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annotate defs/mc09.d @ 3140:03b580a02945

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Allow CoCo3FPGA-specific build of superdesc.asm Added new conditional CC3FPGA and code to "level1/modules/superdesc.asm" to reflect changes needed to build the new SD card descriptors for the Coco3FPGA.
author Bill Pierce <merlinious999@gmail.com>
date Sat, 04 Feb 2017 11:06:26 +0100
parents ef66bdab9b45
children 927ba5ebc06e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 IFNE MC09.D-1
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2 MC09.D SET 1
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3
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4 ********************************************************************
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5 * mc09.d - NitrOS-9 System Definitions for the Multicomp09
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6 *
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7 * When the primary boot loader passes control to the "track34" code
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8 * the system memory map looks like this:
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9 *
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10 * $0000----> ==================================
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11 * | |
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12 * | |
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13 * | RAM |
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14 * | |
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15 * | |
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16 * $FFD0---->|==================================|
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17 * | I/O |
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18 * $FFE0---->|==================================|
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19 * | RAM |
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20 * |==================================|
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21 * $FFFF---->
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22 *
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23 * The exception vectors at $FFF2 and onwards are initialised to vector to RAM
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24 * as per coco1, just as krn expects. Specifically:
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25 *
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26 * $FFF2 holds vector to $0100 for SWI3
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27 * $FFF4 holds vector to $0103 for SWI2
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28 * $FFF6 holds vector to $010F for FIRQ
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29 * $FFF8 holds vector to $010C for IRQ
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30 * $FFFA holds vector to $0106 for SWI
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31 * $FFFC holds vector to $0109 for NMI
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32 *
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33 * The 16-location I/O space and the interrupt hook-up are described below.
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34 *
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35 * $Id$
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36 *
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37 * Edt/Rev YYYY/MM/DD Modified by
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38 * Comment
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39 * ------------------------------------------------------------------
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40 * 0.1 2015/10/17 Neal Crook. Tidy-up for first commit.
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41 *
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42 NAM Multicomp09Defs
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43 IFEQ Level-1
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44 TTL NitrOS-9 System Definitions for the Multicomp09
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45 ELSE
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46 IFEQ Level-2
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47 TTL NitrOS-9 Level 2 System Type Definitions
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48 ELSE
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49 IFEQ Level-3
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50 TTL NitrOS-9 Level 3 System Type Definitions
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51 ENDC
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52 ENDC
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53 ENDC
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54
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55
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56 **********************
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57 * CPU Type Definitions
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58 *
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59 Color SET 1
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60 Color3 SET 2
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61 IFEQ Level-1
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62 CPUType SET Color
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63 ELSE
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64 CPUType SET Color3
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65 ENDC
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66
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67
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68 ******************************
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69 * Clock Speed Type Definitions
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70 *
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71 OneMHz EQU 1
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72 TwoMHz EQU 2
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73 IFEQ CPUType-Color
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74 CPUSpeed SET OneMHz
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75 ELSE
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76 CPUSpeed SET TwoMHz
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77 ENDC
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78
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79
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80 **********************************
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81 * Power Line Frequency Definitions
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82 * Multicomp09 has no dependency on power line frequency but setting
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83 * it to Hz50 is the simplest way to make TkPerSec 50, which is important
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84 * [NAC HACK 2015Aug31] actually no need to change it - gets applied at
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85 * command line in modules/makefile to generate a 50Hz and 60Hz version.
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86 *
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87 Hz50 EQU 50 Assemble clock for 50 hz power
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88 Hz60 EQU 60 Assemble clock for 60 hz power
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89 IFNDEF PwrLnFrq
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90 PwrLnFrq SET Hz50 Set to Appropriate freq
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91 ENDC
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92
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93
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94 **********************************
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95 * Ticks per second
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96 *
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97 IFNDEF TkPerSec
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98 IFEQ PwrLnFrq-Hz50
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99 TkPerSec SET 50
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100 ELSE
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101 TkPerSec SET 60
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102 ENDC
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103 ENDC
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104
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105
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106 ******************
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107 * ACIA type set up
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108 *
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109 * [NAC HACK 2015Sep06] is this used anywhere?
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110 ORG 1
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111 ACIA6850 RMB 1 MC6850 acia.
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112 ACIA6551 RMB 1 SY6551 acia.
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113 ACIA2661 RMB 1 SC2661 acia.
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114 ACIATYPE SET ACIA6551
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115
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116
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117 ****************************************
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118 * Special character Bit position equates
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119 *
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120 SHIFTBIT EQU %00000001
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121 CNTRLBIT EQU %00000010
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122 ALTERBIT EQU %00000100
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Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
123 UPBIT EQU %00001000
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
124 DOWNBIT EQU %00010000
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
125 LEFTBIT EQU %00100000
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
126 RIGHTBIT EQU %01000000
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
127 SPACEBIT EQU %10000000
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
128
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
129
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
130 ********************************************************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
131 * Multicomp09 Interrupts:
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
132 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
133 * NMI - wired to single-step logic
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
134 * FIRQ - (currently) unused
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
135 * IRQ - wired to timer interrupt, VDU/KBD virtual ACIA and serial
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
136 * ports 1 and 2.
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
137
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
138 ********************************************************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
139 * Multicomp09 I/O space is $FFD0-$FFDF (16 locations). The equates
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
140 * below describe the I/O registers.
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
141
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
142 ********************************************************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
143 * VDU/KBD (VIRTUAL ACIA)
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
144 VDUSTA EQU $FFD0
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
145 VDUDAT EQU $FFD1
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
146
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
147 * SERIAL PORT 1
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
148 UARTSTA1 EQU $FFD2
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
149 UARTDAT1 EQU $FFD3
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
150
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
151 * SERIAL PORT 2
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
152 UARTSTA2 EQU $FFD4
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
153 UARTDAT2 EQU $FFD5
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
154
3118
ef66bdab9b45 mc09: Add mc09rtc command and GPIO registers defs in mc09.d
Neal Crook <foofoobedoo@gmail.com>
parents: 3116
diff changeset
155 ********************************************************************
3116
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
156 * GPIO device
3118
ef66bdab9b45 mc09: Add mc09rtc command and GPIO registers defs in mc09.d
Neal Crook <foofoobedoo@gmail.com>
parents: 3116
diff changeset
157 * SEE VHDL HEADER FOR PROG GUIDE
3116
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
158 GPIOADR EQU $FFD6
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
159 GPIODAT EQU $FFD7
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
160
3118
ef66bdab9b45 mc09: Add mc09rtc command and GPIO registers defs in mc09.d
Neal Crook <foofoobedoo@gmail.com>
parents: 3116
diff changeset
161 * values supported by GPIOADR register
ef66bdab9b45 mc09: Add mc09rtc command and GPIO registers defs in mc09.d
Neal Crook <foofoobedoo@gmail.com>
parents: 3116
diff changeset
162 GPDAT0 EQU 0
ef66bdab9b45 mc09: Add mc09rtc command and GPIO registers defs in mc09.d
Neal Crook <foofoobedoo@gmail.com>
parents: 3116
diff changeset
163 GPDDR1 EQU 1
ef66bdab9b45 mc09: Add mc09rtc command and GPIO registers defs in mc09.d
Neal Crook <foofoobedoo@gmail.com>
parents: 3116
diff changeset
164 GPDAT2 EQU 2
ef66bdab9b45 mc09: Add mc09rtc command and GPIO registers defs in mc09.d
Neal Crook <foofoobedoo@gmail.com>
parents: 3116
diff changeset
165 GPDDR3 EQU 3
ef66bdab9b45 mc09: Add mc09rtc command and GPIO registers defs in mc09.d
Neal Crook <foofoobedoo@gmail.com>
parents: 3116
diff changeset
166
ef66bdab9b45 mc09: Add mc09rtc command and GPIO registers defs in mc09.d
Neal Crook <foofoobedoo@gmail.com>
parents: 3116
diff changeset
167
3116
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
168 ********************************************************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
169 * SDCARD CONTROL REGISTERS
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
170 * SEE VHDL HEADER FOR PROG GUIDE
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
171 SDDATA EQU $FFD8
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
172 SDCTL EQU $FFD9
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
173 SDLBA0 EQU $FFDA
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
174 SDLBA1 EQU $FFDB
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
175 SDLBA2 EQU $FFDC
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
176
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
177 ********************************************************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
178 * 50Hz TIMER INTERRUPT
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
179 * TIMER (READ/WRITE)
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
180 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
181 * AT RESET, THE TIMER IS DISABLED AND THE INTERRUPT IS DEASSERTED. TIMER READS AS 0.
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
182 * BIT[1] IS READ/WRITE, TIMER ENABLE.
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
183 * BIT[7] IS READ/WRITE-1-TO-CLEAR, INTERRUPT.
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
184 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
185 * IN AN ISR THE TIMER CAN BE SERVICED BY PERFORMING AN INC ON ITS ADDRESS
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
186 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
187 * READ WRITE COMMENT
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
188 * N/A $02 ENABLE TIMER
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
189 * $00 $01 TIMER WAS/REMAINS DISABLED. N=0.
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
190 * $02 $03 TIMER WAS/REMAINS ENABLED, NO INTERRUPT. N=0.
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
191 * $80 $81 TIMER WAS/REMAINS DISABLED, OLD PENDING INTERRUPT CLEARED. N=1.
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
192 * $82 $83 TIMER WAS/REMAINS DISABLED, OLD PENDING INTERRUPT CLEARED. N=1.
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
193 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
194 TIMER EQU $FFDD
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
195
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
196 ********************************************************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
197 * MEM_MAPPER2 CONTROL REGISTERS
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
198 * MMUADR (WRITE-ONLY)
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
199 * 7 - ROMDIS (RESET TO 0)
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
200 * 6 - TR
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
201 * 5 - MMUEN
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
202 * 4 - RESERVED
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
203 * 3:0 - MAPSEL
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
204 * MMUDAT (WRITE-ONLY)
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
205 * 7 - WRPROT
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
206 * 6:0 - PHYSICAL BLOCK FOR CURRENT MAPSEL
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
207
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
208 MMUADR EQU $FFDE
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
209 MMUDAT EQU $FFDF
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
210
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
211
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
212
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
213 ********************************************************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
214 ********************************************************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
215 * Coco stuff that's needed to allow other files to compile
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
216 * [NAC HACK 2015Oct17] need to get rid of this eventually.
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
217
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
218 A.AciaP SET $FF68 Aciapak Address
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
219 A.ModP SET $FF6C ModPak Address
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
220 DPort SET $FF40 Disk controller base address
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
221 MPI.Slct SET $FF7F Multi-Pak slot select
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
222 MPI.Slot SET $03 Multi-Pak default slot
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
223 PIA0Base EQU $FF00
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
224 PIA1Base EQU $FF20
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
225
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
226
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
227 ******************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
228 * VDG Devices
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
229 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
230 A.TermV SET $FFC0 VDG Term
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
231 A.V1 SET $FFC1 Possible additional VDG Devices
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
232 A.V2 SET $FFC2
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
233 A.V3 SET $FFC3
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
234 A.V4 SET $FFC4
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
235 A.V5 SET $FFC5
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
236 A.V6 SET $FFC6
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
237 A.V7 SET $FFC7
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
238
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
239
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
240 IFEQ Level-1
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
241
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
242 *************************************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
243 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
Neal Crook <foofoobedoo@gmail.com>
parents:
diff changeset
244 * NitrOS-9 Level 1 Section
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245 *
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246 *************************************************
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247
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248 HW.Page SET $FF Device descriptor hardware page
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249
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
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250 ELSE
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251
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252 *************************************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
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253 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
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254 * NitrOS-9 Level 2 Section
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255 *
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256 *************************************************
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257
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
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258 ****************************************
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259 * Dynamic Address Translator Definitions
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260 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
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261 DAT.BlCt EQU 8 D.A.T. blocks/address space
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262 DAT.BlSz EQU (256/DAT.BlCt)*256 D.A.T. block size
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263 DAT.ImSz EQU DAT.BlCt*2 D.A.T. Image size
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264 DAT.Addr EQU -(DAT.BlSz/256) D.A.T. MSB Address bits
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265 DAT.Task EQU $FF91 Task Register address
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266 DAT.TkCt EQU 32 Number of DAT Tasks
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267 DAT.Regs EQU $FFA0 DAT Block Registers base address
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268 DAT.Free EQU $333E Free Block Number
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269 DAT.BlMx EQU $3F Maximum Block number
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270 DAT.BMSz EQU $40 Memory Block Map size
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271 DAT.WrPr EQU 0 no write protect
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272 DAT.WrEn EQU 0 no write enable
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273 SysTask EQU 0 Coco System Task number
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274 IOBlock EQU $3F
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275 ROMBlock EQU $3F
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276 IOAddr EQU $7F
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277 ROMCount EQU 1 number of blocks of ROM (High RAM Block)
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278 RAMCount EQU 1 initial blocks of RAM
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279 MoveBlks EQU DAT.BlCt-ROMCount-2 Block numbers used for copies
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280 BlockTyp EQU 1 chk only first bytes of RAM block
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281 ByteType EQU 2 chk entire block of RAM
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282 Limited EQU 1 chk only upper memory for ROM modules
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283 UnLimitd EQU 2 chk all NotRAM for modules
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284 * NOTE: this check assumes any NotRAM with a module will
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285 * always start with $87CD in first two bytes of block
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286 RAMCheck EQU BlockTyp chk only beg bytes of block
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287 ROMCheck EQU Limited chk only upper few blocks for ROM
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288 LastRAM EQU IOBlock maximum RAM block number
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289
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290 ***************************
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
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291 * Color Computer 3 Specific
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292 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
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293 MappedIO EQU true (Actually False but it works better this way)
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294
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295 ********************
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296 * Hardware addresses
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297 *
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
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298 GIMERegs EQU $FF00 Base address of GIME registers
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299 IrqEnR EQU $FF92 GIME IRQ enable/status register
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300 BordReg EQU $FF9A Border color register
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301 PalAdr EQU $FFB0 Palette registers
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302
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303 HW.Page SET $07 Device descriptor hardware page
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304
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305 ENDC
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
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306
174eb9eda7b1 New port "mc09" for Multicomp09, an FPGA-based 6809 machine
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307 ENDC