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NAME CONVENTIONS In general, macros and variables provided by NeXT contain an underbar ('_') character. Exceptions to this rule occur for the addresses RESET and START. Symbols or 'define's which are treated as system constants or flags are in upper case. REGISTER USE Macros do not save any state. The calling routine must save any registers whose contents are needed after the call. The purpose of this conention is to minimize the amount of save/restore work necessary --- only the caller knows what has to be saved. The caller also normally loads all registers containing arguments for the called macro. This convention allows maximum use of any serendipitous register usage prior to the macro call. For example, successive envelope sections (e.g. DSPORCHSRC/expenv) can be called sequentially, with the current amplitude state variable being passed effortlessly in the A register. MEMORY SPACE NUMBERING Dsp memory spaces are numbered as follows (cf. @MSP directive of the DSP56000 Macro Assembler Reference Manual): 0 - none 1 - 'x' 2 - 'y' 3 - 'l' 4 - 'p'
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.