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Stream Tutorial 5 - Screen Smooth Scrolling
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| //=============================================================================== | ||
| // $00-$FF PAGE .label Zero (256 bytes) | ||
| // $00-$01 Reserved for IO | ||
| .label ZeroPageTemp = $02 | ||
| // $03-$8F Reserved for BASIC | ||
| // using $73-$8A CHRGET as BASIC not used for our game | ||
| .label ZeroPageParam1 = $73 | ||
| .label ZeroPageParam2 = $74 | ||
| .label ZeroPageParam3 = $75 | ||
| .label ZeroPageParam4 = $76 | ||
| .label ZeroPageParam5 = $77 | ||
| .label ZeroPageParam6 = $78 | ||
| .label ZeroPageParam7 = $79 | ||
| .label ZeroPageParam8 = $7A | ||
| .label ZeroPageParam9 = $7B | ||
| // $90-$FA Reserved for Kernal | ||
| .label ZeroPageLow = $45 | ||
| .label ZeroPageHigh = $46 | ||
| .label ZeroPageLow2 = $47 | ||
| .label ZeroPageHigh2 = $48 | ||
| // $FF Reserved for Kernal | ||
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| //=============================================================================== | ||
| // $0200-$9FFF RAM (40K) | ||
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| .label SCREENRAM = $4000 | ||
| .label SPRITE0 = $43F8 | ||
| .label COLOURRAM = $d800 | ||
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| // $0801 | ||
| // Game code is placed here by using the *=$0801 directive | ||
| // in gameMain.asm | ||
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| // 192 decimal * 64(sprite size) = 10880(hex $2A80) | ||
| .label SPRITERAM = 170 | ||
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| //=============================================================================== | ||
| // $D000-$DFFF IO (4K) | ||
|
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| // These are some of the C64 registers that are mapped into | ||
| // IO memory space | ||
| // Names taken from 'Mapping the Commodore 64' book | ||
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| .label SP0X = $D000 | ||
| .label SP0Y = $D001 | ||
| .label MSIGX = $D010 | ||
| .label SCROLY = $D011 | ||
| .label RASTER = $D012 | ||
| .label SPENA = $D015 | ||
| .label SCROLX = $D016 | ||
| .label YXPAND = $D017 | ||
| .label VMCSB = $D018 | ||
| .label VICIRQ = $D019 | ||
| .label SPBGPR = $D01B | ||
| .label SPMC = $D01C | ||
| .label XXPAND = $D01D | ||
| .label SPSPCL = $D01E | ||
| .label SPBGCL = $D01F | ||
| .label EXTCOL = $D020 | ||
| .label BGCOL0 = $D021 | ||
| .label BGCOL1 = $D022 | ||
| .label BGCOL2 = $D023 | ||
| .label BGCOL3 = $D024 | ||
| .label SPMC0 = $D025 | ||
| .label SPMC1 = $D026 | ||
| .label SP0COL = $D027 | ||
| .label FRELO1 = $D400 //(54272) | ||
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| .label FREHI1 = $D401 //(54273) | ||
| .label PWLO1 = $D402 //(54274) | ||
| .label PWHI1 = $D403 //(54275) | ||
| .label VCREG1 = $D404 //(54276) | ||
| .label ATDCY1 = $D405 //(54277) | ||
| .label SUREL1 = $D406 //(54278) | ||
| .label FRELO2 = $D407 //(54279) | ||
| .label FREHI2 = $D408 //(54280) | ||
| .label PWLO2 = $D409 //(54281) | ||
| .label PWHI2 = $D40A //(54282) | ||
| .label VCREG2 = $D40B //(54283) | ||
| .label ATDCY2 = $D40C //(54284) | ||
| .label SUREL2 = $D40D //(54285) | ||
| .label FRELO3 = $D40E //(54286) | ||
| .label FREHI3 = $D40F //(54287) | ||
| .label PWLO3 = $D410 //(54288) | ||
| .label PWHI3 = $D411 //(54289) | ||
| .label VCREG3 = $D412 //(54290) | ||
| .label ATDCY3 = $D413 //(54291) | ||
| .label SUREL3 = $D414 //(54292) | ||
| .label SIGVOL = $D418 //(54296) | ||
| .label CIAPRA = $DC00 | ||
| .label CIAPRB = $DC01 | ||
|
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| // Kernel Jump Vectors | ||
| .label krljmp_PCINT = $FF81 | ||
| .label krljmp_IOINIT = $FF84 | ||
| .label krljmp_RAMTAS = $FF87 | ||
| .label krljmp_RESTOR = $FF8A | ||
| .label krljmp_VECTOR = $FF8D | ||
| .label krljmp_SETMSG = $FF90 | ||
| .label krljmp_SECOND = $FF93 | ||
| .label krljmp_TKSA = $FF96 | ||
| .label krljmp_MEMTOP = $FF99 | ||
| .label krljmp_MEMBOT = $FF9C | ||
| .label krljmp_SCNKEY = $FF9F | ||
| .label krljmp_SETTMO = $FFA2 | ||
| .label krljmp_ACPTR = $FFA5 | ||
| .label krljmp_CIOUT = $FFA8 | ||
| .label krljmp_UNTALK = $FFAB | ||
| .label krljmp_UNLSN = $FFAE | ||
| .label krljmp_LISTEN = $FFB1 | ||
| .label krljmp_TALK = $FFB4 | ||
| .label krljmp_READST = $FFB7 | ||
| .label krljmp_SETLFS = $FFBA | ||
| .label krljmp_SETNAM = $FFBD | ||
| .label krljmp_OPEN = $FFC0 | ||
| .label krljmp_CLOSE = $FFC3 | ||
| .label krljmp_CHKIN = $FFC6 | ||
| .label krljmp_CHKOUT = $FFC9 | ||
| .label krljmp_CLRCHN = $FFCC | ||
| .label krljmp_CHRIN = $FFCF | ||
| .label krljmp_CHROUT = $FFD2 | ||
| .label krljmp_LOAD = $FFD5 | ||
| .label krljmp_SAVE = $FFD8 | ||
| .label krljmp_SETTIM = $FFDB | ||
| .label krljmp_RDTIM = $FFDE | ||
| .label krljmp_STOP = $FFE1 | ||
| .label krljmp_GETIN = $FFE4 | ||
| .label krljmp_CLALL = $FFE7 | ||
| .label krljmp_UDTIM = $FFEA | ||
| .label krljmp_SCREEN = $FFED | ||
| .label krljmp_PLOT = $FFF0 | ||
| .label krljmp_BASE = $FFF3 | ||
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| .label krljmpLSTX = 197 | ||
|
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| //Peek(197) Codes | ||
| .const scanCode_INS_DEL = 0 | ||
| .const scanCode_RET = 1 | ||
| .const scanCode_CUR_RI = 2 | ||
| .const scanCode_F7 = 3 | ||
| .const scanCode_F1 = 4 | ||
| .const scanCode_F3 = 5 | ||
| .const scanCode_F5 = 6 | ||
| .const scanCode_CUR_DN = 7 | ||
| .const scanCode_3 = 8 | ||
| .const scanCode_W = 9 | ||
| .const scanCode_A = 10 | ||
| .const scanCode_4 = 11 | ||
| .const scanCode_Z = 12 | ||
| .const scanCode_S = 13 | ||
| .const scanCode_E = 14 | ||
| .const scanCode_5 = 16 | ||
| .const scanCode_R = 17 | ||
| .const scanCode_D = 18 | ||
| .const scanCode_6 = 19 | ||
| .const scanCode_C = 20 | ||
| .const scanCode_F = 21 | ||
| .const scanCode_T = 22 | ||
| .const scanCode_X = 23 | ||
| .const scanCode_7 = 24 | ||
| .const scanCode_Y = 25 | ||
| .const scanCode_G = 26 | ||
| .const scanCode_8 = 27 | ||
| .const scanCode_B = 28 | ||
| .const scanCode_H = 29 | ||
| .const scanCode_U = 30 | ||
| .const scanCode_V = 31 | ||
| .const scanCode_9 = 32 | ||
| .const scanCode_I = 33 | ||
| .const scanCode_J = 34 | ||
| .const scanCode_0 = 35 | ||
| .const scanCode_M = 36 | ||
| .const scanCode_K = 37 | ||
| .const scanCode_O = 38 | ||
| .const scanCode_N = 39 | ||
| .const scanCode_PLUS = 40 | ||
| .const scanCode_P = 41 | ||
| .const scanCode_L = 42 | ||
| .const scanCode_MINUS = 43 | ||
| .const scanCode_FULSTP = 44 | ||
| .const scanCode_COLON = 45 | ||
| .const scanCode_AT = 46 | ||
| .const scanCode_COMMA = 47 | ||
| .const scanCode_POUND = 48 | ||
| .const scanCode_ASTRIK = 49 | ||
| .const scanCode_SEMICOLON = 50 | ||
| .const scanCode_CLEAR_HOME = 51 | ||
| .const scanCode_EQUALS = 53 | ||
| .const scanCode_EXPONENT_ARROW = 54 | ||
| .const scanCode_FWD_SLASH = 55 | ||
| .const scanCode_1 = 56 | ||
| .const scanCode_LEFT_ARROW = 57 | ||
| .const scanCode_2 = 59 | ||
| .const scanCode_SPACEBAR = 60 | ||
| .const scanCode_Q = 62 | ||
| .const scanCode_RUNSTOP = 63 | ||
| .const scanCode_NO_KEY = 64 | ||
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| .const joystickUp = %00000001 | ||
| .const joystickDown = %00000010 | ||
| .const joystickLeft = %00000100 | ||
| .const joystickRight = %00001000 | ||
| .const joystickFire = %00010000 |
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