Revert "Added basic frame for new target 'creativision'."

This reverts commit 8e6b8dd0af.
2013-12-05 21:45:20 +01:00
parent b5ed9a1eff
commit 0a8efc9fc3
7 changed files with 59 additions and 208 deletions
--- a/libsrc/creativision/crt0.s
+++ b/libsrc/creativision/crt0.s
@@ -1,102 +0,0 @@
-;
-; Startup code for cc65 (CreatiVision version)
-;
-
-        .export         _exit
-        .export         __STARTUP__ : absolute = 1      ; Mark as startup
-        .import         zerobss, copydata
-        .import         initlib, donelib, callmain
-        .import         __VECTORS_LOAD__, __VECTORS_RUN__, __VECTORS_SIZE__
-        .import         __ZP_LAST__, __STACKSIZE__, __RAM_START__
-
-        .include        "zeropage.inc"
-
-; ------------------------------------------------------------------------
-
-entry:
-        ; Init the CPU
-        sei
-        cld
-
-        ; Copy the IRQ vectors
-        ldx     #<__VECTORS_SIZE__ - 1
-:       lda     __VECTORS_LOAD__,x
-        sta     __VECTORS_RUN__,x
-        dex
-        bpl     :-
-
-        ; Setup the CPU stack ptr
-        ldx     #<__RAM_START__ - 1
-        txs
-
-        ; Start interrupts
-        cli
-
-        ; Clear the BSS data
-        jsr     zerobss
-
-        ; Copy data from ROM to RAM
-        jsr     copydata
-
-        ; Setup the argument stack ptr
-        lda     #<(__ZP_LAST__ + __STACKSIZE__)
-        ldx     #>(__ZP_LAST__ + __STACKSIZE__)
-        sta     sp
-        stx     sp+1
-
-        ; Call module constructors
-        jsr     initlib
-
-        ; Call main()
-        jsr     callmain
-
-        ; Call module destructors. This is also the _exit entry.
-_exit:  jsr     donelib
-
-        ; TODO: Replace with some sort of reset
-loop:   jmp loop
-
-; ------------------------------------------------------------------------
-; Define the IRQ vectors.
-
-.segment        "VECTORS"
-
-irq1:   jmp     $FF3F
-irq2:   jmp     $FF52
-
-; ------------------------------------------------------------------------
-; Define CART setup values for BIOS.
-
-.segment        "SETUP"
-
-        ; BIOS Jump Start
-        ; This is where the entry point of the program needs to be
-        .addr   entry
-        .addr   irq2
-
-        .res    4
-
-        ; VDP Setup
-        ; This sets to Graphics Mode 1
-        .byte   $00             ; Register 0
-        .byte   $C0             ; Register 1 16K RAM, Active Display, Mode 1
-        .byte   $04             ; Register 2 Name Table at $1000 - $12FF
-        .byte   $60             ; Register 3 Colour Table at $1800 - $181F
-        .byte   $00             ; Register 4 Pattern Table at $0000 - $07FF
-        .byte   $10             ; Register 5 Sprite Attribute at $0800 - $087F
-        .byte   $01             ; Register 6 Sprite Pattern
-        .byte   $F1             ; Register 7 Text colour Foreground / background
-
-        .res    4
-
-        ; BIOS Vector after NMI or RESET
-        ; Keeping with retail cartridges, we jump back to BIOS ROM and have it
-        ; setup zeropage etc, and show the Creativision logo and copyright.
-        .addr $F808
-
-        ; BIOS Short Interrupt Handler
-        ; Vectored from BIOS ROM:FE2C. This should contain a pointer to the user's
-        ; BIOS interrupt handler.
-        .addr irq1
-
-; ------------------------------------------------------------------------