| Line 1... |
Line 1... |
2010/11/22 - Fixed Video component, and increased vram to accomodate 80x40 resolution
|
2010/11/22 - Fixed Video component, and increased vram to accommodate 80x40 resolution
|
- Developed the basic io libs for SDCC for Z80SoC: crt0.s, putchar.c and getchar.c
|
- Developed the basic io libs for SDCC for Z80SoC: crt0.s, putchar.c and getchar.c
|
- ROM design has been implemented using coregen, and has now 16k
|
- ROM design has been implemented using coregen, and has now 16k
|
- ram size changed to 12Kb for S3E and 40Kb for DE1
|
- ram size changed to 12Kb for S3E and 40Kb for DE1
|
- Slight changes in memory layout (see readme for memory layout)
|
- Slight changes in memory layout (see readme for memory layout)
|
- New rom developed in C (SDCC)
|
- New rom developed in C (SDCC)
|
- Released C library for Z80SoC development usingg SDCC
|
- Released C library for Z80SoC development usingg SDCC
|
|
|
2010/02/26 - Modified RAM layout (again) to accomodate new features
|
2010/02/26 - Modified RAM layout (again) to accommodate new features
|
- Characters patern are now in RAM and can be redefined by the user
|
- Characters pattern are now in RAM and can be redefined by the user
|
- Video screen can now be configured up tp 40 rows by 80 columns
|
- Video screen can now be configured up tp 40 rows by 80 columns
|
- Characters can have double pixels (useful when width is less than 40 chars)
|
- Characters can have double pixels (useful when width is less than 40 chars)
|
- Memory cores was redefined, RAM is now 24K
|
- Memory cores was redefined, RAM is now 24K
|
- Modified top module and video module to accomodate new memory cores
|
- Modified top module and video module to accommodate new memory cores
|
- ROM demo modified to demonstrate char definition (redefine char "A")
|
- ROM demo modified to demonstrate char definition (redefine char "A")
|
|
|
2008/05/24 - Modified RAM layout to support new and future improvements
|
2008/05/24 - Modified RAM layout to support new and future improvements
|
- Added port 0x90 to write a character to video.
|
- Added port 0x90 to write a character to video.
|
- Cursor x,y automatically updated after writing to port 0x90
|
- Cursor x,y automatically updated after writing to port 0x90
|
