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Top Forums Programming How Can a Machine Reads a Compiler Since A Compiler is Written in Text! Not Binaries? Post 302257985 by f.ben.isaac on Thursday 13th of November 2008 01:41:50 PM
Old 11-13-2008
Quote:
Originally Posted by jim mcnamara
You are asking the chicken & egg question - which comes first?
You can write a binary executable directly in hex, so very early assemblers (which are compilers) were written that way. There also were link editors as well. ld for example.

I like Corona's explanation. I think at one time I read that as well.

Most compilers are based on lex & yacc. Read about those.

>>You can write a binary executable directly in hex,

And HEX, so what translates these hexes to binaries for the compiler?
If a agree with you, writing in binary 1 & 0 will make machine understand what do you want to do! There has to be convertion between hexes to binaries and since hex is not binaries, what does the conversion! Machine does not giva a damn to anything else except if there is another binary written as a translator who translates hexes back to binary. Any idea?

I'm very new to this, i ask in a very dummy questions to know the basics - only overview, no technical stuff....

THANKS
 

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GLGETPROGRAMBINARY(3G)						  [FIXME: manual]					    GLGETPROGRAMBINARY(3G)

NAME
glGetProgramBinary - return a binary representation of a program object's compiled and linked executable source C SPECIFICATION
void glGetProgramBinary(GLuint program, GLsizei bufsize, GLsizei *length, GLenum *binaryFormat, void *binary); PARAMETERS
program Specifies the name of a program object whose binary representation to retrieve. bufSize Specifies the size of the buffer whose address is given by binary. length Specifies the address of a variable to receive the number of bytes written into binary. binaryFormat Specifies the address of a variable to receive a token indicating the format of the binary data returned by the GL. binary Specifies the address an array into which the GL will return program's binary representation. DESCRIPTION
glGetProgramBinary returns a binary representation of the compiled and linked executable for program into the array of bytes whose address is specified in binary. The maximum number of bytes that may be written into binary is specified by bufSize. If the program binary is greater in size than bufSize bytes, then an error is generated, otherwise the actual number of bytes written into binary is returned in the variable whose address is given by length. If length is NULL, then no length is returned. The format of the program binary written into binary is returned in the variable whose address is given by binaryFormat, and may be implementation dependent. The binary produced by the GL may subsequently be returned to the GL by calling glProgramBinary(), with binaryFormat and length set to the values returned by glGetProgramBinary, and passing the returned binary data in the binary parameter. ERRORS
GL_INVALID_OPERATION is generated if bufSize is less than the size of GL_PROGRAM_BINARY_LENGTH for program. GL_INVALID_OPERATION is generated if GL_LINK_STATUS for the program object is false. ASSOCIATED GETS
glGetProgram() with argument GL_PROGRAM_BINARY_LENGTH SEE ALSO
glGetProgram(), glProgramBinary() COPYRIGHT
Copyright (C) 2010 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/. [FIXME: source] 05/30/2012 GLGETPROGRAMBINARY(3G)
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