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Deep Blue C is a compiler for a subset of the C programming language for the Atari 8-bit family distributed by the Atari Program Exchange. The compiler is a version of Ron Cain's public domain Small-C modified by John Howard Palevich to run on the Atari computer hardware. Palevich also wrote the Atari 8-bit game Dandy. The syntax supported by Deep Blue C is close to that of ANSI C with significant limitations.
Contents
The source code to the compiler was sold as Deep Blue Secrets, also from APX.
Limitations
The following language constructs are not supported:
Other non-standard properties of Deep Blue C:
switch clause must be ended with: break, continue, or return.$( and $) are used instead of { and }.Sample program
The exemplary program writes the "Hello World!" message on the user screen.
main() $( printf("Hello World!"); $)Performance
The Deep Blue C compiler does not create the native executable for 6502 processor but intermediate code called C-code. The C-code is then executed by C-code interpreter. According to Atari 8-bit FAQ the compiler creates binary code for Intel 8080 processor and then executed by 8080 virtual machine. This is the main cause of low performance of generated code.