Thanks! The assembly code looks very nice, I appreciate the use of macros as nice, organized subroutines.
Unfortunately, with my current setup, I'm having trouble running the compiled V1.0 app without seeing a distorted picture on my Quadra 800. This is 1 bit B&W, 640x480 resolution on Mac OS 8.1. V2.0 is crashing with a bus error at an address pointing to an AND.W call in ASMdycp64. I don't know enough about MacsBug to really understand the V2.0 crash better than that. Without MacsBug present, it's an error Type 10 that doesn't even allow me to reset Mac OS. Results are the same with extensions disabled.
I've also tried building both projects from source with CodeWarrior Pro 4. It didn't like the project files, as CodeWarrior 4 is too old for the IDE that comes with CWP4. I just create a new project, imported all source code files, and built with the same results as above. At least nothing else broke! Always a good sign.
I even tried pulling out most of the NuBus cards (except the ATTO SiliconExpress IV), all but 32 MB of RAM, all the VRAM, and the custom Dougg3 ROM to get this machine as close to stock as I could with 8.1 and all extensions disabled. Same problems with the V1.0 binary, no changes observed.
*phew*
It was worth a try. I'll let you know if I come up with any creative ideas, but in the meantime, I'll try to capture some cell phone camera footage.
Unfortunately, with my current setup, I'm having trouble running the compiled V1.0 app without seeing a distorted picture on my Quadra 800. This is 1 bit B&W, 640x480 resolution on Mac OS 8.1. V2.0 is crashing with a bus error at an address pointing to an AND.W call in ASMdycp64. I don't know enough about MacsBug to really understand the V2.0 crash better than that. Without MacsBug present, it's an error Type 10 that doesn't even allow me to reset Mac OS. Results are the same with extensions disabled.
I've also tried building both projects from source with CodeWarrior Pro 4. It didn't like the project files, as CodeWarrior 4 is too old for the IDE that comes with CWP4. I just create a new project, imported all source code files, and built with the same results as above. At least nothing else broke! Always a good sign.
I even tried pulling out most of the NuBus cards (except the ATTO SiliconExpress IV), all but 32 MB of RAM, all the VRAM, and the custom Dougg3 ROM to get this machine as close to stock as I could with 8.1 and all extensions disabled. Same problems with the V1.0 binary, no changes observed.
*phew*
It was worth a try. I'll let you know if I come up with any creative ideas, but in the meantime, I'll try to capture some cell phone camera footage.