mirror of
https://github.com/cc65/cc65.git
synced 2024-06-25 13:29:41 +00:00
Started to add lynx files contributed by Karri Kaksonen <karri@sipo.fi>
with minor modifications. git-svn-id: svn://svn.cc65.org/cc65/trunk@3222 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
parent
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244
asminc/lynx.inc
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244
asminc/lynx.inc
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; Lynx system hardware includes
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; Shawn Jefferson
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; June 18th, 2004
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;
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; Reference:
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; Bastian Schick's Lynx Documentation
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; http://www.geocities.com/SiliconValley/Byte/4242/lynx/
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;
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; ***
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; *** Suzy Addresses
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; ***
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; Sprite Control Block
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TMPADRL = $FC00
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TMPADRH = $FC01
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TILTACUML = $FC02
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TILTACUMH = $FC03
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HOFFL = $FC04
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HOFFH = $FC05
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VOFFL = $FC06
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VOFFH = $FC07
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VIDBASL = $FC08
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VIDBASH = $FC09
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COLLBASL = $FC0A
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COLLBASH = $FC0B
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VIDADRL = $FC0C
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VIDADRH = $FC0D
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COLLADRL = $FC0E
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COLLADRH = $FC0F
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SCBNEXTL = $FC10
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SCBNEXTH = $FC11
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SPRDLINEL = $FC12
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SPRDLINEH = $FC13
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HPOSSTRTL = $FC14
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HPOSSTRTH = $FC15
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VPOSSTRTL = $FC16
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VPOSSTRTH = $FC17
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SPRHSIZL = $FC18
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SPRHSIZH = $FC19
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SPRVSIZL = $FC1A
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SPRVSIZH = $FC1B
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STRETCHL = $FC1C
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STRETCHH = $FC1D
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TILTL = $FC1E
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TILTH = $FC1F
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SPRDOFFL = $FC20
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SPRDOFFH = $FC21
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SPRVPOSL = $FC22
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SPRVPOSH = $FC23
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COLLOFFL = $FC24
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COLLOFFH = $FC25
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VSIZACUML = $FC26
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VSIZACUMH = $FC27
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HSIZOFFL = $FC28
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HSIZOFFH = $FC29
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VSIZOFFL = $FC2A
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VSIZOFFH = $FC2B
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SCBADRL = $FC2C
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SCBADRH = $FC2D
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PROCADRL = $FC2E
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PROCADRH = $FC2F
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; Suzy Math
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MATHD = $FC52
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MATHC = $FC53
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MATHB = $FC54
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MATHA = $FC55
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MATHP = $FC56
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MATHN = $FC57
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MATHH = $FC60
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MATHG = $FC61
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MATHF = $FC62
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MATHE = $FC63
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MATHM = $FC6C
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MATHL = $FC6D
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MATHK = $FC6E
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MATHJ = $FC6F
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; Suzy Misc
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SPRCTL0 = $FC80
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SPRCTL1 = $FC81
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SPRCOLL = $FC82
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SPRINIT = $FC83
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SUZYHREV = $FC88
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SUZYSREV = $FC89
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SUZYBUSEN = $FC90
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SPRGO = $FC91
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SPRSYS = $FC92
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JOYSTICK = $FCB0
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SWITCHES = $FCB1
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RCART0 = $FCB2
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RCART1 = $FCB3
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LEDS = $FCC0
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PARSTATUS = $FCC2
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PARDATA = $FCC3
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HOWIE = $FCC4
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; ***
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; *** Mikey Addresses
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; ***
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; Mikey Timers
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TIMER0 = $FD00
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TIMER1 = $FD04
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TIMER2 = $FD08
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TIMER3 = $FD0C
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TIMER4 = $FD10
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TIMER5 = $FD14
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TIMER6 = $FD18
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TIMER7 = $FD1C
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HTIMER = $FD00 ; horizontal line timer (timer 0)
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VTIMER = $FD08 ; vertical blank timer (timer 2)
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HTIMBKUP = $FD00 ; horizontal line timer (timer 0)
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HTIMCTLA = $FD01
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HTIMCNT = $FD02
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HTIMCTLB = $FD03
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VTIMBKUP = $FD08 ; vertical blank timer (timer 2)
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VTIMCTLA = $FD09
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VTIMCNT = $FD0A
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VTIMCTLB = $FD0B
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BAUDBKUP = $FD10 ; serial timer (timer 4)
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TIM0BKUP = $FD00
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TIM0CTLA = $FD01
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TIM0CNT = $FD02
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TIM0CTLB = $FD03
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TIM1BKUP = $FD04
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TIM1CTLA = $FD05
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TIM1CNT = $FD06
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TIM1CTLB = $FD07
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TIM2BKUP = $FD08
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TIM2CTLA = $FD09
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TIM2CNT = $FD0A
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TIM2CTLB = $FD0B
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TIM3BKUP = $FD0C
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TIM3CTLA = $FD0D
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TIM3CNT = $FD0E
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TIM3CTLB = $FD0F
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TIM4BKUP = $FD10
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TIM4CTLA = $FD11
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TIM4CNT = $FD12
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TIM4CTLB = $FD13
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TIM5BKUP = $FD14
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TIM5CTLA = $FD15
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TIM5CNT = $FD16
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TIM5CTLB = $FD17
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TIM6BKUP = $FD18
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TIM6CTLA = $FD19
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TIM6CNT = $FD1A
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TIM6CTLB = $FD1B
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TIM7BKUP = $FD1C
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TIM7CTLA = $FD1D
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TIM7CNT = $FD1E
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TIM7CTLB = $FD1F
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; Mikey Audio
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AUDIO0 = $FD20 ; audio channel 0
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AUDIO1 = $FD28 ; audio channel 1
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AUDIO2 = $FD30 ; audio channel 2
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AUDIO3 = $FD38 ; audio channel 3
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AUD0VOL = $FD20
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AUD0FEED = $FD21
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AUD0OUT = $FD22
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AUD0SHIFT = $FD23
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AUD0BKUP = $FD24
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AUD0CTLA = $FD25
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AUD0CNT = $FD26
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AUD0CTLB = $FD27
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AUD1VOL = $FD28
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AUD1FEED = $FD29
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AUD1OUT = $FD2A
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AUD1SHIFT = $FD2B
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AUD1BKUP = $FD2C
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AUD1CTLA = $FD2D
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AUD1CNT = $FD2E
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AUD1CTLB = $FD2F
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AUD2VOL = $FD30
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AUD2FEED = $FD31
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AUD2OUT = $FD32
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AUD2SHIFT = $FD33
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AUD2BKUP = $FD34
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AUD2CTLA = $FD35
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AUD2CNT = $FD36
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AUD2CTLB = $FD37
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AUD3VOL = $FD38
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AUD3FEED = $FD39
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AUD3OUT = $FD3A
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AUD3SHIFT = $FD3B
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AUD3BKUP = $FD3C
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AUD3CTLA = $FD3D
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AUD3CNT = $FD3E
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AUD3CTLB = $FD3F
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MSTEREO = $FD50
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; Mikey Misc
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INTRST = $FD80
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INTSET = $FD81
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MAGRDY0 = $FD84
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MAGRDY1 = $FD85
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AUDIN = $FD86
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SYSCTL1 = $FD87
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MIKEYHREV = $FD88
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MIKEYSREV = $FD89
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IODIR = $FD8A
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IODAT = $FD8B
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SERCTL = $FD8C
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SERDAT = $FD8D
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SDONEACK = $FD90
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CPUSLEEP = $FD91
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DISPCTL = $FD92
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PBKUP = $FD93
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DISPADRL = $FD94
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DISPADRH = $FD95
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MTEST0 = $FD9C
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MTEST1 = $FD9D
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MTEST2 = $FD9E
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PALETTE = $FDA0 ; hardware rgb palette
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GCOLMAP = $FDA0 ; hardware rgb palette (green)
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RBCOLMAP = $FDB0 ; hardware rgb palette (red-blue)
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; ***
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; *** Misc Hardware + 6502 vectors
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; ***
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MAPCTL = $FFF9
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VECTORS = $FFFB
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INTVECTL = $FFFE
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INTVECTH = $FFFF
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RSTVECTL = $FFFC
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RSTVECTH = $FFFD
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NMIVECTL = $FFFA
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NMIVECTH = $FFFB
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5
libsrc/lynx/.cvsignore
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5
libsrc/lynx/.cvsignore
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@ -0,0 +1,5 @@
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*.emd
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*.joy
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*.mou
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*.ser
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*.tgi
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66
libsrc/lynx/Makefile
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66
libsrc/lynx/Makefile
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@ -0,0 +1,66 @@
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#
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# makefile for CC65 runtime library
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#
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.SUFFIXES: .o .s .c
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#--------------------------------------------------------------------------
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# Rules
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%.o: %.c
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@$(CC) $(CFLAGS) $<
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@$(AS) -o $@ $(AFLAGS) $(*).s
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%.o: %.s
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@$(AS) -g -o $@ $(AFLAGS) $<
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%.emd: %.o ../runtime/zeropage.o
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@$(LD) -t module -o $@ $^
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%.joy: %.o ../runtime/zeropage.o
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@$(LD) -t module -o $@ $^
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%.mou: %.o ../runtime/zeropage.o
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@$(LD) -t module -o $@ $^
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%.ser: %.o ../runtime/zeropage.o
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@$(LD) -t module -o $@ $^
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%.tgi: %.o ../runtime/zeropage.o
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@$(LD) -t module -o $@ $^
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#--------------------------------------------------------------------------
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# Object files
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OBJS = crt0.o
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#--------------------------------------------------------------------------
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# Drivers
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EMDS =
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JOYS =
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MOUS =
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SERS =
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TGIS =
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#--------------------------------------------------------------------------
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# Targets
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.PHONY: all clean zap
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all: $(OBJS) $(EMDS) $(JOYS) $(MOUS) $(SERS) $(TGIS)
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../runtime/zeropage.o:
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$(MAKE) -C $(dir $@) $(notdir $@)
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clean:
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@$(RM) $(OBJS) $(EMDS:.emd=.o) $(JOYS:.joy=.o) $(MOUS:.mou=.o) $(SERS:.ser=.o) $(TGIS:.tgi=.o)
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zap: clean
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@$(RM) $(EMDS) $(JOYS) $(MOUS) $(SERS) $(TGIS)
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163
libsrc/lynx/crt0.s
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163
libsrc/lynx/crt0.s
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@ -0,0 +1,163 @@
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; ***
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; CC65 Lynx Library
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;
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; Originally by Bastian Schick
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; http://www.geocities.com/SiliconValley/Byte/4242/lynx/
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;
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; Ported to cc65 (http://www.cc65.org) by
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; Shawn Jefferson, June 2004
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;
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; ***
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;
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; Startup code for cc65 (Lynx version). Based on Atari 8-bit startup
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; code structure. The C stack is located at the end of the RAM memory
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; segment and grows downward. Bastian Schick's executable header is put
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; on the front of the fully linked binary (see EXEHDR segment.)
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;
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; This must be the *first* file on the linker command line
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;
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.include "lynx.inc"
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.export _exit
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.exportzp __iodat,__iodir,__viddma,__sprsys
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.import initlib, donelib
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.import zerobss
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.import callmain
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.import _main
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.import __CODE_LOAD__, __BSS_LOAD__
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.import __RAM_START__, __RAM_SIZE__
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.include "zeropage.inc"
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; ------------------------------------------------------------------------
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; EXE header (BLL header)
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.segment "EXEHDR"
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.word $0880
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.byte >__CODE_LOAD__, <__CODE_LOAD__
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.byte >__BSS_LOAD__, <(__BSS_LOAD__ - 1)
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.byte $42,$53
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.byte $39,$33
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; ------------------------------------------------------------------------
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; Mikey and Suzy init data, reg offsets and data
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.rodata
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SuzyInitReg: .byte $28,$2a,$04,$06,$92,$83,$90
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SuzyInitData: .byte $7f,$7f,$00,$00,$24,$f3,$01
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MikeyInitReg: .byte $00,$01,$08,$09,$20,$28,$30,$38,$44,$50,$8a,$8b,$8c,$92,$93
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MikeyInitData: .byte $9e,$18,$68,$1f,$00,$00,$00,$00,$00,$ff,$1a,$1b,$04,$0d,$29
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; ------------------------------------------------------------------------
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; mikey and suzy shadow registers
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.segment "EXTZP" : zeropage
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__iodat: .res 1
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__iodir: .res 1
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__viddma: .res 1
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__sprsys: .res 1
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; ------------------------------------------------------------------------
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; Actual code
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.code
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; set up system
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sei
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cld
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ldx #$FF
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txs
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; init bank switching
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lda #$C
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sta MAPCTL ; $FFF9
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; disable all timer interrupts
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lda #$80
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trb TIM0CTLA
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trb TIM1CTLA
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trb TIM2CTLA
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trb TIM3CTLA
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trb TIM5CTLA
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trb TIM6CTLA
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trb TIM7CTLA
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; disable TX/RX IRQ, set to 8E1
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lda #%11101
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sta SERCTL
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; clear all pending interrupts
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lda INTSET
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sta INTRST
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; setup the stack
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lda #<(__RAM_START__ + __RAM_SIZE__)
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sta sp
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lda #>(__RAM_START__ + __RAM_SIZE__)
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sta sp+1
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; Init Mickey
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ldx #.sizeof(MikeyInitReg)-1
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mloop: ldy MikeyInitReg,x
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lda MikeyInitData,x
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sta $fd00,y
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dex
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bpl mloop
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; these are RAM-shadows of read only regs
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ldx #$1b
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stx __iodat
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dex ; $1A
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stx __iodir
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ldx #$d
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stx __viddma
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; Init Suzy
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ldx #.sizeof(SuzyInitReg)-1
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sloop: ldy SuzyInitReg,x
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lda SuzyInitData,x
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sta $fc00,y
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dex
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bpl sloop
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lda #$24
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sta __sprsys
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; Clear the BSS data
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jsr zerobss
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; Call module constructors
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jsr initlib
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; Push arguments and call main
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jsr callmain
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; Call module destructors. This is also the _exit entry.
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_exit: jsr donelib ; Run module destructors
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; Endless loop
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noret: bra noret
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