54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
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#include "master.h"
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s64 current_millis(void)
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{
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FILETIME t;
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GetSystemTimeAsFileTime(&t);
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return (((s64)t.dwLowDateTime | (s64)t.dwHighDateTime<<32)
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- EPOCH_OFFSET) / 10000;
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}
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DEFINE_PRIMITIVE(cwd)
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{
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F_CHAR buf[MAX_PATH + 4];
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if(!GetCurrentDirectory(MAX_PATH + 4, buf))
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io_error();
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box_u16_string(buf);
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}
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DEFINE_PRIMITIVE(cd)
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{
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SetCurrentDirectory(unbox_u16_string());
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}
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void seh_call(void (*func)(), exception_handler_t *handler)
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{
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exception_record_t record;
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asm volatile("mov %%fs:0, %0" : "=r" (record.next_handler));
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asm volatile("mov %0, %%fs:0" : : "r" (&record));
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record.handler_func = handler;
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func();
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asm volatile("mov %0, %%fs:0" : "=r" (record.next_handler));
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}
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long exception_handler(PEXCEPTION_RECORD rec, void *frame, void *ctx, void *dispatch)
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{
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if(rec->ExceptionCode == EXCEPTION_ACCESS_VIOLATION)
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memory_protection_error(
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rec->ExceptionInformation[1],
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native_stack_pointer());
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else if(rec->ExceptionCode == EXCEPTION_FLT_DIVIDE_BY_ZERO
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|| rec->ExceptionCode == EXCEPTION_INT_DIVIDE_BY_ZERO)
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general_error(ERROR_DIVIDE_BY_ZERO,F,F,false,(void*)rec->ExceptionInformation[1]);
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else
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signal_error(11,(void*)rec->ExceptionInformation[1]);
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return -1; /* unreachable */
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}
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void run_toplevel(void)
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{
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seh_call(run, exception_handler);
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}
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