Mercurial > hg > Members > kono > nitros9-code
annotate defs/vdgdefs @ 571:24956f96b7dd
All function prototypes are added.
| author | roug |
|---|---|
| date | Fri, 01 Nov 2002 10:02:34 +0000 |
| parents | c07686556109 |
| children | eff0182a503b |
| rev | line source |
|---|---|
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1 ifeq VDGINT |
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2 |
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3 VDGINT set 1 |
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4 |
| 0 | 5 ttl DEFs from VDGint |
| 6 | |
| 7 ********************** | |
| 8 * Defs from VDGint | |
| 9 * all offsets from 'U' (address of device memory area) | |
| 10 * (see p. 6-9, technical reference: U=start of driver data memory | |
| 11 * | |
| 12 * EDITION HISTORY: | |
| 13 | |
| 14 * Date Changes Made | |
| 15 * -------- ------------------------------ | |
| 16 * 91/05/07 Wrote original from VDGint source | |
| 17 | |
| 18 | |
| 19 * NOTE: There is LOTS of stuff which is only used once, and some which | |
| 20 * is not needed. Here's a list of the un-needed, and un-used (other than | |
| 21 * once) | |
| 22 * | |
| 23 * It would probably be benificial to patch VDGint to fix these problems, | |
| 24 * unless anyone else has ideas as to why VDGint is doing things this way. | |
| 25 * | |
| 26 * Un-needed | |
| 27 * VD.EPlt1 - (2) set to VD.NChar, and then read only | |
| 28 * VD.EPlt2 - (2) set to same as VD.EPlt1, and then unused | |
| 29 * VD.Chr1 - (1) set to same as VD.CChar, and then unused | |
| 30 * VD.PlFlg - (1) initialized to $08, and unused | |
| 31 * | |
| 32 * Un-used | |
| 33 * | |
| 34 * $1D - (1) end of SCF memory requirements | |
| 35 * VD.Strt1 - (2) CLRed, and then read (LDD) - left as $0000 | |
| 36 * $24-$2B - (8) | |
| 37 * $33-$34 - (2) | |
| 38 * $7E-$FF - (130) | |
| 39 * | |
| 40 * total of 22 (150 in whole page) bytes unneeded or unused. | |
| 41 | |
| 42 page | |
| 43 VD.Start equ $1E start of VD.XXXX data: number of VDG screens in use | |
| 44 VD.Strt1 equ $1F (2) and another start | |
| 45 VD.Caps equ $21 caps lock info: $00=lower $FF=upper | |
| 46 VD.DFlag equ $23 0=current screen is valid, $01-$FF = update video | |
| 47 * $24-$2B unused | |
| 48 VD.NGChr equ $2C number of additional characters to get | |
| 49 VD.RTAdd equ $2D (2) return address after getting characters | |
| 50 VD.EPlt1 equ $2F (2) pointer to where to put next character | |
| 51 VD.EPlt2 equ $31 (2) as above. | |
| 52 * $33-$34 unused | |
| 53 VD.CFlag equ $35 true lowercase flag $10=true, $00=false | |
| 54 VD.CFlg1 equ $36 VDG display code values | |
| 55 VD.DGBuf equ $37 number of currently displayed buffer | |
| 56 VD.ScrnA equ $38 (2) screen start address in system memory | |
| 57 VD.ScrnE equ $3A (2) address of end of screen | |
| 58 VD.CrsrA equ $3C (2) cursor address | |
| 59 VD.CrsAL equ $3D cursor address low | |
| 60 VD.CChar equ $3E value of character under cursor | |
| 61 VD.Mode equ $3F mode: 0=256x192 x2, 1=128x192 x4 | |
| 62 VD.Chr1 equ $40 same as under cursor character | |
| 63 VD.CColr equ $41 cursor color | |
| 64 VD.Col equ $42 number of columns for this screen | |
| 65 VD.Row equ $43 number of rows | |
| 66 VD.TFlg1 equ $44 see WRITE ($0E) | |
| 67 VD.Alpha equ $45 0 when in alpha mode | |
| 68 VD.Rdy equ $46 device ready (see SS.DStat 0=not ready | |
| 69 VD.SBAdd equ $47 (2) address of block screen is in | |
| 70 VD.Blk equ $49 Block number of screen | |
| 71 VD.GBuff equ $4A allocation for graphics buffers (block#) | |
| 72 VD.AGBuf equ $4B (2) additional graphics buffer | |
| 73 VD.HiRes equ $4D hi-res screen table (block value | |
| 74 VD.NBlk equ $4E number of blocks in this screen | |
| 75 VD.SType equ $4F screen type 0-4 | |
| 76 VD.HR2 equ $50 (3) for screen number 2 | |
| 77 VD.HR3 equ $53 (3) for screen 3 (same 3 bytes as above | |
| 78 VD.FF3 equ $56 (2) data for flood fill | |
| 79 VD.FF4 equ $58 (2) " | |
| 80 VD.FF5 equ $5A (2) " | |
| 81 VD.FF6 equ $5C flood fill flag | |
| 82 VD.MTabl equ $5D (2) address of mask table for pixels in byte | |
| 83 VD.PixBt equ $5F bit mask for modes (0=$07, 1=$03 )#pixels/byte | |
| 84 VD.GCrsX equ $60 graphics cursor X value | |
| 85 VD.GCrsY equ $61 graphics cursor Y | |
| 86 VD.Msk1 equ $62 mask byte 1 | |
| 87 VD.Msk2 equ $63 mask byte 2 (00,55,AA,FF) | |
| 88 VD.MCol equ $64 color? (C003,8001 | |
| 89 VD.MCol2 equ $65 color | |
| 90 VD.PMask equ $66 pixel mask for colors (i.e. $55, $CC etc | |
| 91 VD.FF1 equ $67 data for flood fill | |
| 92 VD.FF2 equ $68 data for flood fill | |
| 93 VD.FFMsk equ $69 flood fill mask | |
| 94 VD.FFFlg equ $6A flood fill flag | |
| 95 VD.Palet equ $6B (16) current palette values | |
| 96 VD.PlFlg equ $7B initialized to $08 by L00DB, and then unused! | |
| 97 VD.NChar equ $7C character to process | |
| 98 VD.NChr2 equ $7D and the next one | |
| 99 | |
| 100 * and RMB until we get 256 bytes reserved | |
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102 endc |
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