Mercurial > hg > Members > kono > nitros9-code
annotate defs/vdgdefs @ 2945:582b5b7232c0
pacos9: Rename assembler files to .as and port makefile to lwtools
And build pacos9 by default again.
Nowadays .a files are library archive files.
According to rules.mak, as. files are to be built as object files
for later linking with lwlink, similar to old RMA/RLINK.
| author | Tormod Volden <debian.tormod@gmail.com> |
|---|---|
| date | Sat, 08 Feb 2014 01:03:26 +0100 |
| parents | e396d4f24b27 |
| children |
| rev | line source |
|---|---|
| 2024 | 1 IFNE VDGDEFS-1 |
| 1804 | 2 |
| 2024 | 3 VDGDEFS SET 1 |
| 0 | 4 |
| 1200 | 5 ******************************************************************** |
| 6 * VDGDefs - VDG Interface Definititions | |
| 7 * | |
| 8 * $Id$ | |
| 0 | 9 * |
| 1200 | 10 * Edt/Rev YYYY/MM/DD Modified by |
| 11 * Comment | |
| 12 * ------------------------------------------------------------------ | |
| 13 * 1991/05/07 Alan DeKok | |
| 1804 | 14 * Wrote original from VDGInt source. |
| 0 | 15 |
| 2024 | 16 NAM VDGDefs |
| 17 TTL VDG Interface Definitions | |
| 0 | 18 |
| 1200 | 19 * Notes: |
| 20 * | |
| 21 * All offsets from 'U' (address of device memory area) | |
| 22 * (see p. 6-9, technical reference: U=start of driver data memory | |
| 0 | 23 * NOTE: There is LOTS of stuff which is only used once, and some which |
| 24 * is not needed. Here's a list of the un-needed, and un-used (other than | |
| 25 * once) | |
| 26 * | |
| 1200 | 27 * It would probably be benificial to patch VDGint to fix these problems, |
| 0 | 28 * unless anyone else has ideas as to why VDGint is doing things this way. |
| 29 * | |
| 30 * Un-needed | |
| 31 * VD.EPlt1 - (2) set to VD.NChar, and then read only | |
| 32 * VD.EPlt2 - (2) set to same as VD.EPlt1, and then unused | |
| 33 * VD.Chr1 - (1) set to same as VD.CChar, and then unused | |
| 34 * VD.PlFlg - (1) initialized to $08, and unused | |
| 35 * | |
| 36 * Un-used | |
| 37 * | |
| 38 * $1D - (1) end of SCF memory requirements | |
| 39 * VD.Strt1 - (2) CLRed, and then read (LDD) - left as $0000 | |
| 40 * $24-$2B - (8) | |
| 41 * $33-$34 - (2) | |
| 42 * $7E-$FF - (130) | |
| 43 * | |
| 1200 | 44 * Total of 22 (150 in whole page) bytes unneeded or unused. |
| 0 | 45 |
| 2024 | 46 ORG $1E |
| 47 VD.Start RMB 1 start of VD.XXXX data: number of VDG screens in use | |
| 48 VD.Strt1 RMB 2 (2) and another start | |
| 49 VD.Caps RMB 2 caps lock info: $00=lower $FF=upper | |
| 50 VD.DFlag RMB 1 0=current screen is valid, $01-$FF = update video | |
| 0 | 51 * $24-$2B unused |
| 2024 | 52 RMB 8 |
| 53 VD.NGChr RMB 1 number of additional characters to get | |
| 54 VD.RTAdd RMB 2 (2) return address after getting characters | |
| 55 VD.EPlt1 RMB 2 (2) pointer to where to put next character | |
| 56 VD.EPlt2 RMB 2 (2) as above. | |
| 0 | 57 * $33-$34 unused |
| 2024 | 58 RMB 2 |
| 59 VD.CFlag RMB 1 true lowercase flag $10=true, $00=false | |
| 60 VD.CFlg1 RMB 1 VDG display code values | |
| 61 VD.DGBuf RMB 1 number of currently displayed buffer | |
| 62 VD.ScrnA RMB 2 (2) screen start address in system memory | |
| 63 VD.ScrnE RMB 2 (2) address of end of screen | |
| 64 VD.CrsrA RMB 1 (2) cursor address | |
| 65 VD.CrsAL RMB 1 cursor address low | |
| 66 VD.CChar RMB 1 value of character under cursor | |
| 67 VD.Mode RMB 1 mode: 0=256x192 x2, 1=128x192 x4 | |
| 68 VD.Chr1 RMB 1 same as under cursor character | |
| 69 VD.CColr RMB 1 cursor color | |
| 70 VD.Col RMB 1 number of columns for this screen | |
| 71 VD.Row RMB 1 number of rows | |
| 72 VD.TFlg1 RMB 1 see WRITE ($0E) | |
| 73 VD.Alpha RMB 1 0 when in alpha mode | |
| 74 VD.Rdy RMB 1 device ready (see SS.DStat 0=not ready) | |
| 75 VD.SBAdd RMB 2 (2) address of block screen is in | |
| 76 VD.Blk RMB 1 Block number of screen | |
| 77 VD.GBuff RMB 1 allocation for graphics buffers (block#) | |
| 78 VD.AGBuf RMB 2 (2) additional graphics buffer | |
| 79 VD.HiRes RMB 1 hi-res screen table (block value) | |
| 80 VD.NBlk RMB 1 number of blocks in this screen | |
| 81 VD.SType RMB 1 screen type 0-4 | |
| 82 VD.HR2 RMB 3 (3) for screen number 2 | |
| 83 VD.HR3 RMB 3 (3) for screen 3 (same 3 bytes as above) | |
| 84 VD.FFMem RMB 2 (2) bottom of stack for flood fill | |
| 85 VD.FFSPt RMB 2 (2) flood fill stack pointer | |
| 86 VD.FFSTp RMB 2 (2) flood fill stack top pointer | |
| 87 VD.FF6 RMB 1 flood fill flag | |
| 88 VD.MTabl RMB 2 (2) address of mask table for pixels in byte | |
| 89 VD.PixBt RMB 1 bit mask for modes (0=$07, 1=$03 )#pixels/byte | |
| 90 VD.GCrsX RMB 1 graphics cursor X value | |
| 91 VD.GCrsY RMB 1 graphics cursor Y | |
| 92 VD.Msk1 RMB 1 mask byte 1 | |
| 93 VD.Msk2 RMB 1 mask byte 2 (00,55,AA,FF) | |
| 94 VD.MCol RMB 1 color? (C003,8001) | |
| 95 VD.MCol2 RMB 1 color | |
| 96 VD.PMask RMB 1 pixel mask for colors (i.e. $55, $CC etc) | |
| 97 VD.FF1 RMB 1 data for flood fill | |
| 98 VD.FF2 RMB 1 data for flood fill | |
| 99 VD.FFMsk RMB 1 flood fill mask | |
| 100 VD.FFFlg RMB 1 flood fill flag | |
| 101 VD.Palet RMB 16 (16) current palette values | |
| 102 VD.PlFlg RMB 1 initialized to $08 by L00DB, and then unused! | |
| 103 VD.NChar RMB 1 character to process | |
| 104 VD.NChr2 RMB 1 and the next one | |
| 0 | 105 |
| 106 * and RMB until we get 256 bytes reserved | |
|
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c07686556109
Added ifeq statements at top to allow for multiple use's of same def
boisy
parents:
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diff
changeset
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107 |
| 2024 | 108 ENDC |
|
373
c07686556109
Added ifeq statements at top to allow for multiple use's of same def
boisy
parents:
0
diff
changeset
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109 |