Timeline for What is 'unsigned char near'?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 19, 2018 at 17:50 | vote | accept | oppo | ||
| Apr 17, 2018 at 13:13 | comment | added | Chromatix | More or less. The difference is mainly due to the fact that 8-bit CPUs typically don't have a register bank per se, only a single accumulator and a couple of index registers. But it's also analogous to the use of "near" vs. "far" pointers on x86, in that there is a difference in the size of the address and how long it takes to complete an access. | |
| Apr 17, 2018 at 4:24 | comment | added | vsz |
So, its usage is very similar to the register keyword (for cases where you are really sure that this is where you need optimization), but slightly less extreme?
|
|
| Apr 17, 2018 at 1:30 | comment | added | Clonkex | Nice, much better! | |
| Apr 17, 2018 at 1:27 | comment | added | Chromatix | I edited the answer to provide more detail and references. In fact it's from Freescale's newer HCS08 architecture, but this is code-compatible with the older HC08 and HC05 architectures. The (now positively ancient) 6800 and 6502 architectures are also closely related. | |
| Apr 17, 2018 at 1:25 | history | edited | Chromatix | CC BY-SA 3.0 |
added 589 characters in body
|
| Apr 17, 2018 at 0:37 | comment | added | Clonkex | I like this answer, but do you have a source for your information? | |
| Apr 16, 2018 at 15:25 | history | answered | Chromatix | CC BY-SA 3.0 |