opensources/lua - lua - Gitea: Git with home nas server

Commit Graph

Author	SHA1	Message	Date
Roberto Ierusalimschy	0ddc0f47bd	Several details about 5.4.0 rc1 Corrected several small details: added 'const', adjusts in tabs x spaces, removed unused #includes and #defines, misspellings, etc.	5 years ago
Roberto Ierusalimschy	9b7987a9d1	OP_LOADFALSE broken in two instructions	5 years ago
Roberto Ierusalimschy	5ff408d218	Changed internal representation of booleans Instead of an explicit value (field 'b'), true and false use different tag variants. This avoids reading an extra field and results in more direct code. (Most code that uses booleans needs to distinguish between true and false anyway.)	5 years ago
Roberto Ierusalimschy	91dad09f65	Removed arithmetic opcodes with immediate operand The difference in performance between immediate operands and K operands does not seem to justify all those extra opcodes. We only keep OP_ADDI, due to its ubiquity and because the difference is a little more relevant. (Later, OP_SUBI will be implemented by OP_ADDI, negating the constant.)	5 years ago
Roberto Ierusalimschy	4518e5df24	Added macro 'testMMMode' Macro 'testMMMode' checks whether opcode is an MM opcode.	5 years ago
Roberto Ierusalimschy	df13f25948	First version of OP_MMBIN opcodes In arithmetic/bitwise operators, the call to metamethods is made in a separate opcode following the main one. (The main opcode skips this next one when the operation succeeds.) This change reduces slightly the size of the binary and the complexity of the arithmetic/bitwise opcodes. It also simplfies the treatment of errors and yeld/resume in these operations, as there are much fewer cases to consider. (Only OP_MMBIN/OP_MMBINI/OP_MMBINK, instead of all variants of all arithmetic/bitwise operators.)	5 years ago
Roberto Ierusalimschy	b80077b8f3	Change in the handling of 'L->top' when calling metamethods Instead of updating 'L->top' in every place that may call a metamethod, the metamethod functions themselves (luaT_trybinTM and luaT_callorderTM) correct the top. (When calling metamethods from the C API, however, the callers must preserve 'L->top'.)	5 years ago
Roberto Ierusalimschy	23e6bac8a0	Keep correct type for immediate operands in comparisons When calling metamethods for things like 'a < 3.0', which generates the opcode OP_LTI, the C register tells that the operand was converted to an integer, so that it can be corrected to float when calling a metamethod. This commit also includes some other stuff: - file 'onelua.c' added to the project - opcode OP_PREPVARARG renamed to OP_VARARGPREP - comparison opcodes rewritten through macros	6 years ago
Roberto Ierusalimschy	9b37a4695e	New semantics for the integer 'for' loop The numerical 'for' loop over integers now uses a precomputed counter to control its number of iteractions. This change eliminates several weird cases caused by overflows (wrap-around) in the control variable. (It also ensures that every integer loop halts.) Also, the special opcodes for the usual case of step==1 were removed. (The new code is already somewhat complex for the usual case, but efficient.)	6 years ago
Roberto Ierusalimschy	84e32ad2eb	Added opcodes for arithmetic with K operands Added opcodes for all seven arithmetic operators with K operands (that is, operands that are numbers in the array of constants of the function). They cover the cases of constant float operands (e.g., 'x + .0.0', 'x^0.5') and large integer operands (e.g., 'x % 10000').	6 years ago
Roberto Ierusalimschy	6e9b719694	More uniformity in code generation for 'for' loops Added new instruction 'OP_TFORPREP' to prepare a generic for loop. Currently it is equivalent to a jump (but with a format 'iABx', similar to other for-loop preparing instructions), but soon it will be the place to create upvalues for closing loop states.	6 years ago
Roberto Ierusalimschy	4cd1f4aac0	Towards "to closed" local variables Start of the implementation of "scoped variables" or "to be closed" variables, local variables whose '__close' (or themselves) are called when they go out of scope. This commit implements the syntax, the opcode, and the creation of the corresponding upvalue, but it still does not call the finalizations when the variable goes out of scope (the most important part). Currently, the syntax is 'local scoped name = exp', but that will probably change.	6 years ago
Roberto Ierusalimschy	f99509581e	Removed extra information from RCS keyword strings Version numbers and dates (mostly wrong) from RCS keyword strings removed from all source files; only the file name are kept.	6 years ago
Roberto Ierusalimschy	b08c9079c5	Opcode names moved to a new header file The array with the names of the opcodes was moved to a header file ('lopnames.h'), as it is not used by the Lua kernel. Files that need that array ('luac.c' and 'ltests.c') include the header file to get a private (static) copy.	6 years ago
Roberto Ierusalimschy	26eb144541	no need to define 'luaP_opnames' in regular builds	7 years ago
Roberto Ierusalimschy	03c6a05ec8	no more nil-in-table	7 years ago
Roberto Ierusalimschy	4a1612ff9b	new experimental syntax using reserved word 'undef'	7 years ago
Roberto Ierusalimschy	212095a601	new opcodes OP_GTI/OP_GEI	7 years ago
Roberto Ierusalimschy	0682fe8169	some simplifications/optimizations in returns from Lua functions	7 years ago
Roberto Ierusalimschy	b1379936cf	vararg back to '...' (but with another implementation) new implementation should have zero overhead for non-vararg functions	7 years ago
Roberto Ierusalimschy	318a9a5859	new opcode 'PREPVARARG' (avoids test for vararg function in all function calls)	7 years ago
Roberto Ierusalimschy	4676f6599e	new macros 'isOT'/'isIT' (plus exchanged parameters of OP_VARARG to make it similar to other 'isOT' instructions)	7 years ago
Roberto Ierusalimschy	d388c165ef	new opcodes 'FORLOOP1'/'FORPREP1' for "basic for" (integer variable with increment of 1)	7 years ago
Roberto Ierusalimschy	86431a2f1c	new opcodes BANDK/BORK/BXORK. (They do not use immediate operands because, too often, masks in bitwise operations are integers larger than one byte.)	7 years ago
Roberto Ierusalimschy	c7ee7fe026	new opcodes OP_SHLI/OP_SHRI	7 years ago
Roberto Ierusalimschy	745eb41993	new opcodes OP_RETURN0/OP_RETURN1	7 years ago
Roberto Ierusalimschy	093c16b67b	new opcodes 'OP_LTI' and 'OP_LEI'	7 years ago
Roberto Ierusalimschy	41f2936d8f	new opcode 'OP_EQI' for equality with immediate numbers	7 years ago
Roberto Ierusalimschy	4c0e36a46e	new instruction 'OP_EQK' (for equality with constants)	7 years ago
Roberto Ierusalimschy	c3e5946fb2	new format for JUMP instructions (to allow larger offsets)	7 years ago
Roberto Ierusalimschy	8fbe9e3470	new opcodes with immediate integer operand for all arithmetic operations	7 years ago
Roberto Ierusalimschy	722bdbe17d	no more 'getBMode'-'getCMode' (imprecise + we will need more space for op mode) + better control of op modes	7 years ago
Roberto Ierusalimschy	00e728af88	binary operators use R instead of RK faster + nobody uses RK(B), so B can be smaller (freeing one bit for more opcodes, soon)	7 years ago
Roberto Ierusalimschy	abb17cf19b	new opcode OP_LOADF (load immediate float)	7 years ago
Roberto Ierusalimschy	022e4427cf	detail (keep OP_LOADK and OP_LOADKX together)	7 years ago
Roberto Ierusalimschy	80d9b09f35	jumps do not close upvalues (to be faster and simpler); explicit instruction to close upvalues; command 'break' not handled like a 'goto' (to optimize removal of uneeded 'close' instructions)	7 years ago
Roberto Ierusalimschy	ac65bab25f	jumps in 'for' loops don't need to be signed	7 years ago
Roberto Ierusalimschy	07db10813c	'OP_VARARG' has the vararg parameter as an operand	7 years ago
Roberto Ierusalimschy	502a1d1108	new opcodes for table access with constant keys (strings and integers)	8 years ago
Roberto Ierusalimschy	173e41b2eb	new opcode OP_ADDI (for immediate integer operand) (Experimental)	8 years ago
Roberto Ierusalimschy	6a98aa0bb0	new opcode LOADI (for loading immediate integers)	8 years ago
Roberto Ierusalimschy	3317f5c6d9	includes 'stddef.h' (as it uses NULL)	10 years ago
Roberto Ierusalimschy	28fdbcf393	added include for 'lprefix.h', for stuff that must be added before any other header file	10 years ago
Roberto Ierusalimschy	1ea2d20f74	first implementation of '<<', '>>', and '~' (bitwise not)	11 years ago
Roberto Ierusalimschy	c0edab0f6d	first implementation of bitwise operators '&' (band), '\|' (bor), and '~' (bxor)	11 years ago
Roberto Ierusalimschy	a948054a19	new order for binary operations (grouping them by type of result)	11 years ago
Roberto Ierusalimschy	a2f5c28a80	new operation '//' (integer division)	12 years ago
Roberto Ierusalimschy	edfa9e007d	details (header comments)	13 years ago
Roberto Ierusalimschy	4758113043	change in opcode OP_LOADNIL: B is used as a counter instead of a register. (Avoids an assignment to R(B), not present in any other instruction.)	14 years ago
Roberto Ierusalimschy	c86586e866	small corrections in description of OP_TEST and OP_LOADKX	14 years ago

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96 Commits (819bd51d87b799fdee029754c660dc9a5587ef57)