Macintosh-SW/mpw
1
0
Fork 0
mirror of https://github.com/ksherlock/mpw.git synced 2024-05-28 22:41:33 +00:00
Code Issues Projects Releases Wiki Activity

.

Browse Source
This commit is contained in:
Kelvin Sherlock 2016-11-13 21:20:41 -05:00
parent 91c0160a3b
commit 61670e6a33
2 changed files with 14 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
toolbox/CMakeLists.txt
View File

@ -25,7 +25,7 @@ set(TOOLBOX_SRC
fs_spec.cpp
realpath.c
dispatch.cpp
fpinfo.cpp
floating_point.cpp
debug.cpp
)

38
toolbox/sane.cpp
View File

@ -40,7 +40,8 @@
#include "stackframe.h"
#include "complex.h"
#include "fpinfo.h"
#include "floating_point.h"
#include "endian.h"
using ToolBox::Log;
@ -167,25 +168,16 @@ using its_complicated::signbit;
template<>
long double readnum<long double>(uint32_t address)
{
uint8_t buffer[16];
uint8_t buffer[10];
static_assert(sizeof(long double) == 16 || sizeof(long double) == 12, "unexpected long double size");
for (unsigned i = 0; i < 10; ++i) buffer[i] = memoryReadByte(address + i);
// read and swap 10 bytes
// this is very much little endian.
long double xx = 0.0;
fpinfo fpi;
fpi.read<10, endian::big>(buffer);
for (unsigned i = 0; i < 10; ++i)
{
buffer[9 - i] = memoryReadByte(address + i);
}
// remainder are 0-filled.
for (unsigned i = 10; i < 16; ++i)
buffer[i] = 0;
// now cast...
return *((long double *)buffer);
fpi.write(xx);
return xx;
}
@ -235,16 +227,12 @@ using its_complicated::signbit;
template<>
void writenum<long double>(long double value, uint32_t address)
{
static_assert(sizeof(value) == 16 || sizeof(value) == 12, "unexpected long double size");
uint8_t buffer[16];
uint8_t buffer[10];
fpinfo fpi(value);
std::memcpy(buffer, &value, sizeof(value));
// copy 10 bytes over
// little-endian specific.
for(unsigned i = 0; i < 10; ++i)
memoryWriteByte(buffer[9 - i], address + i);
fpi.write<10, endian::native>(buffer);
for (unsigned i = 0; i < 10; ++i) memoryWriteByte(buffer[i], address + i);
}
decform decform::read(uint32_t address)