Search found 2 matches
- Thu Jun 30, 2022 6:29 pm
- Forum: ZX Spectrum Assembly Programming
- Topic: Question about lesson S2 - Easy Sprites on the ZX Spectrum
- Replies: 3
- Views: 3112
Re: Question about lesson S2 - Easy Sprites on the ZX Spectrum
Hello, I know a little assembler for the Z80. My question comes from looking at the GetScreenPos routine. I just don't get why the value %00111000 you are anding to the c value in the a register. Sure this is probably related to the way the screen is layed out , but t I don't understand why that val...
- Wed Jun 29, 2022 8:08 pm
- Forum: ZX Spectrum Assembly Programming
- Topic: Question about lesson S2 - Easy Sprites on the ZX Spectrum
- Replies: 3
- Views: 3112
Question about lesson S2 - Easy Sprites on the ZX Spectrum
Hello,
I am following the lesson and at the beginning on the routine labelled as 'GetScreenPos' I don't understand up to the 'ld e,a' statement. What is being done ?
Thanks,
Regards
I am following the lesson and at the beginning on the routine labelled as 'GetScreenPos' I don't understand up to the 'ld e,a' statement. What is being done ?
Thanks,
Regards