make IIc VBL consistent with IIe

src/hw.vbl.a

@@ -13,21 +13,22 @@ WaitForVBL_iie            ; IIe/IIgs have a relatively sane VBL
                           ; but it's reversed between the two
                           ; so we default to IIe, and patch in
                           ; the reverse case if it's a IIGS.
--        bit   $C019
-patch_VBL_iigs1
-         bpl   -
 patch_VBL_iic1
 -        lda   $C019      ; $c019 bit 7 is sticky, reset it (SMC->#$70 for IIc)
+patch_VBL_iigs1
 patch_VBL_iic2
+         bpl   -
+-        bit   $C019
+patch_VBL_iic3
 patch_VBL_iigs2
          bmi   -
 WaitForVBL_nop            ; II/II+ have no easy VBL
          rts
 
 iUnwaitForVBL
+         lda   $C070      ; $c019 bit 7 is sticky, reset it
 -        bit   $C019
          bpl   -
-         lda   $C070      ; $c019 bit 7 is sticky, reset it
          sta   $C07F      ; enable access to VBL register
          sta   $C05A      ; disable VBL polling
          sta   $C07E      ; disable access to VBL register

src/hw.vbl.init.a

@@ -28,10 +28,11 @@ BuildVBLFunction
 @NotGS
          rts
 @build_iic
+         sta   patch_VBL_iic2+1
          lda   #$70
          sta   patch_VBL_iic1+1
-         lda   #$60
-         sta   patch_VBL_iic2
+         lda   #$10
+         sta   patch_VBL_iic3
          lda   #<iWaitForVBL
          sta   WaitForVBL+1
          lda   #>iWaitForVBL