Merge pull request #176 from yenatch/interrupts

finally give labels to interrupts

engine/vblank.asm

@@ -26,7 +26,7 @@
 	ld l, a
 	
 ; down to business
-	call JpHl
+	call _hl_
 	
 ; since this is called once per frame
 	call GameTimer

gbhw.asm

@@ -21,15 +21,29 @@ RTC_DH EQU $0c ; Upper 1 bit of Day Counter, Carry Bit, Halt Flag
         ; Bit 6  Halt (0=Active, 1=Stop Timer)
         ; Bit 7  Day Counter Carry Bit (1=Counter Overflow)
 
+; interrupt flags
+VBLANK   EQU 0
+LCD_STAT EQU 1
+TIMER    EQU 2
+SERIAL   EQU 3
+JOYPAD   EQU 4
 
 ; Hardware registers
 rJOYP       EQU $ff00 ; Joypad (R/W)
 rSB         EQU $ff01 ; Serial transfer data (R/W)
 rSC         EQU $ff02 ; Serial Transfer Control (R/W)
+rSC_ON    EQU 7
+rSC_CGB   EQU 1
+rSC_CLOCK EQU 0
 rDIV        EQU $ff04 ; Divider Register (R/W)
 rTIMA       EQU $ff05 ; Timer counter (R/W)
 rTMA        EQU $ff06 ; Timer Modulo (R/W)
 rTAC        EQU $ff07 ; Timer Control (R/W)
+rTAC_ON        EQU 2
+rTAC_4096_HZ   EQU 0
+rTAC_262144_HZ EQU 1
+rTAC_65536_HZ  EQU 2 
+rTAC_16384_HZ  EQU 3
 rIF         EQU $ff0f ; Interrupt Flag (R/W)
 rNR10       EQU $ff10 ; Channel 1 Sweep register (R/W)
 rNR11       EQU $ff11 ; Channel 1 Sound length/Wave pattern duty (R/W)

hram.asm

@@ -41,6 +41,9 @@ hMathBuffer        EQU $ffb8
 
 hLCDStatCustom     EQU $ffc6
 
+hSerialSend        EQU $ffcd
+hSerialReceive     EQU $ffce
+
 hSCX               EQU $ffcf
 hSCY               EQU $ffd0
 hWX                EQU $ffd1

wram.asm

@@ -2098,15 +2098,18 @@ RoamMon3DVs: ; dfe2
 SECTION "WRAMBank5",WRAMX[$d000],BANK[5]
 
 ; 8 4-color palettes
-Unkn1Pals:
+Unkn1Pals: ; d000
 	ds $40
-Unkn2Pals:
+Unkn2Pals: ; d040
 	ds $40
-BGPals:
+BGPals: ; d080
 	ds $40
-OBPals:
+OBPals: ; d0c0
 	ds $40
 
+LYOverrides: ; d100
+	ds 144
+LYOverridesEnd
 
 
 SECTION "SRAMBank1",SRAM,BANK[1]