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0
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1
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2 * miscellaneous definitions
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3 HResMaxX equ 639 high resolution X limit
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4 HResMaxY equ 191 high resolution Y limit
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5 MousData equ $0008 arbitrary choice for mouse data area ($0008-$000F)
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6 PcktSize equ 5 number of bytes in mouse data packet
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7 SyncData equ %10000000 initial mouse data byte pattern
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8 SyncMask equ %11111000 mask for initial mouse data byte pattern
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9
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10 * 65C52 register definitions
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11 org 0
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12 ISReg rmb 1 IRQ Status (read only)
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13 IEReg equ ISReg IRQ Enable (write only)
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14 CSReg rmb 1 Control Status (read only)
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15 CFReg equ CSReg Control/Format (write only)
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16 CDReg rmb 1 Compare Data (write only, unused in this driver)
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17 TBReg equ CDReg Transmit Break (write only)
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18 DataReg rmb 1 receive/transmit Data (read Rx / write Tx)
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19
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20 * IRQ Status/Enable bit definitions
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21 ISE.IRQ equ %10000000 IRQ occurred/enable
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22 ISE.TxE equ %01000000 Tx data register Empty
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23 ISE.CTS equ %00100000 CTS transition
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24 ISE.DCD equ %00010000 DCD transition
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25 ISE.DSR equ %00001000 DSR transition
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26 ISE.FOB equ %00000100 receive data Framing or Overrun error, or Break
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27 ISE.Par equ %00000010 Parity error in Rx data
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28 ISE.RxF equ %00000001 Rx data register Full
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29
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30 ISE.Errs equ ISE.FOB!ISE.Par IRQ Status error bits
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31 ISE.Flip equ $00 all ISR bits active when set
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32 ISE.Mask equ ISE.FOB!ISE.Par!ISE.RxF active IRQs
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33
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34 * Control Status bit definitions
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35 CS.Frame equ %10000000 framing error (set=error)
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36 CS.TxE equ %01000000 Tx data empty (set=empty)
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37 CS.CTS equ %00100000 CTS input (set=disabled)
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38 CS.DCD equ %00010000 DCD input (set=disabled)
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39 CS.DSR equ %00001000 DSR input (set=disabled)
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40 CS.Break equ %00000100 Rx line break (set=received break)
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41 CS.DTR equ %00000010 DTR output (set=disabled)
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42 CS.RTS equ %00000001 RTS output (set=disabled)
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43
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44 * Control bit definitions
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45 C.TBRCDR equ %01000000 Tx Break/Compare Data register access (set=Tx Break)
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46 C.StpBit equ %00100000 stop bits (set=two, clear=one)
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47 C.Echo equ %00010000 local echo (set=activated)
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48 C.Baud equ %00001111 see baud rate table below
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49
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50 * baud rate table
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51 org 0
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52 BR.00050 rmb 1 50 baud
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53 BR.00110 rmb 1 109.2 baud
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54 BR.00135 rmb 1 134.58 baud
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55 BR.00150 rmb 1 150 baud
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56 BR.00300 rmb 1 300 baud
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57 BR.00600 rmb 1 600 baud
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58 BR.01200 rmb 1 1200 baud
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59 BR.01800 rmb 1 1800 baud
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60 BR.02400 rmb 1 2400 baud
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61 BR.03600 rmb 1 3600 baud
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62 BR.04800 rmb 1 4800 baud
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63 BR.07200 rmb 1 7200 baud
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64 BR.09600 rmb 1 9600 baud
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65 BR.19200 rmb 1 19200 baud
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66 BR.38400 rmb 1 38400 baud
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67 BR.ExClk rmb 1 external Rx and Tx clocks
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68
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69 * Format bit definitions
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70 F.Slct equ %10000000 register select (set=Format, clear=Control)
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71 F.DatBit equ %01100000 see data bit table below
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72 F.Par equ %00011100 see parity table below
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73 F.DTR equ %00000010 DTR output (set=disabled)
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74 F.RTS equ %00000001 RTS output (set=disabled)
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75
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76 * data bit table
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77 DB.5 equ %00000000 five data bits per character
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78 DB.6 equ %00100000 six data bits per character
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79 DB.7 equ %01000000 seven data bits per character
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80 DB.8 equ %01100000 eight data bits per character
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81
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82 * parity table
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83 Par.None equ %00000000
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84 Par.Odd equ %00000100
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85 Par.Even equ %00001100
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86 Par.Mark equ %00010100
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87 Par.Spac equ %00011100
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88
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89 * Transmit Break bit definitions
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90 TB.Brk equ %00000010 Tx break control (set=transmit continuous line Break)
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91 TB.Par equ %00000001 parity check (set=parity bit to ISE.Par, clear=normal)
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92
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93 * Btn.Cntr bit definitions
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94 BC.Butn1 equ %00100000 button #1 (left, 1 = pressed)
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95 BC.Butn2 equ %00010000 button #2 (middle, 1 = pressed)
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96 BC.Butn3 equ %00001000 button #3 (right, 1 = pressed)
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97 BC.RxCnt equ %00000111 Rx data counter
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98
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99 BC.Butns equ BC.Butn1!BC.Butn2!BC.Butn3 mask for all buttons
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100
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101
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102 * mouse static data area definitions
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103 org 0
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104 Btn.Cntr rmb 1 mouse button status and Rx data counter
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105 Buffer rmb 3 Rx buffer for 1st 3 bytes of XY mouse data (must start at 1,u)
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106 CrntXPos rmb 2 mouse X position (0 to HResMaxX)
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107 CrntYPos rmb 2 mouse Y position (0 to HResMaxY*2)
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108
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