Skip to content

Instantly share code, notes, and snippets.

@luser-dr00g

luser-dr00g/a8086pi.c

Created July 11, 2015 08:25
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save luser-dr00g/e907e5beb79fb1edafda to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save luser-dr00g/e907e5beb79fb1edafda to your computer and use it in GitHub Desktop.
Download ZIP
Raw
a8086pi.c
typedef intptr_t I;
typedef uintptr_t U;
typedef short S;
typedef unsigned short US;
typedef signed char C;
typedef unsigned char UC;
typedef void V;
U o, w, d, f;
U x, y, z;
void *p;
UC halt, debug = 0, trace = 2, reg[28], null[2], mem[0xffff] = {
1, (3 << 6),
1, (3 << 6) + (4 << 3),
3, (3 << 6) + (4 << 3),
0xf4
};
UC *al;
UC *ah;
UC *cl;
UC *ch;
UC *dl;
UC *dh;
UC *bl;
UC *bh;
US *ax;
US *cx;
US *dx;
US *bx;
US *sp;
US *bp;
US *si;
US *di;
US *ip;
US *fl;
US *cs;
US *ds;
US *ss;
US *es;
V
init ()
{
I i = 0;
al = (UC *) (reg + i++);
ah = (UC *) (reg + i++);
cl = (UC *) (reg + i++);
ch = (UC *) (reg + i++);
dl = (UC *) (reg + i++);
dh = (UC *) (reg + i++);
bl = (UC *) (reg + i++);
bh = (UC *) (reg + i++);
i = 0;
ax = (US *) (reg + i);
i += 2;
cx = (US *) (reg + i);
i += 2;
dx = (US *) (reg + i);
i += 2;
bx = (US *) (reg + i);
i += 2;
sp = (US *) (reg + i);
i += 2;
bp = (US *) (reg + i);
i += 2;
si = (US *) (reg + i);
i += 2;
di = (US *) (reg + i);
i += 2;
ip = (US *) (reg + i);
i += 2;
fl = (US *) (reg + i);
i += 2;
cs = (US *) (reg + i);
i += 2;
ds = (US *) (reg + i);
i += 2;
ss = (US *) (reg + i);
i += 2;
es = (US *) (reg + i);
i += 2;
}
enum
{ CF = 1, AF = 1 << 4, ZF = 1 << 6, SF = 1 << 7, OF = 1 << 11 };
V
dump ()
{
printf ("\n");
printf ("ax" ":%04x ", *ax);
printf ("cx" ":%04x ", *cx);
printf ("dx" ":%04x ", *dx);
printf ("bx" ":%04x ", *bx);
printf ("sp" ":%04x ", *sp);
printf ("bp" ":%04x ", *bp);
printf ("si" ":%04x ", *si);
printf ("di" ":%04x ", *di);
printf ("ip" ":%04x ", *ip);
printf ("fl" ":%04x ", *fl);
if (trace)
printf ("%s %s %s %s ", *fl & CF ? "CA" : "NC", *fl & OF ? "OV" : "NO",
*fl & SF ? "SN" : "NS", *fl & ZF ? "ZR" : "NZ");
printf ("\n");
}
I
get_ (void *p, U w)
{
return w ? *(UC *) p + (((UC *) p)[1] << 8) : *(UC *) p;
}
V
put_ (void *p, U x, U w)
{
if (w)
{
*(UC *) p = x;
((UC *) p)[1] = x >> 8;
}
else
*(UC *) p = x;
}
UC
fetchb ()
{
U x = get_ (mem + (*ip)++, 0);
if (trace)
printf ("%02x(%03o) ", x, x);
return x;
}
US
fetchw ()
{
I w = fetchb ();
return w | (fetchb () << 8);
}
typedef struct rm
{
U mod, reg, r_m;
} rm;
rm
mrm (U m)
{
return (rm)
{
(m >> 6) & 3, (m >> 3) & 7, m & 7};
}
U
decreg (U reg, U w)
{
if (w)
return (U) ((US *[])
{
ax, cx, dx, bx, sp, bp, si, di}
[reg]);
else
return (U) ((UC *[])
{
al, cl, dl, bl, ah, ch, dh, bh}
[reg]);
}
U
decrm (rm r, U w)
{
U x = (U[]){ *bx + *si, *bx + *di, *bp + *si, *bp + *di, *si, *di, *bp, *bx }
[r.r_m];
switch (r.mod)
{
case 0:
if (r.r_m == 6)
return (U) (mem + fetchw ());
break;
case 1:
x += fetchb ();
break;
case 2:
x += fetchw ();
break;
case 3:
return decreg (r.r_m, w);
}
return (U) (mem + x);
}
void
addbf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
addwf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
addbt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
addwt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
addbi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
addwi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
pushes ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(es), 1);
}
void
popes ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(es) = get_ (mem + (*sp += 2) - 2, 1);
}
void
orbf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x | y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
orwf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x | y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
orbt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x | y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
orwt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x | y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
orbi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = x | y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
orwi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = x | y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
pushcs ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(cs), 1);
}
void
nop0 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
adcbf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
x += (*fl & CF);
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
adcwf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
x += (*fl & CF);
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
adcbt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
x += (*fl & CF);
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
adcwt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
x += (*fl & CF);
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
adcbi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
x += (*fl & CF);
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
adcwi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
x += (*fl & CF);
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
pushss ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(ss), 1);
}
void
popss ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(ss) = get_ (mem + (*sp += 2) - 2, 1);
}
void
sbbbf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
d ? y += *fl & CF : (x += *fl & CF);
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
sbbwf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
d ? y += *fl & CF : (x += *fl & CF);
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
sbbbt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
d ? y += *fl & CF : (x += *fl & CF);
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
sbbwt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
d ? y += *fl & CF : (x += *fl & CF);
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
sbbbi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
d ? y += *fl & CF : (x += *fl & CF);
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
sbbwi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
d ? y += *fl & CF : (x += *fl & CF);
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
pushds ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(ds), 1);
}
void
popds ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(ds) = get_ (mem + (*sp += 2) - 2, 1);
}
void
andbf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
andwf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
andbt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
andwt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
andbi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
andwi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
esseg ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
daa ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
subbf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
subwf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
subbt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
subwt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
subbi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
subwi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
csseg ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
das ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
xorbf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x ^ y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
xorwf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x ^ y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
xorbt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x ^ y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
xorwt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x ^ y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
xorbi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = x ^ y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
xorwi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = x ^ y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
ssseg ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
aaa ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
cmpbf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = null;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
cmpwf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = null;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
cmpbt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = null;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
cmpwt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = null;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
cmpbi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
p = null;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
cmpwi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
p = null;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
dsseg ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
aas ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
incax ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) ax;
x = (S) * ax;
y = 1;
f = *fl & CF;
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
inccx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) cx;
x = (S) * cx;
y = 1;
f = *fl & CF;
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
incdx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) dx;
x = (S) * dx;
y = 1;
f = *fl & CF;
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
incbx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) bx;
x = (S) * bx;
y = 1;
f = *fl & CF;
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
incsp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) sp;
x = (S) * sp;
y = 1;
f = *fl & CF;
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
incbp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) bp;
x = (S) * bp;
y = 1;
f = *fl & CF;
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
incsi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) si;
x = (S) * si;
y = 1;
f = *fl & CF;
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
incdi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) di;
x = (S) * di;
y = 1;
f = *fl & CF;
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
decax ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) ax;
x = (S) * ax;
y = 1;
f = *fl & CF;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
deccx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) cx;
x = (S) * cx;
y = 1;
f = *fl & CF;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
decdx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) dx;
x = (S) * dx;
y = 1;
f = *fl & CF;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
decbx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) bx;
x = (S) * bx;
y = 1;
f = *fl & CF;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
decsp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) sp;
x = (S) * sp;
y = 1;
f = *fl & CF;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
decbp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) bp;
x = (S) * bp;
y = 1;
f = *fl & CF;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
decsi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) si;
x = (S) * si;
y = 1;
f = *fl & CF;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
decdi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
d = 1;
p = (V *) di;
x = (S) * di;
y = 1;
f = *fl & CF;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
}
void
pushax ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(ax), 1);
}
void
pushcx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(cx), 1);
}
void
pushdx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(dx), 1);
}
void
pushbx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(bx), 1);
}
void
pushsp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(sp), 1);
}
void
pushbp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(bp), 1);
}
void
pushsi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(si), 1);
}
void
pushdi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(di), 1);
}
void
popax ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(ax) = get_ (mem + (*sp += 2) - 2, 1);
}
void
popcx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(cx) = get_ (mem + (*sp += 2) - 2, 1);
}
void
popdx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(dx) = get_ (mem + (*sp += 2) - 2, 1);
}
void
popbx ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(bx) = get_ (mem + (*sp += 2) - 2, 1);
}
void
popsp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(sp) = get_ (mem + (*sp += 2) - 2, 1);
}
void
popbp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(bp) = get_ (mem + (*sp += 2) - 2, 1);
}
void
popsi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(si) = get_ (mem + (*sp += 2) - 2, 1);
}
void
popdi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(di) = get_ (mem + (*sp += 2) - 2, 1);
}
void
nop1 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nop2 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nop3 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nop4 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nop5 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nop6 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nop7 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nop8 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nop9 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopA ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopB ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopC ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopD ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopE ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopF ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopG ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
jo ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", of);
if (of)
*ip += (S) y;;
}
void
jno ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", !(of));
if (!(of))
*ip += (S) y;;
}
void
jb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", cf);
if (cf)
*ip += (S) y;;
}
void
jnb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", !(cf));
if (!(cf))
*ip += (S) y;;
}
void
jz ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", zf);
if (zf)
*ip += (S) y;;
}
void
jnz ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", !(zf));
if (!(zf))
*ip += (S) y;;
}
void
jbe ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", cf | zf);
if (cf | zf)
*ip += (S) y;;
}
void
jnbe ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", !(cf | zf));
if (!(cf | zf))
*ip += (S) y;;
}
void
js ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", sf);
if (sf)
*ip += (S) y;;
}
void
jns ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", !(sf));
if (!(sf))
*ip += (S) y;;
}
void
jp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
jnp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
jl ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", sf ^ of);
if (sf ^ of)
*ip += (S) y;;
}
void
jnl_ ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", !(sf ^ of));
if (!(sf ^ of))
*ip += (S) y;;
}
void
jle ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", (sf ^ of) | zf);
if ((sf ^ of) | zf)
*ip += (S) y;;
}
void
jnle ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
U cf = ! !(*fl & CF), of = ! !(*fl & OF), sf = ! !(*fl & SF), zf =
! !(*fl & ZF);
y = (S) (C) fetchb ();
if (trace)
printf ("<%d> ", !((sf ^ of) | zf));
if (!((sf ^ of) | zf))
*ip += (S) y;;
}
void
immb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
p = (void *) (y = decrm (r, w));
x = w ? fetchw () : fetchb ();
d = 0;
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (trace)
{
printf ("%s ", (C *[])
{
"ADD", "OR", "ADC", "SBB", "AND", "SUB", "XOR", "CMP"}
[r.reg]);
}
switch (r.reg)
{
case 0:
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 1:
z = x | y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 2:
x += (*fl & CF);
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 3:
d ? y += *fl & CF : (x += *fl & CF);
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 4:
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 5:
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 6:
z = x ^ y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 7:
p = null;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
};
}
void
immw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
p = (void *) (y = decrm (r, w));
x = w ? fetchw () : fetchb ();
d = 0;
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (trace)
{
printf ("%s ", (C *[])
{
"ADD", "OR", "ADC", "SBB", "AND", "SUB", "XOR", "CMP"}
[r.reg]);
}
switch (r.reg)
{
case 0:
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 1:
z = x | y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 2:
x += (*fl & CF);
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 3:
d ? y += *fl & CF : (x += *fl & CF);
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 4:
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 5:
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 6:
z = x ^ y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 7:
p = null;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
};
}
void
immb1 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
p = (void *) (y = decrm (r, w));
x = w ? fetchw () : fetchb ();
d = 0;
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (trace)
{
printf ("%s ", (C *[])
{
"ADD", "OR", "ADC", "SBB", "AND", "SUB", "XOR", "CMP"}
[r.reg]);
}
switch (r.reg)
{
case 0:
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 1:
z = x | y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 2:
x += (*fl & CF);
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 3:
d ? y += *fl & CF : (x += *fl & CF);
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 4:
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 5:
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 6:
z = x ^ y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 7:
p = null;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
};
}
void
immis ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
p = (void *) (y = decrm (r, w));
w = 0;
x = w ? fetchw () : fetchb ();
w = 1;
x = (S) (C) x;
d = 0;
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (trace)
{
printf ("%s ", (C *[])
{
"ADD", "OR", "ADC", "SBB", "AND", "SUB", "XOR", "CMP"}
[r.reg]);
}
switch (r.reg)
{
case 0:
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 1:
z = x | y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 2:
x += (*fl & CF);
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 3:
d ? y += *fl & CF : (x += *fl & CF);
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 4:
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 5:
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 6:
z = x ^ y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
case 7:
p = null;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
break;
};
}
void
testb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);;
}
void
testw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);;
}
void
xchgb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
f = x;
z = y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (w)
{
*(US *) f = y;
*(US *) z = x;
}
else
{
*(UC *) f = y;
*(UC *) z = x;
};
}
void
xchgw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
f = x;
z = y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (w)
{
*(US *) f = y;
*(US *) z = x;
}
else
{
*(UC *) f = y;
*(UC *) z = x;
};
}
void
movbf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = d ? y : x;
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
movwf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = d ? y : x;
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
movbt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = d ? y : x;
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
movwt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
z = d ? y : x;
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
movsegf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
};
}
void
lea ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
z = ((UC *) y) - mem;
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);;
}
void
movsegt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
};
}
void
poprm ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
*((US *) p) = get_ (mem + (*sp += 2) - 2, 1);
}
void
nopH ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
xchgac ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) ax;
y = (U) (cx);
w = 1;
f = x;
z = y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (w)
{
*(US *) f = y;
*(US *) z = x;
}
else
{
*(UC *) f = y;
*(UC *) z = x;
};
}
void
xchgad ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) ax;
y = (U) (dx);
w = 1;
f = x;
z = y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (w)
{
*(US *) f = y;
*(US *) z = x;
}
else
{
*(UC *) f = y;
*(UC *) z = x;
};
}
void
xchgab ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) ax;
y = (U) (bx);
w = 1;
f = x;
z = y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (w)
{
*(US *) f = y;
*(US *) z = x;
}
else
{
*(UC *) f = y;
*(UC *) z = x;
};
}
void
xchgasp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) ax;
y = (U) (sp);
w = 1;
f = x;
z = y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (w)
{
*(US *) f = y;
*(US *) z = x;
}
else
{
*(UC *) f = y;
*(UC *) z = x;
};
}
void
xchabp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) ax;
y = (U) (bp);
w = 1;
f = x;
z = y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (w)
{
*(US *) f = y;
*(US *) z = x;
}
else
{
*(UC *) f = y;
*(UC *) z = x;
};
}
void
xchgasi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) ax;
y = (U) (si);
w = 1;
f = x;
z = y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (w)
{
*(US *) f = y;
*(US *) z = x;
}
else
{
*(UC *) f = y;
*(UC *) z = x;
};
}
void
xchadi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) ax;
y = (U) (di);
w = 1;
f = x;
z = y;
x = get_ ((void *) x, w);
y = get_ ((void *) y, w);
if (trace)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
if (w)
{
*(US *) f = y;
*(US *) z = x;
}
else
{
*(UC *) f = y;
*(UC *) z = x;
};
}
void
cbw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*ax = (S) (C) * al;;
}
void
cwd ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
z = (I) (S) * ax;
*dx = z >> 16;;
}
void
farcall ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
wait ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
pushf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
put_ (mem + (*sp -= 2), *(fl), 1);
}
void
popf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(fl) = get_ (mem + (*sp += 2) - 2, 1);
}
void
sahf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
lahf ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
movalb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
if (d)
{
x = get_ (mem + fetchw (), w);
if (w)
*ax = x;
else
*al = x;
}
else
{
put_ (mem + fetchw (), w ? *ax : *al, w);
};
}
void
movaxw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
if (d)
{
x = get_ (mem + fetchw (), w);
if (w)
*ax = x;
else
*al = x;
}
else
{
put_ (mem + fetchw (), w ? *ax : *al, w);
};
}
void
movbal ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
if (d)
{
x = get_ (mem + fetchw (), w);
if (w)
*ax = x;
else
*al = x;
}
else
{
put_ (mem + fetchw (), w ? *ax : *al, w);
};
}
void
movwax ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
if (d)
{
x = get_ (mem + fetchw (), w);
if (w)
*ax = x;
else
*al = x;
}
else
{
put_ (mem + fetchw (), w ? *ax : *al, w);
};
}
void
movsb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
movsw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
cmpsb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
cmpsw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
testaib ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);;
} void
testaiw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (U) (p = w ? (UC *) ax : al);
x = get_ ((void *) x, w);
y = w ? fetchw () : fetchb ();
z = x & y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);;
} void
stosb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
stosw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
lodsb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
lodsw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
scasb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
scasw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
movali ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*al) = fetchb ();;
}
void
movcli ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*cl) = fetchb ();;
}
void
movdli ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*dl) = fetchb ();;
}
void
movbli ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*bl) = fetchb ();;
}
void
movahi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*ah) = fetchb ();;
}
void
movchi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*ch) = fetchb ();;
}
void
movdhi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*dh) = fetchb ();;
}
void
movbhi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*bh) = fetchb ();;
}
void
movaxi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*ax) = fetchw ();;
}
void
movcxi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*cx) = fetchw ();;
}
void
movdxi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*dx) = fetchw ();;
}
void
movbxi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*bx) = fetchw ();;
}
void
movspi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*sp) = fetchw ();;
}
void
movbpi ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*bp) = fetchw ();;
}
void
movsii ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*si) = fetchw ();;
}
void
movdii ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
(*di) = fetchw ();;
}
void
nopI ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopJ ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
reti ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(ip) = get_ (mem + (*sp += 2) - 2, 1);
if (fetchw ())
*sp += fetchw () * 2;;
}
void
retz ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(ip) = get_ (mem + (*sp += 2) - 2, 1);
if (0)
*sp += 0 * 2;;
}
void
les ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
lds ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
movimb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
if (w)
{
(*(US *) y) = fetchw ();
}
else
{
(*(UC *) y) = fetchb ();
};
}
void
movimw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
x = decreg (r.reg, w);
y = decrm (r, w);
if (trace > 1)
{
printf ("x:%d\n", x);
printf ("y:%d\n", y);
}
p = d ? (void *) x : (void *) y;
if (w)
{
(*(US *) y) = fetchw ();
}
else
{
(*(UC *) y) = fetchb ();
};
}
void
nopK ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopL ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
freti ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(cs) = get_ (mem + (*sp += 2) - 2, 1);
*(ip) = get_ (mem + (*sp += 2) - 2, 1);
if (fetchw ())
*sp += fetchw () * 2;;
}
void
fretz ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*(cs) = get_ (mem + (*sp += 2) - 2, 1);
*(ip) = get_ (mem + (*sp += 2) - 2, 1);
if (0)
*sp += 0 * 2;;
}
void
int3 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
inti ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
int0 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
iret ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
shiftb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
shiftw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
shiftbv ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
shiftwv ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
aam ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
aad ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopM ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
xlat ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
esc0 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
esc1 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
esc2 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
esc3 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
esc4 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
esc5 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
esc6 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
esc7 ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
loopnz ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
loopz ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
loop ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
jcxz ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
inb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
inw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
outb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
outw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
call ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
w = 1;
x = w ? fetchw () : (S) (C) fetchb ();
put_ (mem + (*sp -= 2), *(ip), 1);
(*ip) += (S) x;;
}
void
jmp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = fetchw ();
*ip += (S) x;;
}
void
farjmp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
sjmp ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
x = (S) (C) fetchb ();
*ip += (S) x;;
}
void
invb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
invw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
outvb ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
outvw ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
lock ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
nopN ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
rep ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
repz ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
hlt ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
halt = 1;
}
void
cmc ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*fl = (*fl & ~CF) | ((*fl & CF) ^ 1);;
}
void
grp1b ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
grp1w ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
clc ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*fl = *fl & ~CF;;
}
void
stc ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
*fl = *fl | CF;;
}
void
cli ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
sti ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
cld ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
std ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;;
}
void
grp2b ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
y = decrm (r, w);
if (trace)
printf ("%s ", (C *[])
{
"INC", "DEC", "CALL", "CALL", "JMP", "JMP", "PUSH"}
[r.reg]);
switch (r.reg)
{
case 0:
w = 1;
d = 1;
p = (V *) (S *) y;
x = (S) * (S *) y;
y = 1;
f = *fl & CF;
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
break;
case 1:
w = 1;
d = 1;
p = (V *) (S *) y;
x = (S) * (S *) y;
y = 1;
f = *fl & CF;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
break;
case 2:
x = w ? fetchw () : (S) (C) fetchb ();
put_ (mem + (*sp -= 2), *(ip), 1);
(*ip) += (S) x;;
break;
case 3:
x = w ? fetchw () : (S) (C) fetchb ();
put_ (mem + (*sp -= 2), *(ip), 1);
(*ip) += (S) x;;
break;
case 4:
*ip += (S) y;
break;
case 5:
x = fetchw ();
*ip += (S) x;;
break;
case 6:
put_ (mem + (*sp -= 2), *((S *) y), 1);
break;
};
}
void
grp2w ()
{
if (trace)
{
printf ("%s:\n", __func__);
}
d = ! !(o & 2);
w = o & 1;
rm r = mrm (fetchb ());
y = decrm (r, w);
if (trace)
printf ("%s ", (C *[])
{
"INC", "DEC", "CALL", "CALL", "JMP", "JMP", "PUSH"}
[r.reg]);
switch (r.reg)
{
case 0:
w = 1;
d = 1;
p = (V *) (S *) y;
x = (S) * (S *) y;
y = 1;
f = *fl & CF;
z = x + y;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
break;
case 1:
w = 1;
d = 1;
p = (V *) (S *) y;
x = (S) * (S *) y;
y = 1;
f = *fl & CF;
z = d ? x - y : y - x;
*fl = 0;
*fl |=
((z & (w ? 0x8000 : 0x80)) ? SF : 0) | ((z & (w ? 0xffff : 0xff)) ==
0 ? ZF : 0);
*fl |=
((z & (w ? 0xffff0000 : 0xff00)) ? CF : 0) |
(((z ^ x) & (z ^ y) & (w ? 0x8000 : 0x80)) ? OF : 0) |
(((x ^ y ^ z) & 0x10) ? AF : 0);
if (trace)
printf (w ? "->%04x " : "->%02x ", z);
put_ (p, z, w);
*fl = (*fl & ~CF) | f;;
break;
case 2:
x = w ? fetchw () : (S) (C) fetchb ();
put_ (mem + (*sp -= 2), *(ip), 1);
(*ip) += (S) x;;
break;
case 3:
x = w ? fetchw () : (S) (C) fetchb ();
put_ (mem + (*sp -= 2), *(ip), 1);
(*ip) += (S) x;;
break;
case 4:
*ip += (S) y;
break;
case 5:
x = fetchw ();
*ip += (S) x;;
break;
case 6:
put_ (mem + (*sp -= 2), *((S *) y), 1);
break;
};
}
void (*tab[]) () =
{
addbf, addwf, addbt, addwt, addbi, addwi, pushes, popes, orbf, orwf, orbt,
orwt, orbi, orwi, pushcs, nop0, adcbf, adcwf, adcbt, adcwt, adcbi,
adcwi, pushss, popss, sbbbf, sbbwf, sbbbt, sbbwt, sbbbi, sbbwi, pushds,
popds, andbf, andwf, andbt, andwt, andbi, andwi, esseg, daa, subbf,
subwf, subbt, subwt, subbi, subwi, csseg, das, xorbf, xorwf, xorbt,
xorwt, xorbi, xorwi, ssseg, aaa, cmpbf, cmpwf, cmpbt, cmpwt, cmpbi,
cmpwi, dsseg, aas, incax, inccx, incdx, incbx, incsp, incbp, incsi,
incdi, decax, deccx, decdx, decbx, decsp, decbp, decsi, decdi, pushax,
pushcx, pushdx, pushbx, pushsp, pushbp, pushsi, pushdi, popax, popcx,
popdx, popbx, popsp, popbp, popsi, popdi, nop1, nop2, nop3, nop4, nop5,
nop6, nop7, nop8, nop9, nopA, nopB, nopC, nopD, nopE, nopF, nopG, jo,
jno, jb, jnb, jz, jnz, jbe, jnbe, js, jns, jp, jnp, jl, jnl_, jle, jnle,
immb, immw, immb1, immis, testb, testw, xchgb, xchgw, movbf, movwf,
movbt, movwt, movsegf, lea, movsegt, poprm, nopH, xchgac, xchgad,
xchgab, xchgasp, xchabp, xchgasi, xchadi, cbw, cwd, farcall, wait,
pushf, popf, sahf, lahf, movalb, movaxw, movbal, movwax, movsb, movsw,
cmpsb, cmpsw, testaib, testaiw, stosb, stosw, lodsb, lodsw, scasb,
scasw, movali, movcli, movdli, movbli, movahi, movchi, movdhi, movbhi,
movaxi, movcxi, movdxi, movbxi, movspi, movbpi, movsii, movdii, nopI,
nopJ, reti, retz, les, lds, movimb, movimw, nopK, nopL, freti, fretz,
int3, inti, int0, iret, shiftb, shiftw, shiftbv, shiftwv, aam, aad,
nopM, xlat, esc0, esc1, esc2, esc3, esc4, esc5, esc6, esc7, loopnz,
loopz, loop, jcxz, inb, inw, outb, outw, call, jmp, farjmp, sjmp, invb,
invw, outvb, outvw, lock, nopN, rep, repz, hlt, cmc, grp1b, grp1w, clc,
stc, cli, sti, cld, std, grp2b, grp2w,};
V
clean (C * s)
{
I i;
for (i = 0; i < 80; i++)
if (!isprint (s[i]))
s[i] = ' ';
}
V
video ()
{
I i;
C buf[81] = "";
for (i = 0; i < 28; i++)
memcpy (buf, mem + 0x8000 + i * 80, 80),
clean (buf), printf ("\n%s", buf);
printf ("\n");
}
static I ct;
V
run ()
{
while (!halt)
{
if (trace)
dump ();
if (!ct--)
{
ct = 10;
video ();
}
tab[o = fetchb ()]();
}
}
V
dbg ()
{
while (!halt)
{
C c;
if (!ct--)
{
ct = 10;
video ();
}
if (trace)
dump ();
fgetc (stdin);
tab[o = fetchb ()]();
}
}
I
load (C * f)
{
struct stat s;
FILE *fp;
return (fp = fopen (f, "rb"))
&& fstat (fileno (fp), &s) || fread (mem, s.st_size, 1, fp);
}
I
main (I c, C ** v)
{
init ();
if (c > 1)
{
load (v[1]);
}
*sp = 0x100;
if (debug)
dbg ();
else
run ();
video ();
return 0;
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment