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https://github.com/ksherlock/mpw.git
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eliminate dead code
This commit is contained in:
Kelvin Sherlock
parent
6952c106b6
commit
20a1e81d60
221
bin/loader.cpp
221
bin/loader.cpp
@ -110,26 +110,6 @@ void WriteLong(void *data, uint32_t offset, uint32_t value)
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((uint8_t *)data)[offset++] = value;
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}
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/*
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//0x0316 = MPWArgs *
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struct MPWArgs
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{
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uint32_t MPGM; // = 'MPGM';
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int32_t argptr;
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args:
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uint16_t SH;
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uint32_t argc;
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uint32_t argv;
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uint32_t envp;
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envp stored as key\0value\0, not key=value\0
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};
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0x910 = name ptr (32-char pstring)
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*/
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uint32_t load(const char *file)
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{
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@ -273,208 +253,7 @@ uint32_t load(const char *file)
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return returnAddress;
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}
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#if 0
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void InitializeMPW(int argc, char **argv)
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{
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argv[0] = basename(argv[0]);
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// 0x0910 CurApName
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{
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char * name = argv[0];
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char str32[32];
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int l = strlen(name);
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l = std::min(l, 32);
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str32[0] = l;
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memcpy(str32 + 1, name, l);
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while (l < 32) str32[l++] = 0;
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memcpy(Memory + 0x910, str32, 32);
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}
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// 0x0316 is a pointer to the argc, argv, envp.
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// very ugly.
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uint32_t argvAddress = 0;
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uint32_t envpAddress = 0;
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{
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std::vector<uint32_t> argvSpine;
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argvSpine.reserve(argc + 1);
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for (int i = 0; i < argc; ++i)
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{
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int length;
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uint32_t address;
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length = strlen(argv[i]);
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address = EmulatedNewPtr(length + 1);
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memcpy(Memory + address, argv[i], length + 1);
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argvSpine.push_back(address);
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}
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argvSpine.push_back(0);
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argvAddress = EmulatedNewPtr(4 * argvSpine.size());
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uint32_t address = argvAddress;
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for (uint32_t x : argvSpine)
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{
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WriteLong(Memory, address, x);
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address += 4;
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}
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}
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// same thing for envp... but \0 instead of =
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{
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envpAddress = EmulatedNewPtr(4);
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WriteLong(Memory, envpAddress, 0);
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}
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// _macpgminfo
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uint32_t address = EmulatedNewPtr(8 + 0x30);
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address = 0x2000; // monitor reads...
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WriteLong(Memory, 0x0316, address);
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WriteLong(Memory, address, 0x4d50474d); // MPGM - magic
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WriteLong(Memory, address + 4, 0x2100 /* address + 8 */); // block ptr
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// address += 8;
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address = 0x2100;
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WriteWord(Memory, address + 0x00, 0x5348); // SH - more magic
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WriteLong(Memory, address + 0x02, argc);
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WriteLong(Memory, address + 0x06, argvAddress);
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WriteLong(Memory, address + 0x0a, envpAddress);
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// possible the application exit code...
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WriteLong(Memory, address + 0x0e, 0x00007000);
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WriteLong(Memory, address + 0x12, 0x00008000);
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WriteLong(Memory, address + 0x16, 0x00009000);
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WriteWord(Memory, address + 0x1a, 0x0190); // ????
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// default file table? block of size 0x3c.
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// copied into IntEnv+0x1c
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// _initIOPtable
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WriteLong(Memory, address + 0x1c, 0x0000a000);
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// stdin
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WriteLong(Memory, 0x0000a000+0, 0x00010000); // ???
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WriteLong(Memory, 0x0000a000+4, 0x00003000); // type ptr (FSYS)
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WriteLong(Memory, 0x0000a000+8, STDIN_FILENO); // ptr to refcount/fd struct?
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WriteLong(Memory, 0x0000a000+12, 0x00000000); // transferCount
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WriteLong(Memory, 0x0000a000+16, 0x00000000); // transferBuffer
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// stdout
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//0x0001 = readable
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//0x0002 = writable
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// others?...
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WriteLong(Memory, 0x0000a000+20, 0x00020000); // ??? {uint16_t flags, uint16_t error? }
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WriteLong(Memory, 0x0000a000+24, 0x00003000); // type ptr (FSYS)
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WriteLong(Memory, 0x0000a000+28, STDOUT_FILENO); // ptr to refcount/fd struct?
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WriteLong(Memory, 0x0000a000+32, 0x00000000); //???
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WriteLong(Memory, 0x0000a000+36, 0x00000000); //???
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// stderr
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WriteLong(Memory, 0x0000a000+40, 0x00020000); // ???
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WriteLong(Memory, 0x0000a000+44, 0x00003000); // type ptr (FSYS)
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WriteLong(Memory, 0x0000a000+48, STDERR_FILENO); // ptr to refcount/fd struct?
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WriteLong(Memory, 0x0000a000+52, 0x00000000); //???
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WriteLong(Memory, 0x0000a000+56, 0x00000000); //???
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WriteWord(Memory, 0xf000, MPW::fQuit);
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WriteWord(Memory, 0xf002, 0x4E75); // rts
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WriteWord(Memory, 0xf004, MPW::fAccess);
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WriteWord(Memory, 0xf006, 0x4E75); // rts
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WriteWord(Memory, 0xf008, MPW::fClose);
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WriteWord(Memory, 0xf00a, 0x4E75); // rts
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WriteWord(Memory, 0xf00c, MPW::fRead);
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WriteWord(Memory, 0xf00e, 0x4E75); // rts
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WriteWord(Memory, 0xf010, MPW::fWrite);
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WriteWord(Memory, 0xf012, 0x4E75); // rts
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WriteWord(Memory, 0xf014, MPW::fIOCtl);
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WriteWord(Memory, 0xf016, 0x4E75); // rts
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// StdDevs (0x78 bytes)
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// copied into a $78 byte buffer stored at _IntEnv+20
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// this has pointers to read/write functions
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// (although the executable has it's own functions as well...)
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WriteLong(Memory, address + 0x20, 0x00003000);
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WriteLong(Memory, 0x00003000+0, 0x46535953); // 'FSYS'
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WriteLong(Memory, 0x00003000+4, 0xf004); //access
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WriteLong(Memory, 0x00003000+8, 0xf008); // close
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WriteLong(Memory, 0x00003000+12, 0xf00c); // read
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WriteLong(Memory, 0x00003000+16, 0xf010); // write
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WriteLong(Memory, 0x00003000+20, 0xf014); // ioctl
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WriteLong(Memory, 0x00003000+24, 0x45434f4e); // 'ECON'
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WriteLong(Memory, 0x00003000+28, 0); //access
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WriteLong(Memory, 0x00003000+32, 0); // close
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WriteLong(Memory, 0x00003000+36, 0); // read
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WriteLong(Memory, 0x00003000+40, 0); // write
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WriteLong(Memory, 0x00003000+44, 0); // ioctl
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WriteLong(Memory, 0x00003000+48, 0x53595354); // 'SYST'
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WriteLong(Memory, 0x00003000+52, 0); //access
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WriteLong(Memory, 0x00003000+56, 0); // close
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WriteLong(Memory, 0x00003000+60, 0); // read
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WriteLong(Memory, 0x00003000+68, 0); // write
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WriteLong(Memory, 0x00003000+72, 0); // ioctl
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WriteLong(Memory, 0x00003000+76, 0);
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WriteLong(Memory, 0x00003000+80, 0);
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WriteLong(Memory, 0x00003000+84, 0);
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WriteLong(Memory, 0x00003000+88, 0);
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WriteLong(Memory, 0x00003000+92, 0);
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WriteLong(Memory, 0x00003000+96, 0);
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WriteLong(Memory, 0x00003000+100, 0);
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WriteLong(Memory, 0x00003000+104, 0);
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WriteLong(Memory, 0x00003000+108, 0);
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WriteLong(Memory, 0x00003000+112, 0);
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WriteLong(Memory, 0x00003000+116, 0);
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// _RTInit fills in this location with &_IntEnv.
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WriteLong(Memory, address + 0x24, 0x00004000);
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WriteLong(Memory, address + 0x28, 0x00005000);
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WriteLong(Memory, address + 0x2c, 0x00006000);
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// 0x1c should have something, too .... :(
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// 0x031a - Lo3Bytes
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WriteLong(Memory, 0x031a, 0x00ffffff);
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// 0x0a02 - OneOne
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WriteLong(Memory, 0x0a02, 0x00010001);
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// 0x0a06 - MinusOne
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WriteLong(Memory, 0x0a06, 0xffffffff);
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// todo -- expects high stack, low heap.
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// the allocator currently works from the top down,
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// so put stack at top of memory?
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// 0x0130 -- ApplLimit
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WriteLong(Memory, 0x0130, Flags.ram - 1);
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}
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#endif
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void GlobalInit()
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{
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