jmechner April 17, 2012
Attempted line ending fix

0 contributors

## Users on GitHub who have contributed to this file

100755 235 lines (182 sloc) 2.877 kb

- Edit this file
- Raw
- Blame
- History

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    123
    124
    125
    126
    127
    128
    129
    130
    131
    132
    133
    134
    135
    136
    137
    138
    139
    140
    141
    142
    143
    144
    145
    146
    147
    148
    149
    150
    151
    152
    153
    154
    155
    156
    157
    158
    159
    160
    161
    162
    163
    164
    165
    166
    167
    168
    169
    170
    171
    172
    173
    174
    175
    176
    177
    178
    179
    180
    181
    182
    183
    184
    185
    186
    187
    188
    189
    190
    191
    192
    193
    194
    195
    196
    197
    198
    199
    200
    201
    202
    203
    204
    205
    206
    207
    208
    209
    210
    211
    212
    213
    214
    215
    216
    217
    218
    219
    220
    221
    222
    223
    224
    225
    226
    227
    228
    229
    230
    231
    232
    233
    234
    *  bootorg = $800 lst off*-------------------------------* $800 TS (0,0) boot sector
    SLOT = $2bsector = $50
    text = $fb2fhome = $fc58vtab = $FB5Bcout = $FDF0normal = $fe84pr0 = $fe93in0 = $fe89
    *------------------------------- org org
     hex 01
    entry lda #$60 sta entry
     lda #$ff sta $4fb sta $3f3 sta $3f4 sta $c000 ;80store off sta $c002 ;RAMRD main sta $c004 ;RAMWRT main sta $c00c ;80col off sta $c00e ;Altcharset off sta $c081 ;write RAM, read ROM (2nd 4k bank) jsr text jsr home jsr normal jsr pr0 jsr in0
     ldx SLOT txa lsr lsr lsr lsr ora #$c0 sta :rdsect+2 lda #$0f sta sector
    :0 ldy sector lda skewtbl,y sta $3d lda sectaddr,y beq :1 sta $27:rdsect jsr $005c:1 dec sector bne :0
     lda SLOT jmp $900
    skewtbl hex 00,0d,0b,09,07,05,03,01 hex 0e,0c,0a,08,06,04,02,0f
    sectaddr hex 00,09,00,00,00,00,00,00 hex 30,31,32,33,34,00,00,00
    *===============================*  boot stage 2
    rw18 = $d000
    slot = $fdtrack = $felastrack = $ff
     dum $00
    dest ds 2source ds 2endsourc ds 2
     dend*------------------------------- ds $900-*
    stage2 stx slot
     jsr check128k ;check for 128K memory
     jsr moverw18 ;& move RW18 to D000
     lda #0 sta lastrack sta $3f3 sta $3f4 ;zero reset vector
     jsr rw18 hex 07,a9 ;Bbund ID byte
     jsr rw18 hex 00,01,00 ;drive 1 on
     jsr rw18 ;seek track 1 hex 02,00,01
    * load & run stage 3 boot* from drive 1
     jsr rw18 hex c3,ee
     jmp $ee00
    *-------------------------------------------------* Check for AUX memory routine
    CHECKER lda #$EE sta $C005 sta $C003 sta $0800 lda $0C00 cmp #$EE bne :0 asl $0C00 lda $0800 cmp $0C00 beq :1:0 clc:1 sta $C004 sta $C002 rts
    CHECKEND = *-CHECKER
    *-------------------------------------------------** Check to make sure //c or //e* with 128k**-------------------------------check128k sta $c081
     lda $FBB3 ;Apple // family ID byte cmp #6 bne NOT128K ;Must be e/c/GS
     bit $C017 bmi NOT128K
     ldx #CHECKEND:0 lda CHECKER,X sta $180,X dex bpl :0
     jsr $180 bcs NOT128K
     rts
    *-------------------------------* Turn off drive and display message
    NOT128K ldx SLOT lda $C088,X
     jsr text jsr home lda #8 jsr vtab
     ldy #0:0 lda MEMTEXT,Y beq * jsr cout cmp #$8D bne :1 lda #4 sta $24:1 iny bne :0
    MEMTEXT hex 8D asc "REQUIRES A //C OR //E WITH 128K" hex 00
    *-------------------------------* Move RW18* d0 < 30.40*-------------------------------moverw18 bit $c08b bit $c08b ;rd/wrt RAM, 1st 4k bank
     lda #$d0 ldx #$30 ldy #$40
    * a < x.y* 20 < 40.60 means 2000 < 4000.5fffm* WARNING: If x >= y, routine will wipe out 64k
    movemem sta dest+1 stx source+1 sty endsourc+1
     ldy #0 sty dest sty source sty endsourc
    :loop lda (source),y sta (dest),y
     iny bne :loop
     inc source+1 inc dest+1
     lda source+1 cmp endsourc+1 bne :loop
     rts
    *------------------------------- sav boot

## Keyboard Shortcuts (see all)

### Site wide shortcuts

s
  Focus site search

?
  Bring up this help dialog

### Commit list

j
  Move selection down

k
  Move selection up

c or o or enter
  Open commit

y
  Expand URL to its canonical form

### Pull request list

j
  Move selection down

k
  Move selection up

o or enter
  Open issue

⌘ctrl + enter
  Submit comment

### Issues

j
  Move selection down

k
  Move selection up

x
  Toggle selection

o or enter
  Open issue

⌘ctrl + enter
  Submit comment

I
  Mark selection as read

U
  Mark selection as unread

y
  Remove selection from view

c
  Create issue

l
  Create label

i
  Back to inbox

u
  Back to issues

/
  Focus issues search

### Issues Dashboard

j
  Move selection down

k
  Move selection up

o or enter
  Open issue

### Network Graph

← or h
  Scroll left

→ or l
  Scroll right

↑ or k
  Scroll up

↓ or j
  Scroll down

t
  Toggle visibility of head labels

shift ← or shift h
  Scroll all the way left

shift → or shift l
  Scroll all the way right

shift ↑ or shift k
  Scroll all the way up

shift ↓ or shift j
  Scroll all the way down

### Source Code Browsing

t
  Activates the file finder

l
  Jump to line

w
  Switch branch/tag

y
  Expand URL to its canonical form

### Browsing Commits

⌘ctrl + enter
  Submit comment

escape
  Close form

## Markdown Cheat Sheet

### Format Text

Headers

    # This is an <h1> tag
    ## This is an <h2> tag
    ###### This is an <h6> tag

Text styles

    *This text will be italic*
    _This will also be italic_
    **This text will be bold**
    __This will also be bold__

    *You **can** combine them*

### Lists

Unordered

    * Item 1
    * Item 2
      * Item 2a
      * Item 2b

Ordered

    1. Item 1
    2. Item 2
    3. Item 3
       * Item 3a
       * Item 3b

### Miscellaneous

Images

    ![GitHub Logo](/images/logo.png)
    Format: ![Alt Text](url)

Links

    http://github.com - automatic!
    [GitHub](http://github.com)

Blockquotes

    As Kanye West said:

    > We're living the future so
    > the present is our past.

### Code Examples in Markdown

Syntax highlighting with GFM

    ```javascript
    function fancyAlert(arg) {
      if(arg) {
        $.facebox({div:'#foo'})
      }
    }
    ```

Or, indent your code 4 spaces

    Here is a Python code example
    without syntax highlighting:

        def foo:
          if not bar:
            return true

Inline code for comments

    I think you should use an
    `<addr>` element here instead.

Something went wrong with that request. Please try again. Dismiss

## Looking for the GitHub logo?

- #### GitHub Logo

  Download

- #### The Octocat

  Download