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SANE - add FTINTX, FCSTR2DEC

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This commit is contained in:
Kelvin Sherlock 2015-02-19 15:32:13 -05:00
parent 2766493398
commit f2dc249614
1 changed files with 41 additions and 8 deletions
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49
toolbox/sane.cpp
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@ -885,6 +885,29 @@ using std::to_string;
return 0;
}
uint16_t ftintx()
{
// truncate (round towards 0 regardless of rounding settings)
uint32_t address;
uint16_t op;
StackFrame<6>(address, op);
Log(" FTINTX(%08x)\n", address);
extended s = readnum<extended>(address);
if (ToolBox::Trace)
{
std::string tmp1 = to_string(s);
Log(" %s\n", tmp1.c_str());
}
s = std::trunc(s);
writenum<extended>(s, address);
return 0;
}
extern "C" void cpuSetFlagsAbs(UWO f);
uint16_t fp68k(uint16_t trap)
{
@ -977,7 +1000,7 @@ using std::to_string;
return fdecimal<extended>("FDEC2X");
break;
case 0x0016: return ftintx();
case 0x0017: return fprocentry();
case 0x0019: return fprocexit();
case 0x0003: return fgetenv();
@ -1065,7 +1088,7 @@ using std::to_string;
return tmp;
}
uint32_t fpstr2dec()
uint32_t fstr2dec(char type)
{
// void str2dec(const char *s,short *ix,decimal *d,short *vp);
@ -1098,13 +1121,16 @@ struct decimal {
index = memoryReadWord(indexPtr);
std::string str = ToolBox::ReadPString(stringPtr, false);
Log(" FPSTR2DEC(%s, %04x, %08x, %08x)\n",
str.c_str(), index, decimalPtr, validPtr);
std::string str;
if (type == 'P') str = ToolBox::ReadPString(stringPtr, false);
if (type == 'C') str = ToolBox::ReadCString(stringPtr, false);
index--;
Log(" F%cSTR2DEC(%s, %04x, %08x, %08x)\n",
type, str.c_str(), index, decimalPtr, validPtr);
if (type == 'P') index--;
str2dec(str, index, d, valid);
index++;
if (type == 'P') index++;
memoryWriteWord(index, indexPtr);
memoryWriteWord(valid, validPtr);
@ -1149,9 +1175,16 @@ struct decimal {
case 0x02:
// fpstr2dec
return fpstr2dec();
return fstr2dec('P');
break;
case 0x04:
// fcstr2dec
return fstr2dec('C');
break;
default:
fprintf(stderr, "decstr68k -- op %04x is not yet supported\n", op);
exit(1);