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f67d695254
The test userspace process now runs at linear address 0x300000 which is mapped to a dynamically allocated page from the MemoryManager. Cool!
51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
#pragma once
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#define DO_SYSCALL_A0(function) Syscall::invoke((DWORD)(function))
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#define DO_SYSCALL_A1(function, arg1) Syscall::invoke((DWORD)(function), (DWORD)(arg1))
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#define DO_SYSCALL_A2(function, arg1, arg2) Syscall::invoke((DWORD)(function), (DWORD)(arg1), (DWORD)(arg2))
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#define DO_SYSCALL_A3(function, arg1, arg2, arg3) Syscall::invoke((DWORD)(function), (DWORD)(arg1), (DWORD)(arg2), (DWORD)arg3)
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namespace Syscall {
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enum Function {
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Sleep = 0x1982,
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Yield = 0x1983,
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PosixOpen = 0x1985,
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PosixClose = 0x1986,
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PosixRead = 0x1987,
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PosixSeek = 0x1988,
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PosixKill = 0x1989,
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PosixGetuid = 0x1990,
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};
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void initialize();
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inline DWORD invoke(DWORD function)
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{
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DWORD result;
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asm("int $0x80":"=a"(result):"a"(function));
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return result;
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}
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inline DWORD invoke(DWORD function, DWORD arg1)
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{
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DWORD result;
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asm("int $0x80":"=a"(result):"a"(function),"d"(arg1));
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return result;
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}
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inline DWORD invoke(DWORD function, DWORD arg1, DWORD arg2)
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{
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DWORD result;
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asm("int $0x80":"=a"(result):"a"(function),"d"(arg1),"c"(arg2));
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return result;
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}
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inline DWORD invoke(DWORD function, DWORD arg1, DWORD arg2, DWORD arg3)
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{
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DWORD result;
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asm volatile("int $0x80":"=a"(result):"a"(function),"d"(arg1),"c"(arg2),"b"(arg3));
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return result;
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}
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}
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