moved PAL/NTSC support to a separate routine

c64/kernal/init/ff5b.cint.s

@@ -11,46 +11,4 @@
 CINT:
 
 	jsr cint_legacy
-
-cint_check_pal_ntsc:
-
-	// Detect video system (PAL/NTSC), use Graham's method, as it's short and reliable
-	// see here: https://codebase64.org/doku.php?id=base:detect_pal_ntsc
-
-	lda VIC_RASTER
-!:
-	cmp VIC_RASTER
-	beq !-
-	bmi cint_check_pal_ntsc
-
-	// Result in A, if no interrupt happened during the test:
-	// #$37 -> 312 rasterlines, PAL,  VIC 6569
-	// #$06 -> 263 rasterlines, NTSC, VIC 6567R8
-	// #$05 -> 262 rasterlines, NTSC, VIC 6567R56A
-
-	cmp #$07
-	bcc cont_done
-
-cint_pal:
-
-	// (This value was calculated by running a custom IRQ handler on a C64
-	// with original KERNAL, and writing the values of $DC04/5 to the screen
-	// in the IRQ handler to see roughly what value the timers must be set to)
-	// ldy #<16380
-	// ldx #>16380
-
-	// PAL C64 (https://codebase64.org/doku.php?id=base:cpu_clocking),
-	// is clocked at 0.985248 MHz, so that 1/60s is 16421 CPU cycles
-
-	ldy #<16421
-	ldx #>16421
-
-	sty CIA1_TIMALO
-	stx CIA1_TIMAHI
-
-	lda #$01
-!:
-	sta TVSFLG
-
-cont_done:
-	rts
+	jmp setup_pal_ntsc