Cameron Simpson wrote:
The 8080/8085 had jump to an absolute address, with or with out conditions, but did not have the jump relative that the Z80 did. So even for a jump of 126 bytes away, you had to use the 3 byte jump instructions.On 02Jun2008 02:09, Gene Heskett <gene heskett verizon net> wrote:| Jump tables scattered around in your code, taking up valuable space cuz the | darned thing doesn't have a conditional long branch ability, just for starters.Hmm. I don't seem to recall needing jump tables, but perhaps my code was smaller than yours. In fact, I've got some z80 code right here [...] The long jump JP command allows conditionals. The 8080 might not have; I never used that, either. I did have a Z80 macro for measuring the length of the jump and using a JR instead of a JP where possible, but JPs definitely allowed conditions.
Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
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