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more MAME fixes, some optimization

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@177 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-06-29 20:44:30 +00:00
parent 2c559c66ef
commit cfb3dfa0f2
10 changed files with 144 additions and 119 deletions
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35
cpu/Cyclone/OpArith.cpp
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@ -22,12 +22,11 @@ int OpArith(int op)
use=OpBase(op);
if (op!=use) { OpUse(op,use); return 0; } // Use existing handler
OpStart(op, sea|tea); Cycles=4;
OpStart(op, sea, tea); Cycles=4;
EaCalc(10,0x0000, sea,size,1);
EaRead(10, 10, sea,size,0,1);
EaCalc(11,0x003f, tea,size,1);
EaRead(10, 10, sea,size,0,1);
EaRead(11, 0, tea,size,0x003f,1);
ot(";@ Do arithmetic:\n");
@ -65,7 +64,7 @@ int OpArith(int op)
if (type==1 && size>=2 && tea<8) Cycles-=2;
}
OpEnd();
OpEnd(sea,tea);
return 0;
}
@ -128,7 +127,7 @@ int OpAddq(int op)
EaWrite(10, 1, ea,size,0x003f,1);
OpEnd();
OpEnd(ea);
return 0;
}
@ -195,7 +194,7 @@ int OpArithReg(int op)
}
}
OpEnd();
OpEnd(ea);
return 0;
}
@ -328,13 +327,13 @@ int OpMul(int op)
EaWrite(0, 1,rea, 2,0x0e00,1);
ot("endofop%.4x%s\n",op,ms?"":":");
OpEnd();
OpEnd(ea);
ot("divzero%.4x%s\n",op,ms?"":":");
ot(" mov r0,#0x14 ;@ Divide by zero\n");
ot(" bl Exception\n");
Cycles+=38;
OpEnd();
OpEnd(ea);
ot("\n");
return 0;
@ -370,7 +369,7 @@ int OpAbcd(int op)
if (sea==0x27||dea==0x27) use=op; // ..except -(a7)
if (op!=use) { OpUse(op,use); return 0; } // Use existing handler
OpStart(op,sea|dea); Cycles=6;
OpStart(op,sea,dea); Cycles=6;
EaCalc( 0,0x0007, sea,0,1);
EaRead( 0, 10, sea,0,0x0007,1);
@ -438,7 +437,7 @@ int OpAbcd(int op)
ot(" strb r2,[r7,#0x45] ;@ Save X bit\n");
EaWrite(11, 0, dea,0,0x0e00,1);
OpEnd();
OpEnd(sea,dea);
return 0;
}
@ -493,7 +492,7 @@ int OpNbcd(int op)
ot(" mov r2,r9,lsr #28\n");
ot(" strb r2, [r7,#0x45]\n");
OpEnd();
OpEnd(ea);
return 0;
}
@ -538,7 +537,7 @@ int OpAritha(int op)
if (type!=1) EaWrite( 0, 1, dea,2,0x0e00,1);
OpEnd();
OpEnd(sea);
return 0;
}
@ -566,7 +565,7 @@ int OpAddx(int op)
if (size==0&&(sea==0x27||dea==0x27)) use=op; // ___x.b -(a7)
if (op!=use) { OpUse(op,use); return 0; } // Use existing handler
OpStart(op,sea|dea); Cycles=4;
OpStart(op,sea,dea); Cycles=4;
if(size>=2) Cycles+=4;
if(sea>=0x10) Cycles+=2;
@ -602,7 +601,7 @@ int OpAddx(int op)
ot(";@ Save result:\n");
EaWrite( 0, 1, dea,size,0x0e00,1);
OpEnd();
OpEnd(sea,dea);
return 0;
}
@ -660,7 +659,7 @@ int OpCmpEor(int op)
if (eor) EaWrite(10, 1,ea,size,0x003f,1);
OpEnd();
OpEnd(ea);
return 0;
}
@ -691,7 +690,7 @@ int OpCmpm(int op)
ot(" cmp r0,r10\n");
OpGetFlags(1,0); // Cmp like subtract
OpEnd();
OpEnd(sea);
return 0;
}
@ -745,13 +744,13 @@ int OpChk(int op)
ot(";@ old N remains\n");
ot(" bic r9,r9,#0x80000000 ;@ N\n");
ot(" orr r9,r9,r3\n");
OpEnd();
OpEnd(ea);
ot("chktrap%.4x%s ;@ CHK exception:\n",op,ms?"":":");
ot(" mov r0,#0x18\n");
ot(" bl Exception\n");
Cycles+=40;
OpEnd();
OpEnd(ea);
return 0;
}