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