mame/src/emu/cpu/tms7000/tms70op.c
2008-11-24 02:40:16 +00:00

3900 lines
38 KiB
C

/*****************************************************************************
*
* tms70op.c (Op code functions)
* Portable TMS7000 emulator (Texas Instruments 7000)
*
* Copyright tim lindner, all rights reserved.
*
* - This source code is released as freeware for non-commercial purposes.
* - You are free to use and redistribute this code in modified or
* unmodified form, provided you list me in the credits.
* - If you modify this source code, you must add a notice to each modified
* source file that it has been changed. If you're a nice person, you
* will clearly mark each change too. :)
* - If you wish to use this for commercial purposes, please contact me at
* tlindner@macmess.org
* - This entire notice must remain in the source code.
*
*****************************************************************************/
//SJE: Changed all references to ICount to icount (to match MAME requirements)
#include "cpuintrf.h"
static void illegal( void )
{
/* This is a guess */
tms7000_icount -= 4;
}
static void adc_b2a( void )
{
UINT16 t;
t = RDA + RDB + GET_C;
WRA(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void adc_r2a( void )
{
UINT16 t;
UINT8 v;
IMMBYTE(v);
t = RM(v) + RDA + GET_C;
WRA(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void adc_r2b( void )
{
UINT16 t;
UINT8 v;
IMMBYTE(v);
t = RM(v) + RDB + GET_C;
WRB(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void adc_r2r( void )
{
UINT16 t;
UINT8 i,j;
IMMBYTE(i);
IMMBYTE(j);
t = RM(i)+RM(j) + GET_C;
WM(j,t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void adc_i2a( void )
{
UINT16 t;
UINT8 v;
IMMBYTE(v);
t = v + RDA + GET_C;
WRA(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void adc_i2b( void )
{
UINT16 t;
UINT8 v;
IMMBYTE(v);
t = v + RDB + GET_C;
WRB(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void adc_i2r( void )
{
UINT16 t;
UINT8 i,j;
IMMBYTE(i);
IMMBYTE(j);
t = i+RM(j) + GET_C;
WM(j,t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void add_b2a( void )
{
UINT16 t;
t = RDA + RDB;
WRA(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void add_r2a( void )
{
UINT16 t;
UINT8 v;
IMMBYTE(v);
t = RM(v) + RDA;
WRA(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void add_r2b( void )
{
UINT16 t;
UINT8 v;
IMMBYTE(v);
t = RM(v) + RDB;
WRB(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void add_r2r( void )
{
UINT16 t;
UINT8 i,j;
IMMBYTE(i);
IMMBYTE(j);
t = RM(i)+RM(j);
WM(j,t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void add_i2a( void )
{
UINT16 t;
UINT8 v;
IMMBYTE(v);
t = v + RDA;
WRA(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void add_i2b( void )
{
UINT16 t;
UINT8 v;
IMMBYTE(v);
t = v + RDB;
WRB(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void add_i2r( void )
{
UINT16 t;
UINT8 i,j;
IMMBYTE(i);
IMMBYTE(j);
t = i+RM(j);
WM(j,t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void and_b2a( void )
{
UINT8 t;
t = RDA & RDB;
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void and_r2a( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RM(v) & RDA;
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void and_r2b( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RM(v) & RDB;
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void and_r2r( void )
{
UINT8 t;
UINT8 i,j;
IMMBYTE(i);
IMMBYTE(j);
t = RM(i) & RM(j);
WM(j,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void and_i2a( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = v & RDA;
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void and_i2b( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = v & RDB;
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void and_i2r( void )
{
UINT8 t;
UINT8 i,j;
IMMBYTE(i);
IMMBYTE(j);
t = i & RM(j);
WM(j,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void andp_a2p( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RDA & RM( 0x0100 + v);
WM( 0x0100+v, t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void andp_b2p( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RDB & RM( 0x0100 + v);
WM( 0x0100+v, t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void movp_i2p( void )
{
UINT8 i,v;
IMMBYTE(i);
IMMBYTE(v);
WM( 0x0100+v, i);
CLR_NZC;
SET_N8(i);
SET_Z8(i);
tms7000_icount -= 11;
}
static void andp_i2p( void )
{
UINT8 t;
UINT8 i,v;
IMMBYTE(i);
IMMBYTE(v);
t = i & RM( 0x0100 + v);
WM( 0x0100+v, t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 11;
}
static void br_dir( void )
{
PAIR p;
IMMWORD( p );
pPC = p.d;
tms7000_icount -= 10;
}
static void br_ind( void )
{
UINT8 v;
IMMBYTE( v );
PC.w.l = RRF16(v);
tms7000_icount -= 9;
}
static void br_inx( void )
{
PAIR p;
IMMWORD( p );
pPC = p.w.l + RDB;
tms7000_icount -= 12;
}
static void btjo_b2a( void )
{
UINT8 t;
t = RDB & RDA;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE( j );
pPC += j;
tms7000_icount -= 9;
}
else
{
pPC++;
tms7000_icount -= 7;
}
}
static void btjo_r2a( void )
{
UINT8 t,r;
IMMBYTE( r );
t = RM( r ) & RDA;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE( j );
pPC += j;
tms7000_icount -= 9;
}
else
{
pPC++;
tms7000_icount -= 7;
}
}
static void btjo_r2b( void )
{
UINT8 t,r;
IMMBYTE(r);
t = RM(r) & RDB;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 12;
}
else
{
pPC++;
tms7000_icount -= 10;
}
}
static void btjo_r2r( void )
{
UINT8 t,r,s;
IMMBYTE(r);
IMMBYTE(s);
t = RM(r) & RM(s);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 14;
}
else
{
pPC++;
tms7000_icount -= 12;
}
}
static void btjo_i2a( void )
{
UINT8 t,r;
IMMBYTE(r);
t = r & RDA;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 11;
}
else
{
pPC++;
tms7000_icount -= 9;
}
}
static void btjo_i2b( void )
{
UINT8 t,i;
IMMBYTE(i);
t = i & RDB;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 11;
}
else
{
pPC++;
tms7000_icount -= 9;
}
}
static void btjo_i2r( void )
{
UINT8 t,i,r;
IMMBYTE(i);
IMMBYTE(r);
t = i & RM(r);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 13;
}
else
{
pPC++;
tms7000_icount -= 11;
}
}
static void btjop_ap( void )
{
UINT8 t,p;
IMMBYTE(p);
t = RM(0x100+p) & RDA;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 13;
}
else
{
pPC++;
tms7000_icount -= 11;
}
}
static void btjop_bp( void )
{
UINT8 t,p;
IMMBYTE(p);
t = RM(0x100+p) & RDB;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 12;
}
else
{
pPC++;
tms7000_icount -= 10;
}
}
static void btjop_ip( void )
{
UINT8 t,p,i;
IMMBYTE(i);
IMMBYTE(p);
t = RM(0x100+p) & i;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 14;
}
else
{
pPC++;
tms7000_icount -= 12;
}
}
static void btjz_b2a( void )
{
UINT8 t;
t = RDB & ~RDA;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE( j );
pPC += j;
tms7000_icount -= 9;
}
else
{
pPC++;
tms7000_icount -= 7;
}
}
static void btjz_r2a( void )
{
UINT8 t,r;
IMMBYTE( r );
t = RM( r ) & ~RDA;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE( j );
pPC += j;
tms7000_icount -= 9;
}
else
{
pPC++;
tms7000_icount -= 7;
}
}
static void btjz_r2b( void )
{
UINT8 t,r;
IMMBYTE(r);
t = RM(r) & ~RDB;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 12;
}
else
{
pPC++;
tms7000_icount -= 10;
}
}
static void btjz_r2r( void )
{
UINT8 t,r,s;
IMMBYTE(r);
IMMBYTE(s);
t = RM(r) & ~RM(s);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 14;
}
else
{
pPC++;
tms7000_icount -= 12;
}
}
static void btjz_i2a( void )
{
UINT8 t,r;
IMMBYTE(r);
t = r & ~RDA;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 11;
}
else
{
pPC++;
tms7000_icount -= 9;
}
}
static void btjz_i2b( void )
{
UINT8 t,i;
IMMBYTE(i);
t = i & ~RDB;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 11;
}
else
{
pPC++;
tms7000_icount -= 9;
}
}
static void btjz_i2r( void )
{
UINT8 t,i,r;
IMMBYTE(i);
IMMBYTE(r);
t = i & ~RM(r);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 13;
}
else
{
pPC++;
tms7000_icount -= 11;
}
}
static void btjzp_ap( void )
{
UINT8 t,p;
IMMBYTE(p);
t = RDA & ~RM(0x100+p);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 13;
}
else
{
pPC++;
tms7000_icount -= 11;
}
}
static void btjzp_bp( void )
{
UINT8 t,p;
IMMBYTE(p);
t = RDB & ~RM(0x100+p);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 12;
}
else
{
pPC++;
tms7000_icount -= 10;
}
}
static void btjzp_ip( void )
{
UINT8 t,p,i;
IMMBYTE(i);
IMMBYTE(p);
t = i & ~RM(0x100+p);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if(t != 0)
{
INT8 j;
SIMMBYTE(j);
pPC += j;
tms7000_icount -= 14;
}
else
{
pPC++;
tms7000_icount -= 12;
}
}
static void call_dir( void )
{
PAIR tPC;
IMMWORD( tPC );
PUSHWORD( PC );
pPC = tPC.d;
tms7000_icount -= 14;
}
static void call_ind( void )
{
UINT8 v;
IMMBYTE( v );
PUSHWORD( PC );
PC.w.l = RRF16(v);
tms7000_icount -= 13;
}
static void call_inx( void )
{
PAIR tPC;
IMMWORD( tPC );
PUSHWORD( PC );
pPC = tPC.w.l + RDB;
tms7000_icount -= 16;
}
static void clr_a( void )
{
WRA(0);
tms7000_icount -= 5;
}
static void clr_b( void )
{
WRB(0);
tms7000_icount -= 5;
}
static void clr_r( void )
{
UINT8 r;
IMMBYTE(r);
WM(r,0);
tms7000_icount -= 7;
}
static void clrc( void )
{
UINT8 a;
a = RDA;
CLR_NZC;
SET_N8(a);
SET_Z8(a);
tms7000_icount -= 6;
}
static void cmp_ba( void )
{
UINT16 t;
t = RDA - RDB;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t==0 )
SETC;
else
SET_C8( ~t );
tms7000_icount -= 5;
}
static void cmp_ra( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = RDA - RM(r);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t==0 )
SETC;
else
SET_C8( ~t );
tms7000_icount -= 8;
}
static void cmp_rb( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = RDB - RM(r);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t==0 )
SETC;
else
SET_C8( ~t );
tms7000_icount -= 8;
}
static void cmp_rr( void )
{
UINT16 t;
UINT8 r,s;
IMMBYTE(r);
IMMBYTE(s);
t = RM(s) - RM(r);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t==0 )
SETC;
else
SET_C8( ~t );
tms7000_icount -= 10;
}
static void cmp_ia( void )
{
UINT16 t;
UINT8 i;
IMMBYTE(i);
t = RDA - i;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t==0 )
SETC;
else
SET_C8( ~t );
tms7000_icount -= 7;
}
static void cmp_ib( void )
{
UINT16 t;
UINT8 i;
IMMBYTE(i);
t = RDB - i;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t==0 )
SETC;
else
SET_C8( ~t );
tms7000_icount -= 7;
}
static void cmp_ir( void )
{
UINT16 t;
UINT8 i,r;
IMMBYTE(i);
IMMBYTE(r);
t = RM(r) - i;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t==0 )
SETC;
else
SET_C8( ~t );
tms7000_icount -= 9;
}
static void cmpa_dir( void )
{
UINT16 t;
PAIR i;
IMMWORD( i );
t = RDA - RM(i.w.l);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t==0 )
SETC;
else
SET_C8( ~t );
tms7000_icount -= 12;
}
static void cmpa_ind( void )
{
UINT16 t;
PAIR p;
INT8 i;
IMMBYTE(i);
p.w.l = RRF16(i);
t = RDA - RM(p.w.l);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t==0 )
SETC;
else
SET_C8( ~t );
tms7000_icount -= 11;
}
static void cmpa_inx( void )
{
UINT16 t;
PAIR i;
IMMWORD( i );
t = RDA - RM(i.w.l + RDB);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t==0 )
SETC;
else
SET_C8( ~t );
tms7000_icount -= 14;
}
static void dac_b2a( void )
{
UINT16 t;
t = bcd_add( RDA, RDB );
if (pSR & SR_C)
t = bcd_add( t, 1 );
WRA(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void dac_r2a( void )
{
UINT8 r;
UINT16 t;
IMMBYTE(r);
t = bcd_add( RDA, RM(r) );
if (pSR & SR_C)
t = bcd_add( t, 1 );
WRA(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void dac_r2b( void )
{
UINT8 r;
UINT16 t;
IMMBYTE(r);
t = bcd_add( RDB, RM(r) );
if (pSR & SR_C)
t = bcd_add( t, 1 );
WRB(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void dac_r2r( void )
{
UINT8 r,s;
UINT16 t;
IMMBYTE(s);
IMMBYTE(r);
t = bcd_add( RM(s), RM(r) );
if (pSR & SR_C)
t = bcd_add( t, 1 );
WM(r,t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 12;
}
static void dac_i2a( void )
{
UINT8 i;
UINT16 t;
IMMBYTE(i);
t = bcd_add( i, RDA );
if (pSR & SR_C)
t = bcd_add( t, 1 );
WRA(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void dac_i2b( void )
{
UINT8 i;
UINT16 t;
IMMBYTE(i);
t = bcd_add( i, RDB );
if (pSR & SR_C)
t = bcd_add( t, 1 );
WRB(t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void dac_i2r( void )
{
UINT8 i,r;
UINT16 t;
IMMBYTE(i);
IMMBYTE(r);
t = bcd_add( i, RM(r) );
if (pSR & SR_C)
t = bcd_add( t, 1 );
WM(r,t);
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 11;
}
static void dec_a( void )
{
UINT16 t;
t = RDA - 1;
WRA( t );
CLR_NZC;
SET_N8(t);
SET_Z8(t);
SET_C8(~t);
tms7000_icount -= 5;
}
static void dec_b( void )
{
UINT16 t;
t = RDB - 1;
WRB( t );
CLR_NZC;
SET_N8(t);
SET_Z8(t);
SET_C8(~t);
tms7000_icount -= 5;
}
static void dec_r( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = RM(r) - 1;
WM( r, t );
CLR_NZC;
SET_N8(t);
SET_Z8(t);
SET_C8(~t);
tms7000_icount -= 7;
}
static void decd_a( void )
{
PAIR t;
t.w.h = 0;
t.w.l = RRF16(0);
t.d -= 1;
WRF16(0,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
SET_C16(~(t.d));
tms7000_icount -= 9;
}
static void decd_b( void )
{
PAIR t;
t.w.h = 0;
t.w.l = RRF16(1);
t.d -= 1;
WRF16(1,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
SET_C16(~(t.d));
tms7000_icount -= 9;
}
static void decd_r( void )
{
UINT8 r;
PAIR t;
IMMBYTE(r);
t.w.h = 0;
t.w.l = RRF16(r);
t.d -= 1;
WRF16(r,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
SET_C16(~(t.d));
tms7000_icount -= 11;
}
static void dint( void )
{
CLR_NZCI;
tms7000_icount -= 5;
}
static void djnz_a( void )
{
UINT16 t;
t = RDA - 1;
WRA( t );
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t != 0 )
{
INT8 s;
SIMMBYTE(s);
pPC += s;
tms7000_icount -= 7;
}
else
{
pPC++;
tms7000_icount -= 2;
}
}
static void djnz_b( void )
{
UINT16 t;
t = RDB - 1;
WRB( t );
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t != 0 )
{
INT8 s;
SIMMBYTE(s);
pPC += s;
tms7000_icount -= 7;
}
else
{
pPC++;
tms7000_icount -= 2;
}
}
static void djnz_r( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = RM(r) - 1;
WM(r,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
if( t != 0 )
{
INT8 s;
SIMMBYTE(s);
pPC += s;
tms7000_icount -= 9;
}
else
{
pPC++;
tms7000_icount -= 3;
}
}
static void dsb_b2a( void )
{
UINT16 t;
t = bcd_sub( RDA, RDB );
if( !(pSR & SR_C) )
t = bcd_sub( t, 1 );
WRA(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void dsb_r2a( void )
{
UINT8 r;
UINT16 t;
IMMBYTE(r);
t = bcd_sub( RDA, RM(r) );
if( !(pSR & SR_C) )
t = bcd_sub( t, 1 );
WRA(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void dsb_r2b( void )
{
UINT8 r;
UINT16 t;
IMMBYTE(r);
t = bcd_sub( RDB, RM(r) );
if( !(pSR & SR_C) )
t = bcd_sub( t, 1 );
WRB(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void dsb_r2r( void )
{
UINT8 r,s;
UINT16 t;
IMMBYTE(s);
IMMBYTE(r);
t = bcd_sub( RM(s), RM(r) );
if( !(pSR & SR_C) )
t = bcd_sub( t, 1 );
WM(r,t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 12;
}
static void dsb_i2a( void )
{
UINT8 i;
UINT16 t;
IMMBYTE(i);
t = bcd_sub( RDA, i );
if( !(pSR & SR_C) )
t = bcd_sub( t, 1 );
WRA(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void dsb_i2b( void )
{
UINT8 i;
UINT16 t;
IMMBYTE(i);
t = bcd_sub( RDB, i );
if( !(pSR & SR_C) )
t = bcd_sub( t, 1 );
WRB(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void dsb_i2r( void )
{
UINT8 r,i;
UINT16 t;
IMMBYTE(i);
IMMBYTE(r);
t = bcd_sub( RM(r), i );
if( !(pSR & SR_C) )
t = bcd_sub( t, 1 );
WM(r,t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 11;
}
static void eint( void )
{
pSR |= (SR_N|SR_Z|SR_C|SR_I);
tms7000_icount -= 5;
tms7000_check_IRQ_lines();
}
static void idle( void )
{
tms7000.idle_state = 1;
tms7000_icount -= 6;
}
static void inc_a( void )
{
UINT16 t;
t = RDA + 1;
WRA( t );
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void inc_b( void )
{
UINT16 t;
t = RDB + 1;
WRB( t );
CLR_NZC;
SET_C8(t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void inc_r( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = RM(r) + 1;
WM( r, t );
CLR_NZC;
SET_N8(t);
SET_Z8(t);
SET_C8(t);
tms7000_icount -= 7;
}
static void inv_a( void )
{
UINT16 t;
t = ~(RDA);
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void inv_b( void )
{
UINT16 t;
t = ~(RDA);
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void inv_r( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = ~(RM(r));
WM( r, t );
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void jc( void )
{
if( pSR & SR_C )
{
INT8 s;
SIMMBYTE( s );
pPC += s;
tms7000_icount -= 7;
}
else
{
pPC++;
tms7000_icount -= 5;
}
}
static void jeq( void )
{
if( pSR & SR_Z )
{
INT8 s;
SIMMBYTE( s );
pPC += s;
tms7000_icount -= 7;
}
else
{
pPC++;
tms7000_icount -= 5;
}
}
static void jl( void )
{
if( pSR & SR_C )
{
pPC++;
tms7000_icount -= 5;
}
else
{
INT8 s;
SIMMBYTE( s );
pPC += s;
tms7000_icount -= 7;
}
}
static void jmp( void )
{
INT8 s;
SIMMBYTE( s );
pPC += s;
tms7000_icount -= 7;
}
static void j_jn( void )
{
if( pSR & SR_N )
{
INT8 s;
SIMMBYTE( s );
pPC += s;
tms7000_icount -= 7;
}
else
{
pPC++;
tms7000_icount -= 5;
}
}
static void jne( void )
{
if( pSR & SR_Z )
{
pPC++;
tms7000_icount -= 5;
}
else
{
INT8 s;
SIMMBYTE( s );
pPC += s;
tms7000_icount -= 7;
}
}
static void jp( void )
{
if( pSR & (SR_Z|SR_N) )
{
pPC++;
tms7000_icount -= 5;
}
else
{
INT8 s;
SIMMBYTE( s );
pPC += s;
tms7000_icount -= 7;
}
}
static void jpz( void )
{
if ((pSR & SR_N) == 0 && (pSR & SR_Z) != 0)
{
INT8 s;
SIMMBYTE( s );
pPC += s;
tms7000_icount -= 7;
}
else
{
pPC++;
tms7000_icount -= 5;
}
}
static void lda_dir( void )
{
UINT16 t;
PAIR i;
IMMWORD( i );
t = RM(i.w.l);
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 11;
}
static void lda_ind( void )
{
UINT16 t;
PAIR p;
INT8 i;
IMMBYTE(i);
p.w.l=RRF16(i);
t = RM(p.w.l);
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void lda_inx( void )
{
UINT16 t;
PAIR i;
IMMWORD( i );
t = RM(i.w.l + RDB);
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 13;
}
static void ldsp( void )
{
pSP = RDB;
tms7000_icount -= 5;
}
static void mov_a2b( void )
{
UINT16 t;
t = RDA;
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 6;
}
static void mov_b2a( void )
{
UINT16 t;
t = RDB;
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void mov_a2r( void )
{
UINT8 r;
UINT16 t;
IMMBYTE(r);
t = RDA;
WM(r,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void mov_b2r( void )
{
UINT8 r;
UINT16 t;
IMMBYTE(r);
t = RDB;
WM(r,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void mov_r2a( void )
{
UINT8 r;
UINT16 t;
IMMBYTE(r);
t = RM(r);
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void mov_r2b( void )
{
UINT8 r;
UINT16 t;
IMMBYTE(r);
t = RM(r);
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void mov_r2r( void )
{
UINT8 r,s;
UINT16 t;
IMMBYTE(r);
IMMBYTE(s);
t = RM(r);
WM(s,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void mov_i2a( void )
{
UINT16 t;
IMMBYTE(t);
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void mov_i2b( void )
{
UINT16 t;
IMMBYTE(t);
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void mov_i2r( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(t);
IMMBYTE(r);
WM(r,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void movd_imm( void )
{
PAIR t;
UINT8 r;
IMMWORD(t);
IMMBYTE(r);
WRF16(r,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
tms7000_icount -= 15;
}
static void movd_r( void )
{
PAIR t;
UINT8 r,s;
IMMBYTE(r);
IMMBYTE(s);
t.w.l = RRF16(r);
WRF16(s,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
tms7000_icount -= 14;
}
static void movd_inx( void )
{
PAIR t;
UINT8 r;
IMMWORD(t);
t.w.l += RDB;
IMMBYTE(r);
WRF16(r,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
tms7000_icount -= 17;
}
static void movp_a2p( void )
{
UINT8 p;
UINT16 t;
IMMBYTE(p);
t=RDA;
WM( 0x0100+p,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void movp_b2p( void )
{
UINT8 p;
UINT16 t;
IMMBYTE(p);
t=RDB;
WM( 0x0100+p,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
#if 0
/* this appears to be unused */
static void movp_r2p( void )
{
UINT8 p,r;
UINT16 t;
IMMBYTE(r);
IMMBYTE(p);
t=RM(r);
WM( 0x0100+p,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 11;
}
#endif
static void movp_p2a( void )
{
UINT8 p;
UINT16 t;
IMMBYTE(p);
t=RM(0x0100+p);
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void movp_p2b( void )
{
UINT8 p;
UINT16 t;
IMMBYTE(p);
t=RM(0x0100+p);
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void mpy_ba( void )
{
PAIR t;
t.w.l = RDA * RDB;
WRF16(0x01,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
tms7000_icount -= 43;
}
static void mpy_ra( void )
{
PAIR t;
UINT8 r;
IMMBYTE(r);
t.w.l = RDA * RM(r);
WRF16(0x01,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
tms7000_icount -= 46;
}
static void mpy_rb( void )
{
PAIR t;
UINT8 r;
IMMBYTE(r);
t.w.l = RDB * RM(r);
WRF16(0x01,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
tms7000_icount -= 46;
}
static void mpy_rr( void )
{
PAIR t;
UINT8 r,s;
IMMBYTE(r);
IMMBYTE(s);
t.w.l = RM(s) * RM(r);
WRF16(0x01,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
tms7000_icount -= 48;
}
static void mpy_ia( void )
{
PAIR t;
UINT8 i;
IMMBYTE(i);
t.w.l = RDA * i;
WRF16(0x01,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
tms7000_icount -= 45;
}
static void mpy_ib( void )
{
PAIR t;
UINT8 i;
IMMBYTE(i);
t.w.l = RDB * i;
WRF16(0x01,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
tms7000_icount -= 45;
}
static void mpy_ir( void )
{
PAIR t;
UINT8 i,r;
IMMBYTE(i);
IMMBYTE(r);
t.w.l = RM(r) * i;
WRF16(0x01,t);
CLR_NZC;
SET_N8(t.b.h);
SET_Z8(t.b.h);
tms7000_icount -= 47;
}
static void nop( void )
{
tms7000_icount -= 4;
}
static void or_b2a( void )
{
UINT8 t;
t = RDA | RDB;
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void or_r2a( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RM(v) | RDA;
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void or_r2b( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RM(v) | RDB;
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void or_r2r( void )
{
UINT8 t;
UINT8 i,j;
IMMBYTE(i);
IMMBYTE(j);
t = RM(i) | RM(j);
WM(j,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void or_i2a( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = v | RDA;
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void or_i2b( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = v | RDB;
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void or_i2r( void )
{
UINT8 t;
UINT8 i,j;
IMMBYTE(i);
IMMBYTE(j);
t = i | RM(j);
WM(j,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void orp_a2p( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RDA | RM( 0x0100 + v);
WM( 0x0100+v, t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void orp_b2p( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RDB | RM( 0x0100 + v);
WM( 0x0100+v, t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void orp_i2p( void )
{
UINT8 t;
UINT8 i,v;
IMMBYTE(i);
IMMBYTE(v);
t = i | RM( 0x0100 + v);
WM( 0x0100+v, t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 11;
}
static void pop_a( void )
{
UINT16 t;
PULLBYTE(t);
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 6;
}
static void pop_b( void )
{
UINT16 t;
PULLBYTE(t);
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 6;
}
static void pop_r( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
PULLBYTE(t);
WM(r,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void pop_st( void )
{
UINT16 t;
PULLBYTE(t);
pSR = t;
tms7000_icount -= 6;
}
static void push_a( void )
{
UINT16 t;
t = RDA;
PUSHBYTE(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 6;
}
static void push_b( void )
{
UINT16 t;
t = RDB;
PUSHBYTE(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 6;
}
static void push_r( void )
{
UINT16 t;
INT8 r;
IMMBYTE(r);
t = RM(r);
PUSHBYTE(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void push_st( void )
{
UINT16 t;
t = pSR;
PUSHBYTE(t);
tms7000_icount -= 6;
}
static void reti( void )
{
PULLWORD( PC );
PULLBYTE( pSR );
tms7000_icount -= 9;
tms7000_check_IRQ_lines();
}
static void rets( void )
{
PULLWORD( PC );
tms7000_icount -= 7;
}
static void rl_a( void )
{
UINT16 t;
t = RDA << 1;
CLR_NZC;
SET_C8(t);
if( pSR & SR_C )
t |= 0x01;
SET_N8(t);
SET_Z8(t);
WRA(t);
tms7000_icount -= 5;
}
static void rl_b( void )
{
UINT16 t;
t = RDB << 1;
CLR_NZC;
SET_C8(t);
if( pSR & SR_C )
t |= 0x01;
SET_N8(t);
SET_Z8(t);
WRB(t);
tms7000_icount -= 5;
}
static void rl_r( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = RM(r) << 1;
CLR_NZC;
SET_C8(t);
if( pSR & SR_C )
t |= 0x01;
SET_N8(t);
SET_Z8(t);
WM(r,t);
tms7000_icount -= 7;
}
static void rlc_a( void )
{
UINT16 t;
int old_carry;
old_carry = (pSR & SR_C);
t = RDA << 1;
CLR_NZC;
SET_C8(t);
if( old_carry )
t |= 0x01;
SET_N8(t);
SET_Z8(t);
WRA(t);
tms7000_icount -= 5;
}
static void rlc_b( void )
{
UINT16 t;
int old_carry;
old_carry = (pSR & SR_C);
t = RDB << 1;
CLR_NZC;
SET_C8(t);
if( old_carry )
t |= 0x01;
SET_N8(t);
SET_Z8(t);
WRB(t);
tms7000_icount -= 5;
}
static void rlc_r( void )
{
UINT16 t;
UINT8 r;
int old_carry;
old_carry = (pSR & SR_C);
IMMBYTE(r);
t = RM(r) << 1;
CLR_NZC;
SET_C8(t);
if( old_carry )
t |= 0x01;
SET_N8(t);
SET_Z8(t);
WM(r,t);
tms7000_icount -= 7;
}
static void rr_a( void )
{
UINT16 t;
int old_bit0;
t = RDA;
old_bit0 = t & 0x0001;
t = t >> 1;
CLR_NZC;
if( old_bit0 )
{
SETC;
t |= 0x80;
}
SET_N8(t);
SET_Z8(t);
WRA(t);
tms7000_icount -= 5;
}
static void rr_b( void )
{
UINT16 t;
int old_bit0;
t = RDB;
old_bit0 = t & 0x0001;
t = t >> 1;
CLR_NZC;
if( old_bit0 )
{
SETC;
t |= 0x80;
}
SET_N8(t);
SET_Z8(t);
WRB(t);
tms7000_icount -= 5;
}
static void rr_r( void )
{
UINT16 t;
UINT8 r;
int old_bit0;
IMMBYTE(r);
t = RM(r);
old_bit0 = t & 0x0001;
t = t >> 1;
CLR_NZC;
if( old_bit0 )
{
SETC;
t |= 0x80;
}
SET_N8(t);
SET_Z8(t);
WM(r,t);
tms7000_icount -= 7;
}
static void rrc_a( void )
{
UINT16 t;
int old_bit0;
t = RDA;
old_bit0 = t & 0x0001;
/* Place carry bit in 9th position */
t |= ((pSR & SR_C) << 1);
t = t >> 1;
CLR_NZC;
if( old_bit0 )
SETC;
SET_N8(t);
SET_Z8(t);
WRA(t);
tms7000_icount -= 5;
}
static void rrc_b( void )
{
UINT16 t;
int old_bit0;
t = RDB;
old_bit0 = t & 0x0001;
/* Place carry bit in 9th position */
t |= ((pSR & SR_C) << 1);
t = t >> 1;
CLR_NZC;
if( old_bit0 )
SETC;
SET_N8(t);
SET_Z8(t);
WRB(t);
tms7000_icount -= 5;
}
static void rrc_r( void )
{
UINT16 t;
UINT8 r;
int old_bit0;
IMMBYTE(r);
t = RM(r);
old_bit0 = t & 0x0001;
/* Place carry bit in 9th position */
t |= ((pSR & SR_C) << 1);
t = t >> 1;
CLR_NZC;
if( old_bit0 )
SETC;
SET_N8(t);
SET_Z8(t);
WM(r,t);
tms7000_icount -= 7;
}
static void sbb_ba( void )
{
UINT16 t;
t = RDA - RDB - ((pSR & SR_C) ? 0 : 1);
WRA(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void sbb_ra( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = RDA - RM(r) - ((pSR & SR_C) ? 0 : 1);
WRA(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void sbb_rb( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = RDB - RM(r) - ((pSR & SR_C) ? 0 : 1);
WRB(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void sbb_rr( void )
{
UINT16 t;
UINT8 r,s;
IMMBYTE(s);
IMMBYTE(r);
t = RM(r) - RM(s) - ((pSR & SR_C) ? 0 : 1);
WM(r,t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void sbb_ia( void )
{
UINT16 t;
UINT8 i;
IMMBYTE(i);
t = RDA - i - ((pSR & SR_C) ? 0 : 1);
WRA(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void sbb_ib( void )
{
UINT16 t;
UINT8 i;
IMMBYTE(i);
t = RDB - i - ((pSR & SR_C) ? 0 : 1);
WRB(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void sbb_ir( void )
{
UINT16 t;
UINT8 r,i;
IMMBYTE(i);
IMMBYTE(r);
t = RM(r) - i - ((pSR & SR_C) ? 0 : 1);
WM(r,t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void setc( void )
{
CLR_NZC;
pSR |= (SR_C|SR_Z);
tms7000_icount -= 5;
}
static void sta_dir( void )
{
UINT16 t;
PAIR i;
t = RDA;
IMMWORD( i );
WM(i.w.l,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 11;
}
static void sta_ind( void )
{
UINT16 t;
PAIR p;
INT8 r;
IMMBYTE(r);
p.w.l = RRF16(r);
t = RDA;
WM(p.w.l,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void sta_inx( void )
{
UINT16 t;
PAIR i;
IMMWORD( i );
t = RDA;
WM(i.w.l+RDB,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 13;
}
static void stsp( void )
{
WRB(pSP);
tms7000_icount -= 6;
}
static void sub_ba( void )
{
UINT16 t;
t = RDA - RDB;
WRA(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void sub_ra( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = RDA - RM(r);
WRA(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void sub_rb( void )
{
UINT16 t;
UINT8 r;
IMMBYTE(r);
t = RDB - RM(r);
WRB(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void sub_rr( void )
{
UINT16 t;
UINT8 r,s;
IMMBYTE(s);
IMMBYTE(r);
t = RM(r) - RM(s);
WM(r,t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void sub_ia( void )
{
UINT16 t;
UINT8 i;
IMMBYTE(i);
t = RDA - i;
WRA(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void sub_ib( void )
{
UINT16 t;
UINT8 i;
IMMBYTE(i);
t = RDB - i;
WRB(t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void sub_ir( void )
{
UINT16 t;
UINT8 r,i;
IMMBYTE(i);
IMMBYTE(r);
t = RM(r) - i;
WM(r,t);
CLR_NZC;
SET_C8(~t);
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void trap_0( void )
{
PUSHWORD( PC );
pPC = RM16(0xfffe);
tms7000_icount -= 14;
}
static void trap_1( void )
{
PUSHWORD( PC );
pPC = RM16(0xfffc);
tms7000_icount -= 14;
}
static void trap_2( void )
{
PUSHWORD( PC );
pPC = RM16(0xfffa);
tms7000_icount -= 14;
}
static void trap_3( void )
{
PUSHWORD( PC );
pPC = RM16(0xfff8);
tms7000_icount -= 14;
}
static void trap_4( void )
{
PUSHWORD( PC );
pPC = RM16(0xfff6);
tms7000_icount -= 14;
}
static void trap_5( void )
{
PUSHWORD( PC );
pPC = RM16(0xfff4);
tms7000_icount -= 14;
}
static void trap_6( void )
{
PUSHWORD( PC );
pPC = RM16(0xfff2);
tms7000_icount -= 14;
}
static void trap_7( void )
{
PUSHWORD( PC );
pPC = RM16(0xfff0);
tms7000_icount -= 14;
}
static void trap_8( void )
{
PUSHWORD( PC );
pPC = RM16(0xffee);
tms7000_icount -= 14;
}
static void trap_9( void )
{
PUSHWORD( PC );
pPC = RM16(0xffec);
tms7000_icount -= 14;
}
static void trap_10( void )
{
PUSHWORD( PC );
pPC = RM16(0xffea);
tms7000_icount -= 14;
}
static void trap_11( void )
{
PUSHWORD( PC );
pPC = RM16(0xffe8);
tms7000_icount -= 14;
}
static void trap_12( void )
{
PUSHWORD( PC );
pPC = RM16(0xffe6);
tms7000_icount -= 14;
}
static void trap_13( void )
{
PUSHWORD( PC );
pPC = RM16(0xffe4);
tms7000_icount -= 14;
}
static void trap_14( void )
{
PUSHWORD( PC );
pPC = RM16(0xffe2);
tms7000_icount -= 14;
}
static void trap_15( void )
{
PUSHWORD( PC );
pPC = RM16(0xffe0);
tms7000_icount -= 14;
}
static void trap_16( void )
{
PUSHWORD( PC );
pPC = RM16(0xffde);
tms7000_icount -= 14;
}
static void trap_17( void )
{
PUSHWORD( PC );
pPC = RM16(0xffdc);
tms7000_icount -= 14;
}
static void trap_18( void )
{
PUSHWORD( PC );
pPC = RM16(0xffda);
tms7000_icount -= 14;
}
static void trap_19( void )
{
PUSHWORD( PC );
pPC = RM16(0xffd8);
tms7000_icount -= 14;
}
static void trap_20( void )
{
PUSHWORD( PC );
pPC = RM16(0xffd6);
tms7000_icount -= 14;
}
static void trap_21( void )
{
PUSHWORD( PC );
pPC = RM16(0xffd4);
tms7000_icount -= 14;
}
static void trap_22( void )
{
PUSHWORD( PC );
pPC = RM16(0xffd2);
tms7000_icount -= 14;
}
static void trap_23( void )
{
PUSHWORD( PC );
pPC = RM16(0xffd0);
tms7000_icount -= 14;
}
static void swap_a( void )
{
UINT8 a,b;
UINT16 t;
a = b = RDA;
a <<= 4;
b >>= 4;
t = a+b;
WRA(t);
CLR_NZC;
pSR|=((t&0x0001)<<7);
SET_N8(t);
SET_Z8(t);
tms7000_icount -=8;
}
static void swap_b( void )
{
UINT8 a,b;
UINT16 t;
a = b = RDB;
a <<= 4;
b >>= 4;
t = a+b;
WRB(t);
CLR_NZC;
pSR|=((t&0x0001)<<7);
SET_N8(t);
SET_Z8(t);
tms7000_icount -=8;
}
static void swap_r( void )
{
UINT8 a,b,r;
UINT16 t;
IMMBYTE(r);
a = b = RM(r);
a <<= 4;
b >>= 4;
t = a+b;
WM(r,t);
CLR_NZC;
pSR|=((t&0x0001)<<7);
SET_N8(t);
SET_Z8(t);
tms7000_icount -=8;
}
static void swap_r_exl( void )
{
UINT8 a,b,r;
UINT16 t;
IMMBYTE(r);
if (r == 0)
{ /* opcode D7 00 (LVDP) mostly equivalent to MOVP P46,A??? (timings must
be different, possibly the microcode polls the state of the VDP RDY
line prior to doing the transfer) */
t=RM(0x012e);
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9; /* ?????? */
}
else
{ /* stright swap Rn instruction */
a = b = RM(r);
a <<= 4;
b >>= 4;
t = a+b;
WM(r,t);
CLR_NZC;
pSR|=((t&0x0001)<<7);
SET_N8(t);
SET_Z8(t);
tms7000_icount -=8;
}
}
static void tstb( void )
{
UINT16 t;
t=RDB;
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 6;
}
static void xchb_a( void )
{
UINT16 t,u;
t = RDB;
u = RDA;
WRA(t);
WRB(u);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 6;
}
static void xchb_b( void )
{
UINT16 t;
/* UINT16 u; */
t = RDB;
/* u = RDB; */
/* WRB(t); */
/* WRB(u); */
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 6;
}
static void xchb_r( void )
{
UINT16 t,u;
UINT8 r;
IMMBYTE(r);
t = RDB;
u = RM(r);
WRA(t);
WRB(u);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void xor_b2a( void )
{
UINT8 t;
t = RDA ^ RDB;
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 5;
}
static void xor_r2a( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RM(v) ^ RDA;
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void xor_r2b( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RM(v) ^ RDB;
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 8;
}
static void xor_r2r( void )
{
UINT8 t;
UINT8 i,j;
IMMBYTE(i);
IMMBYTE(j);
t = RM(i) ^ RM(j);
WM(j,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void xor_i2a( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = v ^ RDA;
WRA(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void xor_i2b( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = v ^ RDB;
WRB(t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 7;
}
static void xor_i2r( void )
{
UINT8 t;
UINT8 i,j;
IMMBYTE(i);
IMMBYTE(j);
t = i ^ RM(j);
WM(j,t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void xorp_a2p( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RDA ^ RM( 0x0100 + v);
WM( 0x0100+v, t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 10;
}
static void xorp_b2p( void )
{
UINT8 t;
UINT8 v;
IMMBYTE(v);
t = RDB ^ RM( 0x0100 + v);
WM( 0x0100+v, t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 9;
}
static void xorp_i2p( void )
{
UINT8 t;
UINT8 i,v;
IMMBYTE(i);
IMMBYTE(v);
t = i ^ RM( 0x0100 + v);
WM( 0x0100+v, t);
CLR_NZC;
SET_N8(t);
SET_Z8(t);
tms7000_icount -= 11;
}