rose.joseph12's articles:

Items(24) /3 Next >> Last >|

Aux Memory access on Apple 2e? 9 27 (8/13/2012 1:07:17 PM) comp.sys.apple2 I understand that there is a memory conflict between ProDOS and aux memory = in that ProDOS uses aux memory as a RAM drive. I really want to use the me= mory for expanded memory on cc65. Cc65 already has su... Harry

WinXP portable on-demand drive compession? 16 50 (7/5/2012 1:09:53 PM) comp.compression I go to a program during the day. There, I'm not allowed to install or dow= nload anything on the computers or use flash drives. I am limited to flopp= ies and a CD-RW for all my software. Unfortunately, s... Harry

Apple 2 Dev Newbie Wannabe! 19 33 (6/17/2012 1:04:13 AM) comp.sys.apple2 I am interested in Apple 2 programming. I am familiar with Commodore compu= ter programming, including assembler. I have cc65 for cross-platform progr= amming. I have a book on Applesoft programming. I re... Harry

C128 Function ROMs Creation? 0 28 (4/30/2012 1:14:45 PM) comp.sys.cbm I have some understanding about creating C128 function ROMs, including C128= memory maps, the C128 PRG, and limited ROM identification/jump vectors. I= want to create a cc65 library to handle programs on ROM... Harry

Compression update: I failed! :( 14 51 (4/28/2012 2:42:44 PM) comp.compression As some of you migt already know, I've been working on file compression or = some time now. I' been working hard and tweaking it every way possible to = no avail. My first goal was to produce the best general... Harry

C64 Delay w/out cycle-counting? 1 76 (3/27/2012 1:54:29 PM) comp.sys.cbm How do I, using the VBLANK interrupt, a CIA-based interrupt, a VIC-II interrupt, or in fact any method other than a number-based loop, pause for a period of time such that, for example, a game or graphics demo ... Harry

OT: Calculating advanced math functions? 11 47 (3/27/2012 1:29:45 PM) comp.sys.cbm Sorry about the OT question, but this is for a C64 demo. I need to know how to calculate SIN, SQR, EXP, LOGx and any other functions that would be useful for graphics. The C64 is only an 8-bit computer and wo... Harry

Missing C64 .CRT Info 0 54 (3/27/2012 1:22:45 PM) comp.sys.cbm I have some documentation on C64 emulators' .CRT format. However, there are holes in the documentation. Specifically, the following cartridge formats contain the memory format but not how to program the cartr... Harry

CBMImg: Good Idea? 3 32 (3/10/2012 1:22:03 PM) comp.sys.cbm I want to create a console tool for C64 emulation that competes with cbmcon= vert. Cbmconvert is good, and I use it alot for my programming, but it lac= ks some features, i.e. rename, dir, scratch, create with... Harry

News on my file compression 3 52 (3/2/2012 5:27:16 PM) comp.compression I'm happy. :) So far, I'm doing better than the .ZIP deflate technique. I am trying to find another approach to increase the compression ratio. Then I'll start debugging. -- Jseh Rose, a.k.a. Harry Potter W... Harry

rose.joseph12's replies:

Items(18) /2 Next >> Last >|

New Compression Technique: What to Do? 28 35 (12/19/2011 4:03:06 PM) comp.compression I recently discovered a new compression technique. On its own, it seems to be okay. It can even provide a good compression ratio for files already compresed. However, with LZW, I lose some compressibility, r... rose.joseph12 (88)

Is compresssion bug ANSI mode used for Binary files? 6 27 (1/4/2012 7:34:57 PM) comp.compression As I said before, I am working on file compression. I disabled all compression code to test the compression structure and debugged it that way. I have text files smaller than the 8k memory buffer compressing ... rose.joseph12 (88)

Predicting the size of a Huffman block? 10 44 (2/8/2012 2:18:13 PM) comp.compression That's pretty much it: Given the number of occuring symbols and the length of the file or data to be compressed, how do I estimate the size of the output? I have to do this quickly on 8-bit, 16-bit and 32- bit... rose.joseph12 (88)

News on my file compression 3 52 (3/2/2012 5:27:16 PM) comp.compression I'm happy. :) So far, I'm doing better than the .ZIP deflate technique. I am trying to find another approach to increase the compression ratio. Then I'll start debugging. -- Jseh Rose, a.k.a. Harry Potter W... rose.joseph12 (88)

CBMImg: Good Idea? 3 32 (3/10/2012 1:22:03 PM) comp.sys.cbm I want to create a console tool for C64 emulation that competes with cbmcon= vert. Cbmconvert is good, and I use it alot for my programming, but it lac= ks some features, i.e. rename, dir, scratch, create with... rose.joseph12 (88)

OT: Calculating advanced math functions? 11 47 (3/27/2012 1:29:45 PM) comp.sys.cbm Sorry about the OT question, but this is for a C64 demo. I need to know how to calculate SIN, SQR, EXP, LOGx and any other functions that would be useful for graphics. The C64 is only an 8-bit computer and wo... rose.joseph12 (88)

Compression update: I failed! :( 14 51 (4/28/2012 2:42:44 PM) comp.compression As some of you migt already know, I've been working on file compression or = some time now. I' been working hard and tweaking it every way possible to = no avail. My first goal was to produce the best general... rose.joseph12 (88)

Apple 2 Dev Newbie Wannabe! 19 33 (6/17/2012 1:04:13 AM) comp.sys.apple2 I am interested in Apple 2 programming. I am familiar with Commodore compu= ter programming, including assembler. I have cc65 for cross-platform progr= amming. I have a book on Applesoft programming. I re... rose.joseph12 (88)

WinXP portable on-demand drive compession? 16 50 (7/5/2012 1:09:53 PM) comp.compression I go to a program during the day. There, I'm not allowed to install or dow= nload anything on the computers or use flash drives. I am limited to flopp= ies and a CD-RW for all my software. Unfortunately, s... rose.joseph12 (88)

Aux Memory access on Apple 2e? 9 27 (8/13/2012 1:07:17 PM) comp.sys.apple2 I understand that there is a memory conflict between ProDOS and aux memory = in that ProDOS uses aux memory as a RAM drive. I really want to use the me= mory for expanded memory on cc65. Cc65 already has su... rose.joseph12 (88)