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templated fadd, fconvert

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This commit is contained in:
Kelvin Sherlock 2013-03-05 22:41:13 -05:00
parent cab4ae2b65
commit 44f1c5a048
1 changed files with 70 additions and 5 deletions
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75
toolbox/sane.cpp
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@ -238,7 +238,7 @@ namespace SANE
}
template<class SRCTYPE>
template<class SrcType, class DestType = extended>
uint16_t fadd(const char *name)
{
// faddi, etc.
@ -251,8 +251,8 @@ namespace SANE
Log(" %s(%08x, %08x, %04x)\n", name, src, dest, op);
SRCTYPE s = readnum<SRCTYPE>(src);
extended d = readnum<extended>(dest);
SrcType s = readnum<SrcType>(src);
DestType d = readnum<DestType>(dest);
if (ToolBox::Trace)
{
@ -263,7 +263,32 @@ namespace SANE
d = d + s;
writenum<extended>((extended)d, dest);
writenum<DestType>(d, dest);
return 0;
}
template<class SrcType, class DestType>
uint16_t fconvert(const char *name)
{
// type conversion.
uint16_t op;
uint32_t dest;
uint32_t src;
StackFrame<10>(src, dest, op);
Log(" %s(%08x, %08x, %04x)\n", name, src, dest, op);
SrcType s = readnum<SrcType>(src);
if (ToolBox::Trace)
{
std::string tmp1 = std::to_string(s);
Log(" %s\n", tmp1.c_str());
}
writenum<DestType>((DestType)s, dest);
return 0;
}
@ -280,17 +305,57 @@ namespace SANE
if (op == 0x0006) return fdivx();
if (op == 0x000b) return fx2dec();
if (op == 0x280e) return fl2x();
if (op == 0x0004) return fmulx();
switch(op)
{
// fadd...
case 0x0000: // faddx
return fadd<extended>("FADDX");
break;
case 0x2000: // faddi
return fadd<int16_t>("FADDI");
break;
// conversion
case 0x000e: // 2 versions for completeness.
case 0x0010:
return fconvert<extended, extended>("FX2X");
break;
case 0x0810:
return fconvert<extended, double>("FX2D");
break;
case 0x1010:
return fconvert<extended, float>("FX2S");
break;
// 0x3010 - x to comp
case 0x2010:
return fconvert<extended, int16_t>("FX2I");
break;
case 0x2810:
return fconvert<extended, int32_t>("FX2L");
break;
case 0x080e:
return fconvert<double, extended>("FD2X");
break;
case 0x100e:
return fconvert<float, extended>("FS2X");
break;
// 0x300e - comp to x
case 0x200e:
return fconvert<int16_t, extended>("FI2X");
break;
case 0x280e:
return fconvert<int32_t, extended>("FL2X");
break;
}