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|
/* z80_ddfd.c Z80 {DD,FD}xx opcodes
Copyright (c) 1999-2003 Philip Kendall
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Author contact information:
E-mail: philip-fuse@shadowmagic.org.uk
*/
/* NB: this file is autogenerated by '../../z80/z80.pl' from 'opcodes_ddfd.dat',
and included in 'z80_ops.c' */
case 0x09: /* ADD REGISTER,BC */
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
ADD16(REGISTER,BC);
break;
case 0x19: /* ADD REGISTER,DE */
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
ADD16(REGISTER,DE);
break;
case 0x21: /* LD REGISTER,nnnn */
REGISTERL=readbyte(PC++);
REGISTERH=readbyte(PC++);
break;
case 0x22: /* LD (nnnn),REGISTER */
LD16_NNRR(REGISTERL,REGISTERH);
break;
case 0x23: /* INC REGISTER */
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
REGISTER++;
break;
case 0x24: /* INC REGISTERH */
INC(REGISTERH);
break;
case 0x25: /* DEC REGISTERH */
DEC(REGISTERH);
break;
case 0x26: /* LD REGISTERH,nn */
REGISTERH = readbyte( PC++ );
break;
case 0x29: /* ADD REGISTER,REGISTER */
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
ADD16(REGISTER,REGISTER);
break;
case 0x2a: /* LD REGISTER,(nnnn) */
LD16_RRNN(REGISTERL,REGISTERH);
break;
case 0x2b: /* DEC REGISTER */
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
REGISTER--;
break;
case 0x2c: /* INC REGISTERL */
INC(REGISTERL);
break;
case 0x2d: /* DEC REGISTERL */
DEC(REGISTERL);
break;
case 0x2e: /* LD REGISTERL,nn */
REGISTERL = readbyte( PC++ );
break;
case 0x34: /* INC (REGISTER+dd) */
{
libspectrum_byte offset, bytetemp;
libspectrum_word wordtemp;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
wordtemp = REGISTER + (libspectrum_signed_byte)offset;
bytetemp = readbyte( wordtemp );
contend_read_no_mreq( wordtemp, 1 );
INC(bytetemp);
writebyte(wordtemp,bytetemp);
}
break;
case 0x35: /* DEC (REGISTER+dd) */
{
libspectrum_byte offset, bytetemp;
libspectrum_word wordtemp;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
wordtemp = REGISTER + (libspectrum_signed_byte)offset;
bytetemp = readbyte( wordtemp );
contend_read_no_mreq( wordtemp, 1 );
DEC(bytetemp);
writebyte(wordtemp,bytetemp);
}
break;
case 0x36: /* LD (REGISTER+dd),nn */
{
libspectrum_byte offset, value;
offset = readbyte( PC++ );
value = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 ); PC++;
writebyte( REGISTER + (libspectrum_signed_byte)offset, value );
}
break;
case 0x39: /* ADD REGISTER,SP */
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
ADD16(REGISTER,SP);
break;
case 0x44: /* LD B,REGISTERH */
B=REGISTERH;
break;
case 0x45: /* LD B,REGISTERL */
B=REGISTERL;
break;
case 0x46: /* LD B,(REGISTER+dd) */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
B = readbyte( REGISTER + (libspectrum_signed_byte)offset );
}
break;
case 0x4c: /* LD C,REGISTERH */
C=REGISTERH;
break;
case 0x4d: /* LD C,REGISTERL */
C=REGISTERL;
break;
case 0x4e: /* LD C,(REGISTER+dd) */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
C = readbyte( REGISTER + (libspectrum_signed_byte)offset );
}
break;
case 0x54: /* LD D,REGISTERH */
D=REGISTERH;
break;
case 0x55: /* LD D,REGISTERL */
D=REGISTERL;
break;
case 0x56: /* LD D,(REGISTER+dd) */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
D = readbyte( REGISTER + (libspectrum_signed_byte)offset );
}
break;
case 0x5c: /* LD E,REGISTERH */
E=REGISTERH;
break;
case 0x5d: /* LD E,REGISTERL */
E=REGISTERL;
break;
case 0x5e: /* LD E,(REGISTER+dd) */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
E = readbyte( REGISTER + (libspectrum_signed_byte)offset );
}
break;
case 0x60: /* LD REGISTERH,B */
REGISTERH=B;
break;
case 0x61: /* LD REGISTERH,C */
REGISTERH=C;
break;
case 0x62: /* LD REGISTERH,D */
REGISTERH=D;
break;
case 0x63: /* LD REGISTERH,E */
REGISTERH=E;
break;
case 0x64: /* LD REGISTERH,REGISTERH */
break;
case 0x65: /* LD REGISTERH,REGISTERL */
REGISTERH=REGISTERL;
break;
case 0x66: /* LD H,(REGISTER+dd) */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
H = readbyte( REGISTER + (libspectrum_signed_byte)offset );
}
break;
case 0x67: /* LD REGISTERH,A */
REGISTERH=A;
break;
case 0x68: /* LD REGISTERL,B */
REGISTERL=B;
break;
case 0x69: /* LD REGISTERL,C */
REGISTERL=C;
break;
case 0x6a: /* LD REGISTERL,D */
REGISTERL=D;
break;
case 0x6b: /* LD REGISTERL,E */
REGISTERL=E;
break;
case 0x6c: /* LD REGISTERL,REGISTERH */
REGISTERL=REGISTERH;
break;
case 0x6d: /* LD REGISTERL,REGISTERL */
break;
case 0x6e: /* LD L,(REGISTER+dd) */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
L = readbyte( REGISTER + (libspectrum_signed_byte)offset );
}
break;
case 0x6f: /* LD REGISTERL,A */
REGISTERL=A;
break;
case 0x70: /* LD (REGISTER+dd),B */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
writebyte( REGISTER + (libspectrum_signed_byte)offset, B );
}
break;
case 0x71: /* LD (REGISTER+dd),C */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
writebyte( REGISTER + (libspectrum_signed_byte)offset, C );
}
break;
case 0x72: /* LD (REGISTER+dd),D */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
writebyte( REGISTER + (libspectrum_signed_byte)offset, D );
}
break;
case 0x73: /* LD (REGISTER+dd),E */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
writebyte( REGISTER + (libspectrum_signed_byte)offset, E );
}
break;
case 0x74: /* LD (REGISTER+dd),H */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
writebyte( REGISTER + (libspectrum_signed_byte)offset, H );
}
break;
case 0x75: /* LD (REGISTER+dd),L */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
writebyte( REGISTER + (libspectrum_signed_byte)offset, L );
}
break;
case 0x77: /* LD (REGISTER+dd),A */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
writebyte( REGISTER + (libspectrum_signed_byte)offset, A );
}
break;
case 0x7c: /* LD A,REGISTERH */
A=REGISTERH;
break;
case 0x7d: /* LD A,REGISTERL */
A=REGISTERL;
break;
case 0x7e: /* LD A,(REGISTER+dd) */
{
libspectrum_byte offset;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
A = readbyte( REGISTER + (libspectrum_signed_byte)offset );
}
break;
case 0x84: /* ADD A,REGISTERH */
ADD(REGISTERH);
break;
case 0x85: /* ADD A,REGISTERL */
ADD(REGISTERL);
break;
case 0x86: /* ADD A,(REGISTER+dd) */
{
libspectrum_byte offset, bytetemp;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
bytetemp = readbyte( REGISTER + (libspectrum_signed_byte)offset );
ADD(bytetemp);
}
break;
case 0x8c: /* ADC A,REGISTERH */
ADC(REGISTERH);
break;
case 0x8d: /* ADC A,REGISTERL */
ADC(REGISTERL);
break;
case 0x8e: /* ADC A,(REGISTER+dd) */
{
libspectrum_byte offset, bytetemp;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
bytetemp = readbyte( REGISTER + (libspectrum_signed_byte)offset );
ADC(bytetemp);
}
break;
case 0x94: /* SUB A,REGISTERH */
SUB(REGISTERH);
break;
case 0x95: /* SUB A,REGISTERL */
SUB(REGISTERL);
break;
case 0x96: /* SUB A,(REGISTER+dd) */
{
libspectrum_byte offset, bytetemp;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
bytetemp = readbyte( REGISTER + (libspectrum_signed_byte)offset );
SUB(bytetemp);
}
break;
case 0x9c: /* SBC A,REGISTERH */
SBC(REGISTERH);
break;
case 0x9d: /* SBC A,REGISTERL */
SBC(REGISTERL);
break;
case 0x9e: /* SBC A,(REGISTER+dd) */
{
libspectrum_byte offset, bytetemp;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
bytetemp = readbyte( REGISTER + (libspectrum_signed_byte)offset );
SBC(bytetemp);
}
break;
case 0xa4: /* AND A,REGISTERH */
AND(REGISTERH);
break;
case 0xa5: /* AND A,REGISTERL */
AND(REGISTERL);
break;
case 0xa6: /* AND A,(REGISTER+dd) */
{
libspectrum_byte offset, bytetemp;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
bytetemp = readbyte( REGISTER + (libspectrum_signed_byte)offset );
AND(bytetemp);
}
break;
case 0xac: /* XOR A,REGISTERH */
XOR(REGISTERH);
break;
case 0xad: /* XOR A,REGISTERL */
XOR(REGISTERL);
break;
case 0xae: /* XOR A,(REGISTER+dd) */
{
libspectrum_byte offset, bytetemp;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
bytetemp = readbyte( REGISTER + (libspectrum_signed_byte)offset );
XOR(bytetemp);
}
break;
case 0xb4: /* OR A,REGISTERH */
OR(REGISTERH);
break;
case 0xb5: /* OR A,REGISTERL */
OR(REGISTERL);
break;
case 0xb6: /* OR A,(REGISTER+dd) */
{
libspectrum_byte offset, bytetemp;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
bytetemp = readbyte( REGISTER + (libspectrum_signed_byte)offset );
OR(bytetemp);
}
break;
case 0xbc: /* CP A,REGISTERH */
CP(REGISTERH);
break;
case 0xbd: /* CP A,REGISTERL */
CP(REGISTERL);
break;
case 0xbe: /* CP A,(REGISTER+dd) */
{
libspectrum_byte offset, bytetemp;
offset = readbyte( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 );
contend_read_no_mreq( PC, 1 ); PC++;
bytetemp = readbyte( REGISTER + (libspectrum_signed_byte)offset );
CP(bytetemp);
}
break;
case 0xcb: /* shift DDFDCB */
{
libspectrum_word tempaddr; libspectrum_byte opcode3;
contend_read( PC, 3 );
tempaddr =
REGISTER + (libspectrum_signed_byte)readbyte_internal( PC );
PC++; contend_read( PC, 3 );
opcode3 = readbyte_internal( PC );
contend_read_no_mreq( PC, 1 ); contend_read_no_mreq( PC, 1 ); PC++;
#ifdef HAVE_ENOUGH_MEMORY
switch(opcode3) {
#include "z80_ddfdcb.c"
}
#else /* #ifdef HAVE_ENOUGH_MEMORY */
z80_ddfdcbxx(opcode3,tempaddr);
#endif /* #ifdef HAVE_ENOUGH_MEMORY */
}
break;
case 0xe1: /* POP REGISTER */
POP16(REGISTERL,REGISTERH);
break;
case 0xe3: /* EX (SP),REGISTER */
{
libspectrum_byte bytetempl, bytetemph;
bytetempl = readbyte( SP );
bytetemph = readbyte( SP + 1 ); contend_read_no_mreq( SP + 1, 1 );
writebyte( SP + 1, REGISTERH );
writebyte( SP, REGISTERL );
contend_write_no_mreq( SP, 1 ); contend_write_no_mreq( SP, 1 );
REGISTERL=bytetempl; REGISTERH=bytetemph;
}
break;
case 0xe5: /* PUSH REGISTER */
contend_read_no_mreq( IR, 1 );
PUSH16(REGISTERL,REGISTERH);
break;
case 0xe9: /* JP REGISTER */
PC=REGISTER; /* NB: NOT INDIRECT! */
break;
case 0xf9: /* LD SP,REGISTER */
contend_read_no_mreq( IR, 1 );
contend_read_no_mreq( IR, 1 );
SP = REGISTER;
break;
default: /* Instruction did not involve H or L, so backtrack
one instruction and parse again */
PC--;
R--;
opcode = opcode2;
#ifdef HAVE_ENOUGH_MEMORY
goto end_opcode;
#else /* #ifdef HAVE_ENOUGH_MEMORY */
return 1;
#endif /* #ifdef HAVE_ENOUGH_MEMORY */
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