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|
# license:BSD-3-Clause
# copyright-holders:David Haywood
# xavix opcodes
callf_xa3
read_stack(SP);
write_special_stack(get_codebank());
dec_special_stack();
TMP2 = read_pc();
TMP = read_pc();
//read_stack(SP);
write_stack(SP, PC>>8);
dec_SP();
write_stack(SP, PC);
dec_SP();
TMP = set_h(TMP, read_pc());
PC = TMP;
set_codebank(TMP2);
prefetch();
jmp_xa3
TMP2 = read_pc();
TMP = read_pc();
TMP = set_h(TMP, read_pc());
PC = TMP;
set_codebank(TMP2);
prefetch();
retf_imp
read_pc_noinc();
read_stack(SP);
inc_SP();
PC = read_stack(SP);
inc_SP();
PC = set_h(PC, read_stack(SP));
inc_special_stack();
TMP2 = read_special_stack();
set_codebank(TMP2);
read_pc();
prefetch();
brk_xav_imp
// there is code in some games to indicate this doesn't always push the far bank to the stack..
// The 6502 bug when a nmi occurs in a brk is reproduced (case !irq_taken && nmi_pending)
if(irq_taken) {
read_pc_noinc();
} else {
read_pc();
}
write_special_stack(get_codebank());
set_codebank(0x00); // epo_efdx, rad_ping and rad_mtrk strongly suggest that interrupts must force bank 0 as code jumps to a ROM pointer stored earlier / a fixed pointer to a rom address in bank 0
dec_special_stack();
write_stack(SP, PC >> 8);
dec_SP();
write_stack(SP, PC);
dec_SP();
write_stack(SP, irq_taken ? P & ~F_B : P);
dec_SP();
if(nmi_pending) {
if (m_vector_callback.isnull())
{
PC = read_arg(0xfffa);
PC = set_h(PC, read_arg(0xfffb));
}
else
{
if (m_vector_callback(0,1) != -1)
{
PC = m_vector_callback(0,1);
PC = set_h(PC, m_vector_callback(0,0));
}
else
{
PC = read_arg(0xfffa);
PC = set_h(PC, read_arg(0xfffb));
}
}
nmi_pending = false;
standard_irq_callback(NMI_LINE);
} else {
if (m_vector_callback.isnull())
{
PC = read_arg(0xfffe);
PC = set_h(PC, read_arg(0xffff));
}
else
{
if (m_vector_callback(1,1) != -1)
{
PC = m_vector_callback(1,1);
PC = set_h(PC, m_vector_callback(1,0));
}
else
{
PC = read_arg(0xfffe);
PC = set_h(PC, read_arg(0xffff));
}
}
if(irq_taken)
standard_irq_callback(IRQ_LINE);
}
irq_taken = false;
P |= F_I; // Do *not* move after the prefetch
prefetch();
inst_state = -1;
rti_xav_imp
read_pc_noinc();
read_stack(SP);
inc_SP();
P = read_stack(SP) | (F_B|F_E);
inc_SP();
PC = read_stack(SP);
inc_SP();
PC = set_h(PC, read_stack(SP));
inc_special_stack();
TMP2 = read_special_stack();
set_codebank(TMP2);
prefetch();
# opcodes below are modified to access stack through different handlers
pha_xav_imp
read_pc_noinc();
write_stack(SP, A);
dec_SP();
prefetch();
php_xav_imp
read_pc_noinc();
write_stack(SP, P);
dec_SP();
prefetch();
jsr_xav_adr
TMP = read_pc();
read_stack(SP);
write_stack(SP, PC>>8);
dec_SP();
write_stack(SP, PC);
dec_SP();
TMP = set_h(TMP, read_pc());
PC = TMP;
prefetch();
pla_xav_imp
read_pc_noinc();
read_stack(SP);
inc_SP();
A = read_stack(SP);
set_nz(A);
prefetch();
plp_xav_imp
read_pc_noinc();
read_stack(SP);
inc_SP();
TMP = read_stack(SP) | (F_B|F_E);
prefetch();
P = TMP; // Do *not* move it before the prefetch
rts_xav_imp
read_pc_noinc();
read_stack(SP);
inc_SP();
PC = read_stack(SP);
inc_SP();
PC = set_h(PC, read_stack(SP));
read_pc();
prefetch();
# opcodes below are modified to access zero page through different handlers
lda_xav_idy
TMP2 = read_pc(); // we need to fetch the zero page part from zero page, but the rest as if zero page wasn't there, similar to the 6509
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y)); // dummy read
}
A = read(TMP+Y);
set_nz(A);
prefetch();
adc_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y)); // dummy read
}
do_adc(read(TMP+Y));
prefetch();
cmp_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y)); // dummy read
}
do_cmp(A, read(TMP+Y));
prefetch();
sbc_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y)); // dummy read
}
do_sbc(read(TMP+Y));
prefetch();
eor_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y)); // dummy read
}
A ^= read(TMP+Y);
set_nz(A);
prefetch();
and_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y)); // dummy read
}
A &= read(TMP+Y);
set_nz(A);
prefetch();
ora_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y)); // dummy read
}
A |= read(TMP+Y);
set_nz(A);
prefetch();
ora_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
A |= read(TMP);
set_nz(A);
prefetch();
and_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
A &= read(TMP);
set_nz(A);
prefetch();
eor_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
A ^= read(TMP);
set_nz(A);
prefetch();
adc_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
do_adc(read(TMP));
prefetch();
lda_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
A = read(TMP);
set_nz(A);
prefetch();
cmp_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
do_cmp(A, read(TMP));
prefetch();
sbc_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
do_sbc(read(TMP));
prefetch();
sta_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
read_zeropage(set_l(TMP, TMP+Y)); // dummy read
write(TMP+Y, A); // TODO
prefetch();
sta_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
write(TMP, A); // TODO
prefetch();
adc_xav_zpg
TMP = read_pc();
TMP = read_zeropage(TMP);
do_adc(TMP);
prefetch();
and_xav_zpg
TMP = read_pc();
A &= read_zeropage(TMP);
set_nz(A);
prefetch();
asl_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_asl(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
bit_xav_zpg
TMP = read_pc();
do_bit(read_zeropage(TMP));
prefetch();
cmp_xav_zpg
TMP = read_pc();
TMP = read_zeropage(TMP);
do_cmp(A, TMP);
prefetch();
cpx_xav_zpg
TMP = read_pc();
TMP = read_zeropage(TMP);
do_cmp(X, TMP);
prefetch();
cpy_xav_zpg
TMP = read_pc();
TMP = read_zeropage(TMP);
do_cmp(Y, TMP);
prefetch();
dec_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2--;
set_nz(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
eor_xav_zpg
TMP = read_pc();
A ^= read_zeropage(TMP);
set_nz(A);
prefetch();
inc_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2++;
set_nz(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
lda_xav_zpg
TMP = read_pc();
A = read_zeropage(TMP);
set_nz(A);
prefetch();
ldx_xav_zpg
TMP = read_pc();
X = read_zeropage(TMP);
set_nz(X);
prefetch();
ldy_xav_zpg
TMP = read_pc();
Y = read_zeropage(TMP);
set_nz(Y);
prefetch();
lsr_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_lsr(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
ora_xav_zpg
TMP = read_pc();
A |= read_zeropage(TMP);
set_nz(A);
prefetch();
rol_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_rol(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
ror_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_ror(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
sbc_xav_zpg
TMP = read_pc();
TMP = read_zeropage(TMP);
do_sbc(TMP);
prefetch();
sta_xav_zpg
TMP = read_pc();
write_zeropage(TMP, A);
prefetch();
stx_xav_zpg
TMP = read_pc();
write_zeropage(TMP, X);
prefetch();
sty_xav_zpg
TMP = read_pc();
write_zeropage(TMP, Y);
prefetch();
dcp_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2--;
write_zeropage(TMP, TMP2);
do_cmp(A, TMP2);
prefetch();
isb_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2++;
write_zeropage(TMP, TMP2);
do_sbc(TMP2);
prefetch();
lax_xav_zpg
TMP = read_pc();
A = X = read_zeropage(TMP);
set_nz(A);
prefetch();
rla_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_rol(TMP2);
write_zeropage(TMP, TMP2);
A &= TMP2;
set_nz(A);
prefetch();
rra_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_ror(TMP2);
write_zeropage(TMP, TMP2);
do_adc(TMP2);
prefetch();
sax_xav_zpg
TMP = read_pc();
TMP2 = A & X;
write_zeropage(TMP, TMP2);
prefetch();
slo_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_asl(TMP2);
write_zeropage(TMP, TMP2);
A |= TMP2;
set_nz(A);
prefetch();
sre_xav_zpg
TMP = read_pc();
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_lsr(TMP2);
write_zeropage(TMP, TMP2);
A ^= TMP2;
set_nz(A);
prefetch();
nop_xav_zpg
TMP = read_pc();
read_zeropage(TMP); // dummy read
prefetch();
# more zero page changes
ldx_xav_zpy
TMP = read_pc();
read_zeropage(TMP); // dummy read
X = read_zeropage(uint8_t(TMP+Y));
set_nz(X);
prefetch();
stx_xav_zpy
TMP = read_pc();
read_zeropage(TMP); // dummy read
write_zeropage(uint8_t(TMP+Y), X);
prefetch();
lax_xav_zpy
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+Y);
A = X = read_zeropage(TMP);
set_nz(A);
prefetch();
sax_xav_zpy
TMP = read_pc();
read_zeropage(TMP); // dummy reaad
TMP = uint8_t(TMP+Y);
TMP2 = A & X;
write_zeropage(TMP, TMP2);
prefetch();
# more zero page changes
adc_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = read_zeropage(uint8_t(TMP+X));
do_adc(TMP);
prefetch();
and_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
A &= read_zeropage(uint8_t(TMP+X));
set_nz(A);
prefetch();
asl_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_asl(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
cmp_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = read_zeropage(uint8_t(TMP+X));
do_cmp(A, TMP);
prefetch();
dec_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2--;
set_nz(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
eor_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
A ^= read_zeropage(uint8_t(TMP+X));
set_nz(A);
prefetch();
inc_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2++;
set_nz(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
lda_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
A = read_zeropage(uint8_t(TMP+X));
set_nz(A);
prefetch();
ldy_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
Y = read_zeropage(uint8_t(TMP+X));
set_nz(Y);
prefetch();
lsr_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_lsr(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
ora_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
A |= read_zeropage(uint8_t(TMP+X));
set_nz(A);
prefetch();
rol_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_rol(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
ror_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_ror(TMP2);
write_zeropage(TMP, TMP2);
prefetch();
sbc_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = read_zeropage(uint8_t(TMP+X));
do_sbc(TMP);
prefetch();
sta_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
write_zeropage(uint8_t(TMP+X), A);
prefetch();
sty_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
write_zeropage(uint8_t(TMP+X), Y);
prefetch();
dcp_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2--;
write_zeropage(TMP, TMP2);
do_cmp(A, TMP2);
prefetch();
isb_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2++;
write_zeropage(TMP, TMP2);
do_sbc(TMP2);
prefetch();
rla_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_rol(TMP2);
write_zeropage(TMP, TMP2);
A &= TMP2;
set_nz(A);
prefetch();
rra_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_ror(TMP2);
write_zeropage(TMP, TMP2);
do_adc(TMP2);
prefetch();
slo_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_asl(TMP2);
write_zeropage(TMP, TMP2);
A |= TMP2;
set_nz(A);
prefetch();
sre_xav_zpx
TMP = read_pc();
read_zeropage(TMP); // dummy read
TMP = uint8_t(TMP+X);
TMP2 = read_zeropage(TMP);
write_zeropage(TMP, TMP2); // dummy write
TMP2 = do_lsr(TMP2);
write_zeropage(TMP, TMP2);
A ^= TMP2;
set_nz(A);
prefetch();
nop_xav_zpx
TMP = read_pc();
read_zeropage(TMP);
read_zeropage(uint8_t(TMP+X));
prefetch();
####
slo_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2 = do_asl(TMP2);
write(TMP, TMP2);
A |= TMP2;
set_nz(A);
prefetch();
# idx with zero page changes
rla_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2 = do_rol(TMP2);
write(TMP, TMP2);
A &= TMP2;
set_nz(A);
prefetch();
sre_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2 = do_lsr(TMP2);
write(TMP, TMP2);
A ^= TMP2;
set_nz(A);
prefetch();
rra_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2 = do_ror(TMP2);
write(TMP, TMP2);
do_adc(TMP2);
prefetch();
sax_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
TMP2 = A & X;
write(TMP, TMP2);
prefetch();
lax_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dumm read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
A = X = read(TMP);
set_nz(A);
prefetch();
dcp_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2--;
write(TMP, TMP2);
do_cmp(A, TMP2);
prefetch();
isb_xav_idx
TMP2 = read_pc();
read_zeropage(TMP2); // dummy read
TMP2 += X;
TMP = read_zeropage(TMP2 & 0xff);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2++;
write(TMP, TMP2);
do_sbc(TMP2);
prefetch();
# idy with zero page changes
slo_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
read(set_l(TMP, TMP+Y)); // dummy read
TMP += Y;
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2 = do_asl(TMP2);
write(TMP, TMP2);
A |= TMP2;
set_nz(A);
prefetch();
rla_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
read(set_l(TMP, TMP+Y)); // dummy read
TMP += Y;
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2 = do_rol(TMP2);
write(TMP, TMP2);
A &= TMP2;
set_nz(A);
prefetch();
sre_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
read(set_l(TMP, TMP+Y)); // dummy read
TMP += Y;
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2 = do_lsr(TMP2);
write(TMP, TMP2);
A ^= TMP2;
set_nz(A);
prefetch();
rra_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
read(set_l(TMP, TMP+Y)); // dummy read
TMP += Y;
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2 = do_ror(TMP2);
write(TMP, TMP2);
do_adc(TMP2);
prefetch();
sha_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
read(set_l(TMP, TMP+Y)); // dummy read
TMP2 = A & X & ((TMP >> 8)+1);
if(page_changing(TMP, Y))
TMP = set_h(TMP+Y, TMP2);
else
TMP += Y;
write(TMP, TMP2);
prefetch();
lax_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
if(page_changing(TMP, Y)) {
read(set_l(TMP, TMP+Y)); // dummy read
}
A = X = read(TMP+Y);
set_nz(A);
prefetch();
dcp_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
read(set_l(TMP, TMP+Y)); // dummy read
TMP += Y;
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2--;
write(TMP, TMP2);
do_cmp(A, TMP2);
prefetch();
isb_xav_idy
TMP2 = read_pc();
TMP = read_zeropage(TMP2);
TMP = set_h(TMP, read_zeropage((TMP2+1) & 0xff));
read(set_l(TMP, TMP+Y)); // dummy read
TMP += Y;
TMP2 = read(TMP);
write(TMP, TMP2);
TMP2++;
write(TMP, TMP2);
do_sbc(TMP2);
prefetch();
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