10 Commits

Author	SHA1	Message	Date
Clanmaster21	9cddaf1b59	String functions optimised (#86) ... * String functions optimised A few functions have been tweaked, but the biggest changes are in strlen, strskip and toWS, which take around two third of the cycles they used to (although strskip has more overhead). 10 bytes saved total. toWS had two bytes added inlining the isWS call, and a jump to unsetZ was inlined too, saving a byte. This saved 29 cycles, with the original function being 90 cycles. I looked at other uses of isWS and it's difficult to inline it effectively in every situation, so I haven't inlined it elsewhere. rdWS had a byte and two cycles saved by inlining a jump to unsetZ. strskip is the same size, with the loop cut down from 35 cycles to 21 cycles, but 18 cycles are added outside the loop. I expect one character strings are in the minority, so this should save cycles overall. strlen had 8 bytes saved, with the loop cut down from 38 cycles to 21 cycles, and 18 cycles removed outside the loop. * Fixed strskip Strskip wasn't preserving a properly. The new code uses the shadow af register, so whilst a byte and 4 cycles have been added outside the loop, it's safer and cleaner. The flags register isn't affected, but since the search goes for up to 64Kb I think it's safe to say the end of the string will always be reached. * Remove inlining of isWS	2020-01-09 20:10:27 -05:00
Virgil Dupras	346bcc3d3d	zasm: don't use lib/args ... This unit is being removed.	2019-12-29 20:56:13 -05:00
Virgil Dupras	4c07639808	basic: make cmd table more compact ... This shaves off quite a few bytes from the binary.	2019-11-30 21:36:34 -05:00
Virgil Dupras	1b01f13105	lib/expr: refactor for easier operator addition	2019-11-22 14:45:12 -05:00
Virgil Dupras	3f3dd9141e	basic: allow multiple args in print	2019-11-20 21:02:11 -05:00
Virgil Dupras	f5b04fc02f	basic: add expression support to print ... Again, same thing as in zasm.	2019-11-18 15:52:44 -05:00
Virgil Dupras	0bd58fd178	basic: parse hex, binary and char literals ... Same thing as in zasm.	2019-11-18 15:22:09 -05:00
Virgil Dupras	1cea6e71e0	basic: add a print cmd ... It can only print a decimal literal. But still, that's a big step because I hadn't implemented decimal formatting yet.	2019-11-18 13:40:23 -05:00
Virgil Dupras	8d46895dd3	lib/parse: decimal ending with a whitespace are now valid ... Also, make empty strings be parsed as invalid by parseDecimal.	2019-11-13 22:10:06 -05:00
Virgil Dupras	eefadc3917	ed: add support for 'a' and 'i'	2019-07-14 17:35:21 -04:00