]> git.sur5r.net Git - cc65/blobdiff - libsrc/joystick/joy-kernel.s
Revert "atari5200: fix COLOR defines' names"
[cc65] / libsrc / joystick / joy-kernel.s
index 2b1dcf884158f8d34870bacd7737e14137359096..c2d50c8d8b529f7e74b6973f1d9a8f7716851d6b 100644 (file)
@@ -6,7 +6,6 @@
 
         .import         joy_libref
         .importzp       ptr1
-        .interruptor    joy_irq         ; Export as IRQ handler
 
         .include        "joy-kernel.inc"
         .include        "joy-error.inc"
@@ -19,8 +18,6 @@
 .bss
 _joy_drv:       .res    2               ; Pointer to driver
 
-_joy_masks:     .res    .sizeof(JOY_HDR::MASKS)
-
 ; Jump table for the driver functions.
 .data
 joy_vectors:
@@ -28,7 +25,6 @@ joy_install:    jmp     $0000
 joy_uninstall:  jmp     $0000
 joy_count:      jmp     $0000
 joy_read:       jmp     $0000
-joy_irq:        .byte   $60, $00, $00   ; RTS plus two dummy bytes
 
 ; Driver header signature
 .rodata
@@ -65,38 +61,17 @@ _joy_install:
         lda     #>joy_libref
         sta     (ptr1),y
 
-; Copy the mask array
-
-        ldy     #JOY_HDR::MASKS + .sizeof(JOY_HDR::MASKS) - 1
-        ldx     #.sizeof(JOY_HDR::MASKS)-1
-@L1:    lda     (ptr1),y
-        sta     _joy_masks,x
-        dey
-        dex
-        bpl     @L1
-
 ; Copy the jump vectors
 
         ldy     #JOY_HDR::JUMPTAB
         ldx     #0
-@L2:    inx                             ; Skip the JMP opcode
+@L1:    inx                             ; Skip the JMP opcode
         jsr     copy                    ; Copy one byte
         jsr     copy                    ; Copy one byte
         cpy     #(JOY_HDR::JUMPTAB + .sizeof(JOY_HDR::JUMPTAB))
-        bne     @L2
+        bne     @L1
 
-        jsr     joy_install             ; Call driver install routine
-        tay                             ; Test error code
-        bne     @L3                     ; Bail out if install had errors
-
-; Install the IRQ vector if the driver needs it. A/X contains the error code
-; from joy_install, so don't use it.
-
-        ldy     joy_irq+2               ; Check high byte of IRQ vector
-        beq     @L3                     ; Jump if vector invalid
-        ldy     #$4C                    ; JMP opcode
-        sty     joy_irq                 ; Activate IRQ routine
-@L3:    rts
+        jmp     joy_install             ; Call driver install routine
 
 ; Driver signature invalid
 
@@ -120,9 +95,6 @@ copy:   lda     (ptr1),y
 ; */
 
 _joy_uninstall:
-        lda     #$60                    ; RTS opcode
-        sta     joy_irq                 ; Disable IRQ entry point
-
         jsr     joy_uninstall           ; Call the driver routine
 
 _joy_clear_ptr:                         ; External entry point