From: cuz Date: Fri, 8 Oct 2004 18:14:19 +0000 (+0000) Subject: Started to add lynx files contributed by Karri Kaksonen X-Git-Tag: V2.12.0~613 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=9994e60b49de61ef5bd994ad42f53ecea5e68f4f;p=cc65 Started to add lynx files contributed by Karri Kaksonen with minor modifications. git-svn-id: svn://svn.cc65.org/cc65/trunk@3222 b7a2c559-68d2-44c3-8de9-860c34a00d81 --- diff --git a/asminc/lynx.inc b/asminc/lynx.inc new file mode 100644 index 000000000..19ddef8ac --- /dev/null +++ b/asminc/lynx.inc @@ -0,0 +1,244 @@ +; Lynx system hardware includes +; Shawn Jefferson +; June 18th, 2004 +; +; Reference: +; Bastian Schick's Lynx Documentation +; http://www.geocities.com/SiliconValley/Byte/4242/lynx/ +; + +; *** +; *** Suzy Addresses +; *** + +; Sprite Control Block + +TMPADRL = $FC00 +TMPADRH = $FC01 +TILTACUML = $FC02 +TILTACUMH = $FC03 +HOFFL = $FC04 +HOFFH = $FC05 +VOFFL = $FC06 +VOFFH = $FC07 +VIDBASL = $FC08 +VIDBASH = $FC09 +COLLBASL = $FC0A +COLLBASH = $FC0B +VIDADRL = $FC0C +VIDADRH = $FC0D +COLLADRL = $FC0E +COLLADRH = $FC0F +SCBNEXTL = $FC10 +SCBNEXTH = $FC11 +SPRDLINEL = $FC12 +SPRDLINEH = $FC13 +HPOSSTRTL = $FC14 +HPOSSTRTH = $FC15 +VPOSSTRTL = $FC16 +VPOSSTRTH = $FC17 +SPRHSIZL = $FC18 +SPRHSIZH = $FC19 +SPRVSIZL = $FC1A +SPRVSIZH = $FC1B +STRETCHL = $FC1C +STRETCHH = $FC1D +TILTL = $FC1E +TILTH = $FC1F +SPRDOFFL = $FC20 +SPRDOFFH = $FC21 +SPRVPOSL = $FC22 +SPRVPOSH = $FC23 +COLLOFFL = $FC24 +COLLOFFH = $FC25 +VSIZACUML = $FC26 +VSIZACUMH = $FC27 +HSIZOFFL = $FC28 +HSIZOFFH = $FC29 +VSIZOFFL = $FC2A +VSIZOFFH = $FC2B +SCBADRL = $FC2C +SCBADRH = $FC2D +PROCADRL = $FC2E +PROCADRH = $FC2F + +; Suzy Math + +MATHD = $FC52 +MATHC = $FC53 +MATHB = $FC54 +MATHA = $FC55 +MATHP = $FC56 +MATHN = $FC57 +MATHH = $FC60 +MATHG = $FC61 +MATHF = $FC62 +MATHE = $FC63 +MATHM = $FC6C +MATHL = $FC6D +MATHK = $FC6E +MATHJ = $FC6F + +; Suzy Misc + +SPRCTL0 = $FC80 +SPRCTL1 = $FC81 +SPRCOLL = $FC82 +SPRINIT = $FC83 +SUZYHREV = $FC88 +SUZYSREV = $FC89 +SUZYBUSEN = $FC90 +SPRGO = $FC91 +SPRSYS = $FC92 +JOYSTICK = $FCB0 +SWITCHES = $FCB1 +RCART0 = $FCB2 +RCART1 = $FCB3 +LEDS = $FCC0 +PARSTATUS = $FCC2 +PARDATA = $FCC3 +HOWIE = $FCC4 + + +; *** +; *** Mikey Addresses +; *** + +; Mikey Timers + +TIMER0 = $FD00 +TIMER1 = $FD04 +TIMER2 = $FD08 +TIMER3 = $FD0C +TIMER4 = $FD10 +TIMER5 = $FD14 +TIMER6 = $FD18 +TIMER7 = $FD1C +HTIMER = $FD00 ; horizontal line timer (timer 0) +VTIMER = $FD08 ; vertical blank timer (timer 2) + +HTIMBKUP = $FD00 ; horizontal line timer (timer 0) +HTIMCTLA = $FD01 +HTIMCNT = $FD02 +HTIMCTLB = $FD03 +VTIMBKUP = $FD08 ; vertical blank timer (timer 2) +VTIMCTLA = $FD09 +VTIMCNT = $FD0A +VTIMCTLB = $FD0B +BAUDBKUP = $FD10 ; serial timer (timer 4) + +TIM0BKUP = $FD00 +TIM0CTLA = $FD01 +TIM0CNT = $FD02 +TIM0CTLB = $FD03 +TIM1BKUP = $FD04 +TIM1CTLA = $FD05 +TIM1CNT = $FD06 +TIM1CTLB = $FD07 +TIM2BKUP = $FD08 +TIM2CTLA = $FD09 +TIM2CNT = $FD0A +TIM2CTLB = $FD0B +TIM3BKUP = $FD0C +TIM3CTLA = $FD0D +TIM3CNT = $FD0E +TIM3CTLB = $FD0F +TIM4BKUP = $FD10 +TIM4CTLA = $FD11 +TIM4CNT = $FD12 +TIM4CTLB = $FD13 +TIM5BKUP = $FD14 +TIM5CTLA = $FD15 +TIM5CNT = $FD16 +TIM5CTLB = $FD17 +TIM6BKUP = $FD18 +TIM6CTLA = $FD19 +TIM6CNT = $FD1A +TIM6CTLB = $FD1B +TIM7BKUP = $FD1C +TIM7CTLA = $FD1D +TIM7CNT = $FD1E +TIM7CTLB = $FD1F + +; Mikey Audio + +AUDIO0 = $FD20 ; audio channel 0 +AUDIO1 = $FD28 ; audio channel 1 +AUDIO2 = $FD30 ; audio channel 2 +AUDIO3 = $FD38 ; audio channel 3 + +AUD0VOL = $FD20 +AUD0FEED = $FD21 +AUD0OUT = $FD22 +AUD0SHIFT = $FD23 +AUD0BKUP = $FD24 +AUD0CTLA = $FD25 +AUD0CNT = $FD26 +AUD0CTLB = $FD27 +AUD1VOL = $FD28 +AUD1FEED = $FD29 +AUD1OUT = $FD2A +AUD1SHIFT = $FD2B +AUD1BKUP = $FD2C +AUD1CTLA = $FD2D +AUD1CNT = $FD2E +AUD1CTLB = $FD2F +AUD2VOL = $FD30 +AUD2FEED = $FD31 +AUD2OUT = $FD32 +AUD2SHIFT = $FD33 +AUD2BKUP = $FD34 +AUD2CTLA = $FD35 +AUD2CNT = $FD36 +AUD2CTLB = $FD37 +AUD3VOL = $FD38 +AUD3FEED = $FD39 +AUD3OUT = $FD3A +AUD3SHIFT = $FD3B +AUD3BKUP = $FD3C +AUD3CTLA = $FD3D +AUD3CNT = $FD3E +AUD3CTLB = $FD3F +MSTEREO = $FD50 + +; Mikey Misc + +INTRST = $FD80 +INTSET = $FD81 +MAGRDY0 = $FD84 +MAGRDY1 = $FD85 +AUDIN = $FD86 +SYSCTL1 = $FD87 +MIKEYHREV = $FD88 +MIKEYSREV = $FD89 +IODIR = $FD8A +IODAT = $FD8B +SERCTL = $FD8C +SERDAT = $FD8D +SDONEACK = $FD90 +CPUSLEEP = $FD91 +DISPCTL = $FD92 +PBKUP = $FD93 +DISPADRL = $FD94 +DISPADRH = $FD95 +MTEST0 = $FD9C +MTEST1 = $FD9D +MTEST2 = $FD9E +PALETTE = $FDA0 ; hardware rgb palette +GCOLMAP = $FDA0 ; hardware rgb palette (green) +RBCOLMAP = $FDB0 ; hardware rgb palette (red-blue) + + +; *** +; *** Misc Hardware + 6502 vectors +; *** + +MAPCTL = $FFF9 +VECTORS = $FFFB +INTVECTL = $FFFE +INTVECTH = $FFFF +RSTVECTL = $FFFC +RSTVECTH = $FFFD +NMIVECTL = $FFFA +NMIVECTH = $FFFB + diff --git a/libsrc/lynx/.cvsignore b/libsrc/lynx/.cvsignore new file mode 100644 index 000000000..3eecd7b49 --- /dev/null +++ b/libsrc/lynx/.cvsignore @@ -0,0 +1,5 @@ +*.emd +*.joy +*.mou +*.ser +*.tgi diff --git a/libsrc/lynx/Makefile b/libsrc/lynx/Makefile new file mode 100644 index 000000000..c39c75b2c --- /dev/null +++ b/libsrc/lynx/Makefile @@ -0,0 +1,66 @@ +# +# makefile for CC65 runtime library +# + +.SUFFIXES: .o .s .c + + +#-------------------------------------------------------------------------- +# Rules + +%.o: %.c + @$(CC) $(CFLAGS) $< + @$(AS) -o $@ $(AFLAGS) $(*).s + +%.o: %.s + @$(AS) -g -o $@ $(AFLAGS) $< + +%.emd: %.o ../runtime/zeropage.o + @$(LD) -t module -o $@ $^ + +%.joy: %.o ../runtime/zeropage.o + @$(LD) -t module -o $@ $^ + +%.mou: %.o ../runtime/zeropage.o + @$(LD) -t module -o $@ $^ + +%.ser: %.o ../runtime/zeropage.o + @$(LD) -t module -o $@ $^ + +%.tgi: %.o ../runtime/zeropage.o + @$(LD) -t module -o $@ $^ + +#-------------------------------------------------------------------------- +# Object files + +OBJS = crt0.o + +#-------------------------------------------------------------------------- +# Drivers + +EMDS = + +JOYS = + +MOUS = + +SERS = + +TGIS = + +#-------------------------------------------------------------------------- +# Targets + +.PHONY: all clean zap + +all: $(OBJS) $(EMDS) $(JOYS) $(MOUS) $(SERS) $(TGIS) + +../runtime/zeropage.o: + $(MAKE) -C $(dir $@) $(notdir $@) + +clean: + @$(RM) $(OBJS) $(EMDS:.emd=.o) $(JOYS:.joy=.o) $(MOUS:.mou=.o) $(SERS:.ser=.o) $(TGIS:.tgi=.o) + +zap: clean + @$(RM) $(EMDS) $(JOYS) $(MOUS) $(SERS) $(TGIS) + diff --git a/libsrc/lynx/crt0.s b/libsrc/lynx/crt0.s new file mode 100644 index 000000000..7542e2112 --- /dev/null +++ b/libsrc/lynx/crt0.s @@ -0,0 +1,163 @@ +; *** +; CC65 Lynx Library +; +; Originally by Bastian Schick +; http://www.geocities.com/SiliconValley/Byte/4242/lynx/ +; +; Ported to cc65 (http://www.cc65.org) by +; Shawn Jefferson, June 2004 +; +; *** +; +; Startup code for cc65 (Lynx version). Based on Atari 8-bit startup +; code structure. The C stack is located at the end of the RAM memory +; segment and grows downward. Bastian Schick's executable header is put +; on the front of the fully linked binary (see EXEHDR segment.) +; +; This must be the *first* file on the linker command line +; + + .include "lynx.inc" + .export _exit + .exportzp __iodat,__iodir,__viddma,__sprsys + + .import initlib, donelib + .import zerobss + .import callmain + .import _main + .import __CODE_LOAD__, __BSS_LOAD__ + .import __RAM_START__, __RAM_SIZE__ + + .include "zeropage.inc" + + +; ------------------------------------------------------------------------ +; EXE header (BLL header) + + .segment "EXEHDR" + .word $0880 + .byte >__CODE_LOAD__, <__CODE_LOAD__ + .byte >__BSS_LOAD__, <(__BSS_LOAD__ - 1) + .byte $42,$53 + .byte $39,$33 + + +; ------------------------------------------------------------------------ +; Mikey and Suzy init data, reg offsets and data + + .rodata + +SuzyInitReg: .byte $28,$2a,$04,$06,$92,$83,$90 +SuzyInitData: .byte $7f,$7f,$00,$00,$24,$f3,$01 + +MikeyInitReg: .byte $00,$01,$08,$09,$20,$28,$30,$38,$44,$50,$8a,$8b,$8c,$92,$93 +MikeyInitData: .byte $9e,$18,$68,$1f,$00,$00,$00,$00,$00,$ff,$1a,$1b,$04,$0d,$29 + + +; ------------------------------------------------------------------------ +; mikey and suzy shadow registers + + .segment "EXTZP" : zeropage + +__iodat: .res 1 +__iodir: .res 1 +__viddma: .res 1 +__sprsys: .res 1 + + +; ------------------------------------------------------------------------ +; Actual code + + .code + +; set up system + + sei + cld + ldx #$FF + txs + +; init bank switching + + lda #$C + sta MAPCTL ; $FFF9 + +; disable all timer interrupts + + lda #$80 + trb TIM0CTLA + trb TIM1CTLA + trb TIM2CTLA + trb TIM3CTLA + trb TIM5CTLA + trb TIM6CTLA + trb TIM7CTLA + +; disable TX/RX IRQ, set to 8E1 + + lda #%11101 + sta SERCTL + +; clear all pending interrupts + + lda INTSET + sta INTRST + +; setup the stack + + lda #<(__RAM_START__ + __RAM_SIZE__) + sta sp + lda #>(__RAM_START__ + __RAM_SIZE__) + sta sp+1 + +; Init Mickey + + ldx #.sizeof(MikeyInitReg)-1 +mloop: ldy MikeyInitReg,x + lda MikeyInitData,x + sta $fd00,y + dex + bpl mloop + +; these are RAM-shadows of read only regs + + ldx #$1b + stx __iodat + dex ; $1A + stx __iodir + ldx #$d + stx __viddma + +; Init Suzy + + ldx #.sizeof(SuzyInitReg)-1 +sloop: ldy SuzyInitReg,x + lda SuzyInitData,x + sta $fc00,y + dex + bpl sloop + + lda #$24 + sta __sprsys + +; Clear the BSS data + + jsr zerobss + +; Call module constructors + + jsr initlib + +; Push arguments and call main + + jsr callmain + +; Call module destructors. This is also the _exit entry. + +_exit: jsr donelib ; Run module destructors + +; Endless loop + +noret: bra noret + +