adapted to Kick Assembler, some documentation update

c64/kernal/interrupts/irq_handler.s

@@ -1,38 +1,38 @@
 
 irq_handler:
-	;; The IRQ is a commonly messed with thing on the C64,
-	;; so we need to handle entry points that are commonly
-	;; relied upon, including:
-	;; $EA31 - Standard IRQ routine
-	;; $EA61 - Check keyboard, but don't update timer? https://github.com/cc65/cc65/issues/324
-	;; $EA81 - https://www.lemon64.com/forum/viewtopic.php?t=2112&sid=6ea01982b26da69783120a7923ca46fb
-	;; Also the $0314 vector is widely used (e.g., https://www.lemon64.com/forum/viewtopic.php?t=2112&sid=6ea01982b26da69783120a7923ca46fb)
+	// The IRQ is a commonly messed with thing on the C64,
+	// so we need to handle entry points that are commonly
+	// relied upon, including:
+	// $EA31 - Standard IRQ routine
+	// $EA61 - Check keyboard, but don't update timer? https://github.com/cc65/cc65/issues/324
+	// $EA81 - https://www.lemon64.com/forum/viewtopic.php?t=2112&sid=6ea01982b26da69783120a7923ca46fb
+	// Also the $0314 vector is widely used (e.g., https://www.lemon64.com/forum/viewtopic.php?t=2112&sid=6ea01982b26da69783120a7923ca46fb)
 
-	;; Save registers, sequence according to Compute's Mapping the Commodore 64, page 73
+	// Save registers, sequence according to Compute's Mapping the Commodore 64, page 73
 	pha
 	txa
 	pha
 	tya
 	pha
 
-	;; Check if caused by BRK
+	// Check if caused by BRK
 	tsx
-	lda $0104, x ; get the pre-interrupt processor state
+	lda $0104, x // get the pre-interrupt processor state
 	and #$10
 	bne irq_handler_brk
 
-	;; Not caused by BRK - call interrupt routine (only if initialised)
+	// Not caused by BRK - call interrupt routine (only if initialised)
 	lda CINV
 	ora CINV+1
-	beq +
+	beq !+
 	jmp (CINV)
-*
-	;; Vector not initialized - call default interrupt routine
+!:
+	// Vector not initialized - call default interrupt routine
 	jmp default_irq_handler
 
 irq_handler_brk:
 
-	;; Store BRK adddress, to be displayed
+	// Store BRK adddress, to be displayed
 	sec
 	lda $0105, x
 	sbc #$02
@@ -41,6 +41,6 @@ irq_handler_brk:
 	sbc #$00
 	sta CMP0+1
 
-	;; Interrupt caused by BRK
+	// Interrupt caused by BRK
 	jmp (CBINV)