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Text File | 1993-10-23 | 6.3 KB | 343 lines

.if .not .def _MACROS_ _MACROS_ = 1 .if .not .def _STDDEF_ .include #stddef .endif ; version 2.12.90 (C) Natuerlich! (This comes from 4 years ago) ; ------------------------------------------------------------- ; Purists might object to the use of 'BASIC'-like macros ; and it is true, that with every macro U use you might be losing ; some control (if you aren't careful) or that at least the ; temptation is very big to code sloppily to use a macro. But ; since I am currently editing on on a 24 line display, too many ; lda sta, sequences would just fill up too much screen space ; and I am not that brilliant to keep all this stuff in my brain, ; in 100% KODAK quality. Also I don't like printer output ; ---------------------------------------------------------------- ; ; defines for macro use ; ; Note that in order to not bother the internal label table with ; too many "temporary helper" variables, we are going to use the ; following shortcut: ; @0 means low level temporary variable (e.g. @STT) ; @1 means first level .. (e.g. POKE) ; @2 means second level.. ; from the fourth level, we just use @<name> .macro @stt @0 .= @a .if %0 = 2 @0 .= %2 .endif .if @0 = @a sta %1 .else .if @0 = @x stx %1 .else sty %1 .endif .endif .endm .macro @ldi @0 .= @a .if %0 = 2 @0 .= %2 .endif .if %2 = @a lda #%1 .else .if %2 = @x ldx #%1 .else ldy #%1 .endif .endif .endm .macro @ldf @0 .= @a .if %0 = 2 @0 .= %2 .endif .if %2 = @a lda %1 .else .if %2 = @x ldx %1 .else ldy %1 .endif .endif .endm .macro poke @1 .= @a .if %0 = 3 @1 .= %3 .endif @LDI %2,@1 @STT %1,@1 .endm .macro dpoke @1 .= @a .if %0 = 3 @1 .= %3 .endif @LDI <%2,@1 @STT %1,@1 @LDI >%2,@1 @STT %1+1,@1 .endm .macro move @1 .= @a .if %0 = 3 @1 .= %3 .endif @LDF %1,@1 @STT %2,@1 .endm .macro dmove @1 .= @a .if %0 = 3 @1 .= %3 .endif @LDF %1,@1 @STT %2,@1 @LDF %1+1,@1 @STT %2+1,@1 .endm ; the following macros are for indirect pokes .macro poke_x lda #<%2 sta %1,x .endm .macro poke_y lda #<%2 sta %1,y .endm .macro _move_x lda %1 sta %2,x .endm .macro _move_y lda %1 sta %2,y .endm .macro dpoke_x lda #<%2 sta %1,x lda #>%2 sta %1+1,x .endm .macro dpoke_y lda #<%2 sta %1,y lda #>%2 sta %1+1,y .endm .macro _dmove_x lda %1 sta %2,x lda %1+1 sta %2+1,x .endm .macro _dmove_y lda %1 sta %2,y lda %1+1 sta %2+1,y .endm ; usage: ddec <address> decrements 8 bit byte by 2 .macro ddec dec %1 dec %1 .endm ; usage: dinc <address> increments 8 bit byte by 2 .macro dinc inc %1 inc %1 .endm ; usage: ddey decrements Y by 2 .macro ddey dey dey .endm ; usage: diny increments Y by 2 .macro diny iny iny .endm ; usage: dinx decrements X by 2 .macro ddex dex dex .endm ; usage: dinx increments X by 2 .macro dinx inx inx .endm ; usage: lxy <value>,[flags] loads value in x/y LSB/MSB .macro lxy @0 .= @p1 .if %0 = 2 @0 .= %2 .endif .if @0 & @p1 ldx #<%1 ldy #>%1 .else ldx %1 ldy %1+1 .endif .endm ; usage: sxy <address> stores x/y in LSB/MSB of a 16 bit word .macro sxy stx %1 sty %1+1 .endm ; ------------------------------------------------------------- ; This is the macro for other macros. Assembles either a move ; or a poke (or a DPOKE or a DMOVE) ; Usage: ; @MOKE src,dst,select ; src as in POKE dst,src MOVE src,dst ; select -> see stddef.h65 ONLY %1 can be selected! ; -------------------------------------------------------------- .macro @moke .if %3 & @p1 poke %2,%1 .else move %1,%2 .endif .endm .macro @moke_x .if %3 & @p1 poke_x %2,%1 .else _move_x %1,%2 .endif .endm .macro @moke_y .if %3 & @p1 poke_y %2,%1 .else _move_y %1,%2 .endif .endm ; ------------------------------------------------------------- ; This is the macro for other macros. Assembles either a DPOKE ; or DMOVE) ; Usage: ; @DMOKE src,dst,select ; ; select -> stddef.h65 ; -------------------------------------------------------------- .macro @dmoke .if %3 & @p1 dpoke %2,%1 .else dmove %1,%2 .endif .endm .macro @dmoke_x .if %3 & @p1 dpoke_x %2,%1 .else _dmove_x %1,%2 .endif .endm .macro @dmoke_y .if %3 & @p1 dpoke_y %2,%1 .else _dmove_y %1,%2 .endif .endm ; ------------------------------------------------------------- ; This is the macro for other macros. Assembles either a direct ; or an immediate load. ; Usage: ; @MOAD src,select[,reglsb] ; ; select -> stddef.h65 ; reglsb -> @a @x @y ; -------------------------------------------------------------- .macro @moad @2lsb .= @a .if %0 > 2 @2lsb .= %3 .endif .if %2 & @p1 @ldi <%1,@2lsb .else @ldf %1,@2lsb .endif .endm ; ------------------------------------------------------------- ; This is the macro for other macros. Assembles either a direct ; or an immediate load. (as you can see these comments were ; copied again and again) ; Usage: ; @DMOAD src,select[,reglsb,regmsb] ; ; select -> stddef.h65 ; reglsb -> @a @x @y ; -------------------------------------------------------------- .macro @dmoad @2lsb .= @a @2msb .= @y .if %0 > 2 @2lsb .= %3 @2msb .= %4 .endif .if %2 & @p1 @ldi <%1,@2lsb @ldi >%1,@2msb .else @ldf %1,@2lsb @ldf %1+1,@2msb .endif .endm .endif