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Sync with MESS (nw)

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This commit is contained in:
Miodrag Milanovic 2012-08-21 10:09:35 +00:00
parent 5e694d69c2
commit 67c425e907
1 changed files with 76 additions and 3 deletions
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79
src/emu/cpu/v810/v810.c
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@ -285,9 +285,75 @@ static UINT32 opCMPi(v810_state *cpustate,UINT32 op) // cmpi imm5,r2
static UINT32 opSETFi(v810_state *cpustate,UINT32 op) // setf imm5,r2
{
UINT32 op1=I5(op);
UINT32 op2=cpustate->PSW&0xf;
UINT8 res=0;
op1&=0xf;
SETREG(cpustate,GET2,(op1==op2)?1:0);
switch(op1)
{
case 0: //bv
res=GET_OV;
break;
case 1: //bl
res=GET_CY;
break;
case 2: //be
res=GET_Z;
break;
case 3: //bnh
res=GET_Z||GET_CY;
break;
case 4: //bn
res=GET_S;
break;
case 5: //br
res=1;
break;
case 6: //blt
res=GET_S^GET_OV;
break;
case 7: //ble
res=GET_Z||(GET_S^GET_OV);
break;
case 8: //bnv
res=!GET_OV;
break;
case 9: //bnl
res=!GET_CY;
break;
case 10: //bne
res=!GET_Z;
break;
case 11: //bh
res=!(GET_Z||GET_CY);
break;
case 12: //bp
res=!GET_S;
break;
case 13: //nop
break;
case 14: //bge
res=!(GET_OV^GET_S);
break;
case 15: //bgt
res=!(GET_Z||(GET_OV^GET_S));
break;
}
SETREG(cpustate,GET2,res);
return clkIF;
}
@ -563,7 +629,7 @@ static UINT32 opRETI(v810_state *cpustate,UINT32 op)
static UINT32 opHALT(v810_state *cpustate,UINT32 op)
{
logerror("V810: HALT @ %X",cpustate->PC-2);
printf("V810: HALT @ %X",cpustate->PC-2);
return clkIF;
}
@ -691,6 +757,7 @@ static UINT32 opINB(v810_state *cpustate,UINT32 op) // in.b disp16[reg1],reg2
static UINT32 opCAXI(v810_state *cpustate,UINT32 op) // caxi disp16[reg1],reg2
{
printf("V810 CAXI execute\n");
cpustate->PC+=2;
return clkIF;
}
@ -822,6 +889,8 @@ static UINT32 opDIVr(v810_state *cpustate,UINT32 op) // div r1,r2
SET_OV((op1^op2^GETREG(cpustate,GET2)) == 0x80000000);
CHECK_ZS(GETREG(cpustate,GET2));
}
else
printf("DIVr divide by zero?\n");
return clkIF;
}
@ -836,6 +905,8 @@ static UINT32 opDIVUr(v810_state *cpustate,UINT32 op) // divu r1,r2
SET_OV((op1^op2^GETREG(cpustate,GET2)) == 0x80000000);
CHECK_ZS(GETREG(cpustate,GET2));
}
else
printf("DIVUr divide by zero?\n");
return clkIF;
}
@ -883,6 +954,8 @@ static void opDIVF(v810_state *cpustate,UINT32 op)
SET_OV(0);
if(val1!=0)
val2/=val1;
else
printf("DIVF divide by zero?\n");
SET_Z((val2==0.0)?1:0);
SET_S((val2<0.0)?1:0);
SETREG(cpustate,GET2,f2u(val2));