source: buchla-68k/iolib/hwdefs.s@ ca867c1

Last change on this file since ca867c1 was 8325447, checked in by Thomas Lopatic <thomas@…>, 7 years ago

Removed _ prefix.

  • Property mode set to 100644
File size: 2.7 KB
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1| ------------------------------------------------------------------------------
2| hwdefs.s -- External definitions of Buchla 700 I/O addresses
3| Version 14 -- 1988-08-15 -- D.N. Lynx Crowe
4| ------------------------------------------------------------------------------
5 .text
6
7 .xdef io_time,io_lcd,io_ser,io_midi
8 .xdef io_disk,io_tone,io_leds,io_kbrd
9 .xdef io_vreg,io_vraw,io_vram,io_fpu
10 .xdef lcd_a0,lcd_a1
11
12 .xdef v_regs,v_odtab,v_actab
13 .xdef v_ct0
14 .xdef v_gt1
15 .xdef v_score,v_cgtab
16
17 .xdef v_curs0,v_curs1,v_curs2,v_curs3
18 .xdef v_curs4,v_curs5,v_curs6,v_curs7
19 .xdef v_kbobj,v_lnobj,v_tcur
20 .xdef v_win0
21 .xdef v_cur
22
23 .xdef fc_sw,fc_val
24
25| ------------------------------------------------------------------------------
26
27| Hardware base addresses
28| -----------------------
29io_fpu = 0x180000 | FPU base address
30
31VB = 0x200000 | VSDD base address
32
33io_time = 0x3A0001 | Timer chip
34io_lcd = 0x3A4001 | LCD controller
35io_ser = 0x3A8001 | Serial ports (RS232)
36io_midi = 0x3AC001 | MIDI ports
37io_disk = 0x3B0001 | Disk controller
38io_tone = 0x3B4001 | Sound generator chip
39io_leds = 0x3B8001 | LED driver
40io_kbrd = 0x3BC001 | Keyboard / panel processor
41
42lcd_a0 = io_lcd | LCD port a0
43lcd_a1 = io_lcd+2 | LCD port a1
44
45 .page
46
47| Video definitions
48| -----------------
49io_vreg = VB | Relocated video registers after setup
50io_vraw = VB+0x400 | Raw video registers at RESET
51io_vram = VB | Video RAM base address
52
53| Name Offset Usage Bank
54| ------- --------- ------------------------- ----
55v_regs = VB | Video registers 0,1
56
57v_odtab = VB+128 | Object Descriptor Table 0
58v_actab = VB+256 | Access Table 0
59v_ct0 = VB+1024 | Character Text-0 0
60v_gt1 = VB+1304 | Graphics Text-1 0
61v_score = VB+8192 | Score object 0
62v_cgtab = VB+122880 | Character Generator Table 0
63
64v_curs0 = VB+1024 | Cursor object 0 (arrow ULE) 1
65v_curs1 = VB+1152 | Cursor object 1 (arrow ULO) 1
66v_curs2 = VB+1280 | Cursor object 2 (arrow URE) 1
67v_curs3 = VB+1408 | Cursor object 3 (arrow URO) 1
68v_curs4 = VB+1536 | Cursor object 4 (arrow LLE) 1
69v_curs5 = VB+1664 | Cursor object 5 (arrow LLO) 1
70v_curs6 = VB+1792 | Cursor object 6 (arrow LRE) 1
71v_curs7 = VB+1920 | Cursor object 7 (arrow LRO) 1
72v_tcur = VB+2048 | Typewriter cursor 1
73v_kbobj = VB+2880 | Keyboard object 1
74v_lnobj = VB+4672 | Line object 1
75v_cur = VB+6464 | Underline cursor 1
76v_win0 = VB+16384 | Window-0 object 1
77
78| BIOS RAM definitions
79| --------------------
80| WARNING: the following addresses must match those of the corresponding
81| variables defined in bios.s or chaos is guaranteed.
82
83fc_sw = 0x420 | word - Frame counter switch
84fc_val = 0x422 | long - Frame counter value
85
86 .end
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