Platform Timex TS2068 - marinus-lab/z88dk GitHub Wiki
Introduction
This port is an improvement of the ZX Spectrum one, which already includes some automatic fix to solve the compatibility problems on the TS2068.
Most of the extra functionalities permit to take benefit of the extended video mode for text and graphics.
Please refer to the ZX Spectrum platform docs for further information about most of the available features (appmake, etc).
Command Line
Spectrum mode:
zcc +ts2068 -subtype=nohrg -create-app program.c
Extended mode:
zcc +ts2068 -create-app program.c
Omitting the -subtype option causes CRT_ORG_CODE to assigned the value 40000
-or-
zcc +ts2068 -clib=ansi -create-app program.c
Extended functions
Extra functionalities are available for such platform, notably the Sprite Pack 1 library supporting the 512x192 graphics resolution.
Math Libraries
The ROM calculator is supported by use of the -lm2068 library.
It should be noted that the ZX Maths libraries are of a lower precision than both genmath and math48 and are also less performant. As a trade off, the amount of memory used is much reduced.
ANSI Terminal
Using the ANSI terminal forces the use of hires mode. You may want to consider using the ANSI/gencon bridge to facilitate screen mode handling.
Generic console screen modes
The generic console supports switching between the Timex screen modes:
- Mode 0 = Standard ZX Screen mode (256x192)
- Mode 1 = Uses Time Screen 1 (256x192)
- Mode 2 = Timex High colour screen (256x192)
- Mode 6 = Timex Hires screen (512x192)
The colours for the hires mode can modified by OR (|) the following values with the mode value:
| Value | Colour |
|---|---|
| 0x00 | Black on white |
| 0x08 | Blue on yellow |
| 0x10 | Red on cyan |
| 0x18 | Magenta on green |
| 0x20 | Green on magenta |
| 0x30 | Yellow on blue |
| 0x38 | White on black |
Graphics
The graphics library is now integrated and supports all graphics modes, only change the screen mode using console_ioctl() - the ts_vmod() function cannot update the appropriate variable.