fixed VECTOR defaults location, needed by GEOS

STATUS.md

@@ -98,8 +98,8 @@ NOTE: Even the 'DONE' routines won't support features described as missing in on
 | `$FF81`   | `$FF5B`    | `CINT`      | DONE     |                                                    |
 | `$FF84`   | `$FDA3`    | `IOINIT`    | PARTIAL  | CIA initialization incomplete                      |
 | `$FF87`   | `$FD50`    | `RAMTAS`    | DONE     |                                                    |
-| `$FF8A`   |            | `RESTOR`    | DONE     |                                                    |
-| `$FF8D`   | `$FD15`    | `VECTOR`    | PARTIAL  | wrong address, code starts from RESTOR             |
+| `$FF8A`   | `$FD15`    | `RESTOR`    | DONE     |                                                    |
+| `$FF8D`   | `$FD1A`    | `VECTOR`    | DONE     |                                                    |
 | `$FF90`   |            | `SETMSG`    | DONE     |                                                    |
 | `$FF93`   |            | `SECOND`    | DONE     |                                                    |
 | `$FF96`   |            | `TKSA`      | DONE     |                                                    |
@@ -153,6 +153,7 @@ Not all of them - only these we want to have implemented.
 | `$EA31`   | default IRQ      | PARTIAL  |                                                    |
 | `$EA7E`   | ack CIA1 + below | DONE     |                                                    |
 | `$EA81`   | ret from IRQ/NMI | DONE     |                                                    |
+| `$FD30`   | default vectors  | DONE     |                                                    |
 | `$FE47`   | default NMI      | PARTIAL  |                                                    |
 | `$FE66`   | default BRK      | DONE     |                                                    |
 | `$FF80`   | revision byte    | DONE     |                                                    |

c64/kernal/fd15.restor.s

@@ -0,0 +1,24 @@
+
+//
+// Official Kernal routine, described in:
+//
+// - [RG64] C64 Programmer's Reference Guide   - page 293 (RESTOR), 304 (VECTOR)
+// - [CM64] Compute's Mapping the Commodore 64 - page 237
+//
+// CPU registers that has to be preserved (see [RG64]): none
+//
+
+RESTOR:
+
+	clc // clear carry - for writing to system table
+	ldx #<vector_defaults
+	ldy #>vector_defaults
+
+	// FALLTHROUGH
+
+VECTOR:
+
+// Our implementation is longer than the original one,
+// placing it here would cause a collision with VECTOR defaults
+
+	jmp vector_real

c64/kernal/fd30.interop

@@ -0,0 +1,3 @@
+Location of the default Kernal vector values, described in Compute's Mapping the Commodore 64, page 237
+
+It is referenced by GEOS - see https://github.com/mist64/geos/blob/master/inc/c64.inc

c64/kernal/vector_real.s

@@ -1,22 +1,5 @@
 
-//
-// Official Kernal routine, described in:
-//
-// - [RG64] C64 Programmer's Reference Guide   - page 293 (RESTOR), 304 (VECTOR)
-// - [CM64] Compute's Mapping the Commodore 64 - page 237
-//
-// CPU registers that has to be preserved (see [RG64]): none
-//
-
-RESTOR:
-
-	clc // clear carry - for writing to system table
-	ldx #<vector_defaults
-	ldy #>vector_defaults
-
-	// FALLTHROUGH
-
-VECTOR:
+vector_real:
 
 	// Temporary storage location - checked on real C64 that this is the
 	// address originally used; after calling VECTOR and checking zero page
@@ -41,17 +24,10 @@ VECTOR:
 	ldy #$1F
 	bcc vector_restore
 	
-	// FALLTHROUGH
-	
-vector_store:
 	lda CINV, y
 	sta (_caller_arr_ptr), y
-	dey
-	bpl vector_store
-	
-	// Restore status register (IRQ) before return
-	plp
-	rts
+
+	// FALLTHROUGH
 	
 vector_restore:
 	lda (_caller_arr_ptr), y