mirror of
https://github.com/ksherlock/mpw.git
synced 2024-06-01 02:41:33 +00:00
118 lines
2.1 KiB
C++
118 lines
2.1 KiB
C++
#include "mpw.h"
|
|
#include "mpw_internal.h"
|
|
|
|
#include <algorithm>
|
|
#include <memory>
|
|
|
|
#include <cerrno>
|
|
#include <cstdio>
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <cpu/defs.h>
|
|
#include <cpu/fmem.h>
|
|
#include <cpu/cpuModule.h>
|
|
|
|
#include <macos/errors.h>
|
|
|
|
#include <toolbox/os.h>
|
|
#include <toolbox/os_internal.h>
|
|
|
|
|
|
namespace MPW
|
|
{
|
|
|
|
|
|
void ftrap_read(uint16_t trap)
|
|
{
|
|
|
|
uint32_t d0;
|
|
|
|
uint32_t sp = cpuGetAReg(7);
|
|
uint32_t parm = memoryReadLong(sp + 4);
|
|
|
|
MPWFile f;
|
|
|
|
f.flags = memoryReadWord(parm);
|
|
f.error = memoryReadWord(parm + 2);
|
|
f.device = memoryReadLong(parm + 4);
|
|
f.cookie = memoryReadLong(parm + 8);
|
|
f.count = memoryReadLong(parm + 12);
|
|
f.buffer = memoryReadLong(parm + 16);
|
|
|
|
|
|
Log("%04x Read(%08x)\n", trap, parm);
|
|
|
|
d0 = 0;
|
|
int fd = f.cookie;
|
|
ssize_t size;
|
|
|
|
Log(" read(%04x, %08x, %08x)", fd, f.buffer, f.count);
|
|
size = OS::Internal::FDEntry::read(fd, memoryPointer(f.buffer), f.count);
|
|
//Log(" -> %ld\n", size);
|
|
|
|
if (size < 0)
|
|
{
|
|
//f.count = 0;
|
|
f.error = MacOS::ioErr; // ioErr
|
|
d0 = errno_to_errno(errno);
|
|
}
|
|
else
|
|
{
|
|
f.count -= size;
|
|
f.error = 0;
|
|
}
|
|
|
|
// write back...
|
|
memoryWriteWord(f.error, parm + 2);
|
|
memoryWriteLong(f.count, parm + 12);
|
|
|
|
cpuSetDReg(0, d0);
|
|
}
|
|
|
|
void ftrap_write(uint16_t trap)
|
|
{
|
|
uint32_t d0;
|
|
|
|
uint32_t sp = cpuGetAReg(7);
|
|
uint32_t parm = memoryReadLong(sp + 4);
|
|
|
|
MPWFile f;
|
|
|
|
f.flags = memoryReadWord(parm);
|
|
f.error = memoryReadWord(parm + 2);
|
|
f.device = memoryReadLong(parm + 4);
|
|
f.cookie = memoryReadLong(parm + 8);
|
|
f.count = memoryReadLong(parm + 12);
|
|
f.buffer = memoryReadLong(parm + 16);
|
|
|
|
Log("%04x Write(%08x)\n", trap, parm);
|
|
|
|
|
|
d0 = 0;
|
|
int fd = f.cookie;
|
|
ssize_t size;
|
|
|
|
Log(" write(%04x, %08x, %08x)\n", fd, f.buffer, f.count);
|
|
size = OS::Internal::FDEntry::write(fd, memoryPointer(f.buffer), f.count);
|
|
|
|
if (size < 0)
|
|
{
|
|
//f.count = 0;
|
|
f.error = MacOS::ioErr; // ioErr
|
|
d0 = errno_to_errno(errno);
|
|
}
|
|
else
|
|
{
|
|
f.count -= size;
|
|
f.error = 0;
|
|
}
|
|
|
|
// write back...
|
|
memoryWriteWord(f.error, parm + 2);
|
|
memoryWriteLong(f.count, parm + 12);
|
|
|
|
cpuSetDReg(0, d0);
|
|
}
|
|
|
|
} |