mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-11-19 12:32:35 +00:00
| .. | ||
| music | ||
| a2.scrolltext | ||
| checkerboard_lookup.s | ||
| credits.s | ||
| deater.scrolltext | ||
| interrupt_handler.s | ||
| island_lookup.s | ||
| island_map.inc | ||
| Makefile | ||
| mode7_decompress.s | ||
| mode7_demo_backgrounds.inc | ||
| mode7_demo.dsk | ||
| mode7_demo.s | ||
| mode7.s | ||
| out.krg | ||
| rasterbars.s | ||
| README.mode7_demo | ||
| sprites.inc | ||
| starfield_demo.s | ||
| starry_sky.scroll | ||
| TODO | ||
| vmw_logo.inc | ||
| zp.inc | ||
Plan:
Load at $1000
Decompress to $2000
Memory Map
==========
(not to scale)
-------- $ffff
| ROM/IO |
-------- $c000
| | 32k decompress
-------- $4000
| load | 8k
-------- $2000
| free |
-------- $1c00
| Scroll |
| Data |
-------- $1800
|Multiply|
| Tables |
-------- $1000
|GR pg 2 | 1k
|-------- $0c00
|GR pg 1 | 1k
|-------- $0800
|GR pg 0 | 1k
-------- $0400
| | 0.5
-------- $0200
| stack | 0.25
-------- $0100
|zero pg | 0.25
------- $0000
=============================================
Getting the VMW logo to appear on page2 HGR
==============================================
; Need to have lines at
; $4000 AA,AD,D5,AC,95
; $4400 A8,D5,95,35,85 1k
; $4800 A0,55,26,55,81 2k
; $4C00 00,00,00,00,00 3k
MAIN: 0000 - 013A = 0x13A = 314
.include "deater.scrolltext" 13DF - 1577 = 0x198 = 408
.include "a2.scrolltext" 1577 - 1695 = 0x11E = 286
=============
1008
.include "starfield_demo.s" 1695 - 19Ac = 0x317 = 791
.include "rasterbars.s" 19AC - 1A9E = 0xF2 = 242
=============
1033
.include "../asm_routines/gr_fast_clear.s" 01B6 - 02A0 = 0xEA = 234
.include "credits.s" 1A9E - 1CEA = 0x257 = 599
.include "interrupt_handler.s" 1CEA - 1DE3 = 0xD9 = 217
===================
1050
3D (61) too many, want 173
.include "../asm_routines/gr_unrle.s" 013A - 01B6
.include "../asm_routines/gr_hlin.s" 02A0 - 02FD
.include "../asm_routines/gr_setpage.s" 02FD - 0311
.include "../asm_routines/pageflip.s" 0311 - 032B
.include "../asm_routines/gr_fade.s" 032B - 0459
.include "../asm_routines/gr_copy.s" 0459 - 0491
.include "../asm_routines/gr_scroll.s" 0491 - 0565 = 0xC5 = 197
.include "../asm_routines/gr_offsets.s" 0565 - 0595
.include "../asm_routines/gr_plot.s" 0595 - 05C7
.include "../asm_routines/text_print.s" 05C7 - 060F
.include "../asm_routines/mockingboard_a.s" 060F - 06BC = 0xAD = 173
.include "mode7.s" 06BC - 1201 = 0xB43 = 2883
.include "mode7_demo_backgrounds.inc" 1201 - 13DF = 0x1DE = 478