[sdcc-devel] Adding far code support

[Michael H. <mic...@ea...>]

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Hi Sandeep.  I'm having a look at adding far function support to the z80
port, but I'm a bit stuck.  Heres the story:

The gb and a z80 system I'm interested in have two code areas - one fixed,
and one other that can page in any of the remainder of the available
memory.  I want to create two types of code space - one non banked with
two byte function pointers which can use the standard call, ret for common
functions and another banked type with three byte pointers which do
calls and rets through intermediate bank switching functions.  I'm stuck
at the moment :)  It seems that the lex and yacc parts of sdcc currently
ignore the 'far' specifier on functions, with the type being overridden
when it detects that its a function being defined.  Any suggestions?  Or
is it time for me to learn yacc? :)

- -- Michael

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