RomWBW

3096 Commits

2 Branches

380 Tags

259 MiB

Tree: 9e757f859f

Commit Graph

Author	SHA1	Message	Date
b1ackmai1er	25a9ce046f	Option to move Fonts out of HBIOS area to ROM Bank 3 The FONTS_INLINE equate controls whether the fonts are included in the HBIOS area as per existing behaviour or whether they are placed in the currently unused ROM bank 3. In the case where we use bank 3 for font storage, the HBIOS is built with the font data located at 0x8000 onwards. The build process splits this off for relocation to the correct image position. Unlzsa, the TMS and VGA driver have been updated to access the font data from either location, whether compressed or not. Moving the font data to bank 3 results in significant savings in HBIOS space. If you are happy with this approach, I will continue developing and roll changes into other display drivers and do some hardware testing. Further on, as mentioned, I would like to look see if i can get the decompressor to decompress one byte at a time and move the CCP cache to bank 3 as well. Regards Phil	1 year ago

Author

SHA1

Message

Date

b1ackmai1er

25a9ce046f

Option to move Fonts out of HBIOS area to ROM Bank 3

The FONTS_INLINE equate controls whether the fonts are included in the HBIOS area as per existing behaviour or whether they are placed in the currently unused ROM bank 3.
In the case where we use bank 3 for font storage, the HBIOS is built with the font data located at 0x8000 onwards. The build process splits this off for relocation to the correct image position.  Unlzsa, the TMS and VGA driver have been updated to access the font data from either location, whether compressed or not.

Moving the font data to bank 3 results in significant savings in HBIOS space.

If you are happy with this approach, I will continue developing and roll changes into other display drivers and do some hardware testing.

Further on, as mentioned, I would like to look see if i can get the decompressor to decompress one byte at a time and move the CCP cache to bank 3 as well.

Regards Phil

1 year ago

1 Commits (9e757f859fb53e08994e2b562291bd52d672a074)