mirror of
https://github.com/ksherlock/mpw.git
synced 2024-12-01 13:52:22 +00:00
144 lines
3.4 KiB
C++
144 lines
3.4 KiB
C++
/*
|
|
* Copyright (c) 2013, Kelvin W Sherlock
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#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);
|
|
}
|
|
|
|
} |