(TMP);
TMP2 = read(X);
TMP2 |= read(UINT8(TMP+X));
set_nz(TMP2);
write(X, TMP2);
prefetch();
sbct_aba
TMP = read_pc();
TMP = set_h(TMP, read_pc());
TMP = read(TMP);
TMP2 = read(X);
do_sbct(TMP);
write(X, TMP2);
prefetch();
sbct_abx
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, X)) {
read(set_l(TMP, TMP+X));
}
TMP += X;
TMP = read(TMP);
TMP2 = read(X);
do_sbct(TMP);
write(X, TMP2);
prefetch();
sbct_aby
TMP = read_pc();
TMP = set_h(TMP, read_pc());
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP += Y;
TMP = read(TMP);
TMP2 = read(X);
do_sbct(TMP);
write(X, TMP2);
prefetch();
sbct_idx
TMP2 = read_pc();
read(TMP2);
TMP2 += X;
TMP = read(TMP2 & 0xff);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
TMP2 = read(X);
do_sbct(read(TMP));
write(X, TMP2);
prefetch();
sbct_idy
TMP2 = read_pc();
TMP = read(TMP2);
TMP = set_h(TMP, read((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y));
}
TMP2 = read(X);
do_sbct(read(TMP+Y));
write(X, TMP2);
prefetch();
sbct_imm
TMP = read_pc();
TMP2 = read(X);
do_sbct(TMP);
write(X, TMP2);
prefetch();
sbct_zpg
TMP = read_pc();
TMP = read(TMP);
TMP2 = read(X);
do_sbct(TMP);
write(X, TMP2);
prefetch();
sbct_zpx
TMP = read_pc();
read(TMP);
TMP = read(UINT8(TMP+X));
TMP2 = read(X);
do_sbct(TMP);
write(X, TMP2);
prefetch();
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