Add cc65 artifacts to repo for now

cc65/asminc/cbm610.inc

@@ -0,0 +1,121 @@
+;
+; Zero page variables and I/O definitions for the CBM 610
+;
+; Taken from a kernal disassembly done by myself in 1987.
+;
+; 1998-09-28, Ullrich von Bassewitz
+; 2014-04-02, Greg King
+
+
+; ---------------------------------------------------------------------------
+; Zeropage stuff
+
+ExecReg         := $00          ; Controls execution memory bank
+IndReg          := $01          ; Controls indirect indexed load-store bank
+
+TXTPTR          := $85          ; Far pointer into BASIC source code
+FNAM            := $90          ; Far pointer to LOAD/SAVE file-name
+FNAM_SEG        := $92
+STATUS          := $9C          ; Kernal I/O completion status
+FNAM_LEN        := $9D          ; Holds length of file-name
+
+; ---------------------------------------------------------------------------
+; Screen size
+
+XSIZE           = 80
+YSIZE           = 25
+
+; ---------------------------------------------------------------------------
+; I/O definitions
+
+
+; I/O  $d800: CRTC 6545
+
+.struct CRTC
+        ADDR    .byte
+        DATA    .byte
+.endstruct
+
+
+; I/O  $db00: CIA 6526, Inter Process Communication
+;
+;       IPCcia          =       $db00
+
+.struct CIA
+        PRA     .byte
+        PRB     .byte
+        DDRA    .byte
+        DDRB    .byte
+        .union
+            .struct
+                TALO    .byte
+                TAHI    .byte
+            .endstruct
+            TA          .word
+        .endunion
+        .union
+            .struct
+                TBLO    .byte
+                TBHI    .byte
+            .endstruct
+            TB          .word
+        .endunion
+        TOD10   .byte
+        TODSEC  .byte
+        TODMIN  .byte
+        TODHR   .byte
+        SDR     .byte
+        ICR     .byte
+        CRA     .byte
+        CRB     .byte
+.endstruct
+
+
+; I/O  $dc00: CIA 6526
+;
+;       cia             =       $dc00
+
+
+; I/O  $dd00: ACIA 6551
+;
+;       acia            =       $dd00
+
+.struct ACIA
+        DATA    .byte
+        STATUS  .byte
+        CMD     .byte
+        CTRL    .BYTE
+.endstruct
+
+
+; I/O  $de00: Triport #1 6525
+;
+;       tpi1            =       $de00
+
+.struct TPI
+        PRA     .byte
+        PRB     .byte
+        .union
+                PRC     .byte
+                INT     .byte
+        .endunion
+        DDRA    .byte
+        DDRB    .byte
+        .union
+                DDRC    .byte
+                IMR     .byte
+        .endunion
+        CR      .byte
+        AIR     .byte
+.endstruct
+
+
+; I/O  $df00: Triport #2 6525
+
+;       tpi2            =       $df00
+
+
+;-----------------------------------------------------------------------------
+
+BASIC_BUF       := $FA5E        ; Bank 1 location of command-line
+BASIC_BUF_LEN   = 162           ; Maximum length of command-line