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73d797ce7e
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185 Commits

Author SHA1 Message Date
Roberto Ierusalimschy
73d797ce7e detail 
(order of 'OT' and 'IT' bits corresponds with macro 'opmode')
 2018-02-07 13:04:41 -02:00
Roberto Ierusalimschy
e2b15aa21d janitor work on casts 2018-01-28 13:13:26 -02:00
Roberto Ierusalimschy
5bd8d388de OP_CONCAT does not move its result (to simplify its execution) 2018-01-27 14:56:33 -02:00
Roberto Ierusalimschy
33e3774f44 keep more opcode arguments byte-aligned 2018-01-09 09:24:12 -02:00
Roberto Ierusalimschy
4676f6599e new macros 'isOT'/'isIT' 
(plus exchanged parameters of OP_VARARG to make it similar to other
'isOT' instructions)
 2017-12-22 12:16:46 -02:00
Roberto Ierusalimschy
d388c165ef new opcodes 'FORLOOP1'/'FORPREP1' for "basic for" (integer variable 
with increment of 1)
 2017-12-18 15:53:50 -02:00
Roberto Ierusalimschy
f8c1c1469a some cleaning on signed opcode parameters 2017-12-15 16:53:48 -02:00
Roberto Ierusalimschy
4b6928e7f5 (1 << 31) with signed integer has undefined behavior in C 2017-12-15 16:35:22 -02:00
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.)
 2017-12-13 16:32:09 -02:00
Roberto Ierusalimschy
c7ee7fe026 new opcodes OP_SHLI/OP_SHRI 2017-12-04 15:41:30 -02:00
Roberto Ierusalimschy
bdc751ce23 details (comments) 2017-11-30 11:16:43 -02:00
Roberto Ierusalimschy
19c6b375c3 detail (spacing) 2017-11-30 10:03:00 -02:00
Roberto Ierusalimschy
745eb41993 new opcodes OP_RETURN0/OP_RETURN1 2017-11-29 14:57:36 -02:00
Roberto Ierusalimschy
ff5fe51044 using register 'k' for conditions in tests (we only need one bit there) 2017-11-28 10:58:18 -02:00
Roberto Ierusalimschy
093c16b67b new opcodes 'OP_LTI' and 'OP_LEI' 2017-11-27 15:44:31 -02:00
Roberto Ierusalimschy
3c230cc825 using 'A' for register instead of 'B' in relational opcodes 
('R(A)' is already created by default for all instructions.)
 2017-11-22 17:15:44 -02:00
Roberto Ierusalimschy
41f2936d8f new opcode 'OP_EQI' for equality with immediate numbers 2017-11-22 16:41:20 -02:00
Roberto Ierusalimschy
4c0e36a46e new instruction 'OP_EQK' (for equality with constants) 2017-11-16 10:59:14 -02:00
Roberto Ierusalimschy
c3e5946fb2 new format for JUMP instructions (to allow larger offsets) 2017-11-07 15:20:42 -02:00
Roberto Ierusalimschy
a1ef58b3a5 eplicit 1-bit opcode operand 'k' 2017-10-04 18:56:32 -03:00
Roberto Ierusalimschy
8fbe9e3470 new opcodes with immediate integer operand for all arithmetic operations 2017-10-04 12:49:24 -03:00
Roberto Ierusalimschy
940472c75c opcode size increased to 7 bits 2017-10-02 19:51:32 -03:00
Roberto Ierusalimschy
bc1b0733b8 avoid the use of bit 'Bk' ('B' will lose this bit soon) 2017-10-01 16:13:43 -03:00
Roberto Ierusalimschy
722bdbe17d no more 'getBMode'-'getCMode' (imprecise + we will need more space 
for op mode) + better control of op modes
 2017-09-28 13:53:29 -03:00
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)
 2017-09-26 15:14:45 -03:00
Roberto Ierusalimschy
abb17cf19b new opcode OP_LOADF (load immediate float) 2017-09-19 15:38:14 -03:00
Roberto Ierusalimschy
e0c0e2ee14 comments (documentation about instruction formats) 2017-09-18 13:07:54 -03:00
Roberto Ierusalimschy
022e4427cf detail (keep OP_LOADK and OP_LOADKX together) 2017-09-15 11:19:06 -03:00
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)
 2017-09-13 16:50:08 -03:00
Roberto Ierusalimschy
ac65bab25f jumps in 'for' loops don't need to be signed 2017-08-14 15:33:14 -03:00
Roberto Ierusalimschy
07db10813c 'OP_VARARG' has the vararg parameter as an operand 2017-06-29 12:38:41 -03:00
Roberto Ierusalimschy
ab5a650029 details (direct access to 'Ck' bit in instructions) 2017-05-08 13:08:01 -03:00
Roberto Ierusalimschy
502a1d1108 new opcodes for table access with constant keys (strings and integers) 2017-04-28 17:57:45 -03:00
Roberto Ierusalimschy
173e41b2eb new opcode OP_ADDI (for immediate integer operand) (Experimental) 2017-04-26 14:46:52 -03:00
Roberto Ierusalimschy
cb3d5dce30 opcodes 'OP_GETTABUP'/'OP_SETTABUP' operate only with string keys, 
so they can use fast-track table access
 2017-04-24 17:26:39 -03:00
Roberto Ierusalimschy
6a98aa0bb0 new opcode LOADI (for loading immediate integers) 2017-04-20 16:53:55 -03:00
Roberto Ierusalimschy
0d1c6f4188 MAXINDEXRK can be redefined (for debugging, to force most values to 
go through registers)
 2016-07-19 14:12:21 -03:00
Roberto Ierusalimschy
bdf566a8a3 `name' in comments changed to 'name' 2014-10-25 09:50:46 -02:00
Roberto Ierusalimschy
b8d412aa07 error in comment 2014-10-20 16:29:55 -02:00
Roberto Ierusalimschy
1ea2d20f74 first implementation of '<<', '>>', and '~' (bitwise not) 2013-12-30 18:47:58 -02:00
Roberto Ierusalimschy
c0edab0f6d first implementation of bitwise operators '&' (band), '|' (bor), 
and '~' (bxor)
 2013-12-18 12:12:03 -02:00
Roberto Ierusalimschy
a948054a19 new order for binary operations (grouping them by type of result) 2013-12-16 17:06:52 -02:00
Roberto Ierusalimschy
a2f5c28a80 new operation '//' (integer division) 2013-04-26 10:08:29 -03:00
Roberto Ierusalimschy
32a12e2f3f detail (cleaned whitespaces at end of lines) 2011-07-15 09:50:29 -03:00
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.)
 2011-04-19 13:22:13 -03:00
Roberto Ierusalimschy
427ee519db new instruction OP_LOADKX (to replace OP_LOADK with extra argument) 2011-04-07 15:14:12 -03:00
Roberto Ierusalimschy
f8d677f94c no more 'OP_CLOSE' instructions (use jumps to close upvalues) 2011-02-07 10:28:27 -02:00
Roberto Ierusalimschy
dd547c55c8 new scheme to close upvalues in 'break'; jump instructions may 
do the close, avoiding the need for a OP_CLOSE instruction
 2011-02-01 16:03:10 -02:00
Roberto Ierusalimschy
d72ec210c7 POS_A replaced by POS_Ax (which is more "precise") 2010-10-25 10:24:55 -02:00
Roberto Ierusalimschy
f3026c36c2 details in opcode list 2010-10-13 13:45:54 -03:00