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15 Commits

Author SHA1 Message Date
Daniel Beer 6740d7d98b simx: MSP430X simulator by Bruce Burns <bgb@alum.mit.edu> 2020-09-05 14:56:37 +12:00
Daniel Beer 4f6a845fb4 Fix operation size error in instruction decoding. 2019-03-28 14:26:28 +13:00
Daniel Beer 057ad4e5e5 dis: fix extension word decoding for PC-relative operands. 
We need to make sure that we perform the offset addition as a 20-bit
operation when an extension word is present.
 2014-05-05 09:39:39 +12:00
Daniel Beer 9c913ee1f6 dis: fix source symbolic mode decoding. 2013-05-27 09:10:51 +12:00
Daniel Beer da3b7e31a2 Partial revert of ce2e0a94f4. 
Jump instruction offsets are relative to start of instruction.
 2013-03-13 10:40:43 +13:00
Daniel Beer ce2e0a94f4 dis: correct offset for symbolic single-operand and jumps. 2013-02-25 15:40:03 +13:00
Daniel Beer e9b6a77414 dis/sim: fix handling of opcodes with two indexed operands. 
If the source operand is indexed, and the destination is symbolic (PC +
index), then the base for the destination index is the program counter
*after* having fetched the source index.

Also, the addition of the index is done modulo 2^16 if the base points
within the lower 64 kB of memory.
 2013-02-11 11:08:43 +13:00
Daniel Beer 65b2e94a2e dis: fix constant generation for single-operand. 
Indexed mode with R3 shouldn't consume an index word, because this is
the combination used for generating the constant #1.
 2013-01-15 11:47:50 +13:00
Peter A. Bigot fc336e78d0 Correct source bits shift offset for non-register extension word 2012-06-28 09:49:42 +12:00
Peter A. Bigot 19dfb6b64c Correct pushm.a count/register adjustment 
The adjustment was applied to the register instead of the count, causing
0x144b to decode as "PUSHM.A #4, R12".
 2012-06-28 09:49:42 +12:00
Peter A. Bigot 25f6df0d0f fix disassembly of 20-bit calla operands 2012-06-05 12:01:53 +12:00
Peter A. Bigot 8fe14ca1da Correct counts in disassembled rxxm/pushm/popm 2012-06-05 12:01:50 +12:00
Tamas TEVESZ d98d990752 Kill unused variables 
Mark those that are unused but can't be killed accordingly.
 2011-11-15 09:26:35 +13:00
Tamas TEVESZ 2fe1580843 Kill "unsigned op 0" comparisons 
- simio/simio.c, simio/simio_gpio.c, simio_timer.c, simio_tracer.c, util/dis.c

Kill unused variables

 - util/expr.c, util/output_util.c
 2011-11-13 16:46:33 +13:00
Daniel Beer d4fee98904 Restructuring: moved low-level utility code to util/ 2011-09-14 16:19:30 +12:00
Renamed from dis.c (Browse further)