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138 commits

Author SHA1 Message Date
Richard Henderson 797e5d44e9
target-m68k: Implement bitfield ops for memory 
Backports commit f2224f2c9a9ed63edaed77ae21ffb1e501d7f247 from qemu
 2018-03-01 19:07:06 -05:00
Richard Henderson 4f481b2c5a
target-m68k: Implement bitfield ops for registers 
Backports commit ac815f46a325b5dabe2ebd6561e4244767c0a603 from qemu
 2018-03-01 18:58:47 -05:00
Laurent Vivier 5d4a5e9ba7
target-m68k: free TCG variables that are not 
This is a cleanup patch. It adds call to tcg_temp_free()
when it is missing.

Backports commit 2b5e2170678af36df48ab4b05dff81fe40b41a65 from qemu
 2018-03-01 12:27:43 -05:00
Laurent Vivier 74beed5a4d
target-m68k: add rol/ror/roxl/roxr instructions 
Backports commit 0194cf31cfc84516d10eca354146673150e10410 from qemu
 2018-03-01 12:21:02 -05:00
Richard Henderson cf9424d60d
target-m68k: Inline shifts 
Also manage word and byte operands and fix the computation of
overflow in the case of M68000 arithmetic shifts.

Backports commit 367790cce8e14131426f5190dfd7d1bdbf656e4d from qemu
 2018-03-01 12:11:10 -05:00
Richard Henderson 0c00b036be
target-m68k: Do not cpu_abort on undefined insns 
Report this properly via exception and, importantly, allow
the disassembler the chance to tell us what insn is not handled.

Backports commit 72d2e4b6a437f11f97d3138f6b2ec177b78210c7 from qemu
 2018-03-01 12:02:39 -05:00
Laurent Vivier 90b0b6d867
target-m68k: Implement 680x0 movem 
680x0 movem can load/store words and long words and can use more
addressing modes. Coldfire can only use long words with (Ax) and
(d16,Ax) addressing modes.

Backports commit 7b542eb96d7d5d9266a9c0425f05d49c8e6df2f9 from qemu
 2018-03-01 12:01:46 -05:00
Laurent Vivier 2d318da080
target-m68k: add cas/cas2 ops 
Implement CAS using cmpxchg.
Implement CAS2 using helper and either cmpxchg when
the 32bit addresses are consecutive, or with
parallel_cpus+cpu_loop_exit_atomic() otherwise.

Backports commit 14f944063affbcc7bd6df42b060793dbfee8a822 from qemu
 2018-03-01 11:56:26 -05:00
Laurent Vivier f602f9d40c
target-m68k: add abcd/sbcd/nbcd 
Backports commit fb5543d820018a46b713911e7653594be727ca98 from qemu
 2018-03-01 11:51:49 -05:00
Laurent Vivier 90b87b3580
target-m68k: add 680x0 divu/divs variants 
Update helper to set the throwing location in case of div-by-0.
Cleanup divX.w and add quad word variants of divX.l.

Backports commit 0ccb9c1d8128a020720d5c6abf99a470742a1b94 from qemu
 2018-03-01 11:42:30 -05:00
Laurent Vivier 77b8b2f3b8
target-m68k: add 680x0 divu/divs variants 
Update helper to set the throwing location in case of div-by-0.
Cleanup divX.w and add quad word variants of divX.l.

Backports commit 0ccb9c1d8128a020720d5c6abf99a470742a1b94 from qemu
 2018-03-01 11:38:53 -05:00
Laurent Vivier f3990e8f87
target-m68k: add 64bit mull 
Backports commit 8be95defd6ab10d2c9f986879a0afa82417cb8e5 from qemu
 2018-03-01 11:32:59 -05:00
Laurent Vivier e1c7d37556
target-m68k: add cmpm 
Backports commit 817af1c72d227fd5759ef882bef61acee40679b1 from qemu
 2018-03-01 11:29:35 -05:00
Richard Henderson e6ca471dda
target-m68k: Split gen_lea and gen_ea 
Provide gen_lea_mode and gen_ea_mode, where the mode can be
specified manually, rather than taken from the instruction.

Backports commit f84aab269ddab8509b77408b886e9071bf5c48fb from qemu
 2018-03-01 11:27:43 -05:00
Richard Henderson 5541553e8d
target-m68k: Delay autoinc writeback 
Backports commit 8a1e52b69d2cd1c633f3c473a213d575931bf46d from qemu
 2018-03-01 11:18:36 -05:00
Laurent Vivier 7055c38183
target-m68k: fix muluw/mulsw 
"The multiplier and multiplicand are both word operands, and the result
is a long-word operand."

So compute flags on a long-word result, not on a word result.

Backports commit 4a18cd44f3c905d443c26e26bb9b09932606d1a3 from qemu
 2018-03-01 08:59:42 -05:00
Laurent Vivier 527c68f40e
target-m68k: Fix cmpa operand size 
"The size of the operation can be specified as word or long.
Word length source operands are sign-extended to 32 bits for
comparison."

So comparison is always done using OS_LONG.

Backports commit 5436c29d78957a6825a93f0eb79dfab388641017 from qemu
 2018-03-01 08:58:59 -05:00
Laurent Vivier 69687e1824
target-m68k: fix EXG instruction 
opcodes of "EXG Ax,Ay" and "EXG Dx,Dy" have been swapped

Backports commit c090c97d925ce751d8834d5c5a404952598f67c0 from qemu
 2018-03-01 08:57:45 -05:00
Laurent Vivier 5daf91ea48
target-m68k: immediate ops manage word and byte operands 
Backports commit 92c62548f69cb4ba739d7d046e9caf9ea75753e4 from qemu
 2018-02-28 08:42:22 -05:00
Laurent Vivier f7c29f73b3
target-m68k: cmp manages word and bytes operands 
Backports commit ff99b952c8280853801fe14f7ae62d0f87464f7d from qemu
 2018-02-28 08:37:46 -05:00
Laurent Vivier fc28e8127f
target-m68k: add/sub manage word and byte operands 
Backports commit 8a370c6cb770b618f7eb66628116c25e84588df8 from qemu
 2018-02-28 07:18:25 -05:00
Laurent Vivier bc27695926
target-m68k: add addressing modes to neg 
Backports commit 227de713e0f4224a82c32991b4e4c4973381426b from qemu
 2018-02-28 07:07:28 -05:00
Laurent Vivier 3558b93f11
target-m68k: introduce byte and word cc_ops 
Backports commit db3d7945ae7992c91cc5705dccf60fec79b24dc4 from qemu
 2018-02-28 06:52:16 -05:00
Laurent Vivier 4e257ffda9
target-m68k: some bit ops cleanup 
Backports commit 3c980d2ef664e6d5a1a0c98aca4d11d33b17ca59 from qemu
 2018-02-28 01:25:58 -05:00
Laurent Vivier cfab571859
target-m68k: suba/adda can manage word operand 
Backports commit 415f4b62eb4629bd3702e6fb8aa51437a92983ff from qemu
 2018-02-28 01:20:23 -05:00
Laurent Vivier 99c297efe3
target-m68k: and can manage word and byte operands 
Backports commit 52dc23c5956159a79a4e2d4193e44d2c4cf3883c from qemu
 2018-02-28 01:19:02 -05:00
Laurent Vivier 41372b0cc9
target-m68k: or can manage word and byte operands 
Backports commit 020a4659208a6f9a985881504fd4d3b44ab589be from qemu
 2018-02-28 01:15:27 -05:00
Laurent Vivier e140aac281
target-m68k: eor can manage word and byte operands 
Backports commit eec37aec85af9f5fd59b534d20c86a775b8e7973 from qemu
 2018-02-28 01:05:21 -05:00
Laurent Vivier bc52777b00
target-m68k: add addressing modes to not 
Backports commit ea4f2a844132c81f1e6b51fed7019686ce4e3bc5 from qemu
 2018-02-28 01:03:38 -05:00
Richard Henderson 549e31cc72
target-m68k: Inline addx, subx, negx 
And add opcodes for 680x0

Backports commit a665a820e5d46b1611f409fbc7a540fe1c6bf5c8 from qemu
 2018-02-28 01:02:31 -05:00
Laurent Vivier b796f934ff
target-m68k: add dbcc 
Backports commit beff27ab3a60d8abab4a166670ca79b3c0970005 from qemu
 2018-02-28 00:45:39 -05:00
Laurent Vivier 977c3fe6c4
target-m68k: add addressing modes to scc 
Backports commit d5a3cf33f2f65069d2f79a6e349f0d8140f02bb4 from qemu
 2018-02-28 00:43:30 -05:00
Laurent Vivier 77b1754376
target-m68k: add exg ops 
Backports commit 29cf437da4eeacb46cd7076014d06c85ca47c91d from qemu
 2018-02-28 00:37:41 -05:00
Laurent Vivier 56882899be
target-m68k: add linkl 
Backports commit c630e436c0ed3adc3a858c328119daf6d1b3357f from qemu
 2018-02-28 00:31:27 -05:00
Laurent Vivier 59d6a1a744
target-m68k: add bkpt instruction 
Backports commit 71600eda7cc48f03ea306bc69ed7e52ef1d9dd91 from qemu
 2018-02-28 00:29:41 -05:00
Richard Henderson 4168095fed
target-m68k: Optimize gen_flush_flags 
Backports commit 36f0399d46f2ccf4f6e7451ba46b1e8d0e9ab341 from qemu
 2018-02-27 10:19:54 -05:00
Richard Henderson 7403e63f2f
target-m68k: Optimize some comparisons 
Backports commit 9d896621c1820fd8f437fac26fd7d2e0921091c3 from qemu
 2018-02-27 10:15:20 -05:00
Richard Henderson 672a28173f
target-m68k: Use setcond for scc 
Backports commit b459e3eccfae7fe83e30187c391de00bccf4f51d from qemu
 2018-02-27 10:11:35 -05:00
Richard Henderson ed6feb9329
target-m68k: Introduce DisasCompare 
Backports commit 6a432295d73df91890dc70c4a94dcc4ba88ad1c3 from qemu
 2018-02-27 10:08:32 -05:00
Richard Henderson 4e498cc54d
target-m68k: Reorg flags handling 
Separate all ccr bits. Continue to batch updates via cc_op.

Backports commit 620c6cf66584bfbee90db84a7e87a6eabf230ca9 from qemu
 2018-02-27 10:02:02 -05:00
Richard Henderson 121309a4d0
target-m68k: Reorg flags handling 
Separate all ccr bits. Continue to batch updates via cc_op.

Signed-off-by: Richard Henderson <rth@twiddle.net>

Fix gen_logic_cc() to really extend the size of the result.
Fix gen_get_ccr(): update cc_op as it is used by the helper.
Factorize flags computing and src/ccr cleanup

Backports commit 620c6cf66584bfbee90db84a7e87a6eabf230ca9 from qemu
 2018-02-27 09:30:32 -05:00
Richard Henderson 61ab9a42cd
target-m68k: Remove incorrect clearing of cc_x 
The CF docs certainly doesnt suggest this is true.

Backports commit 18dd87f26bed46f22bb1b9536329c02de500f407 from qemu
 2018-02-27 09:21:26 -05:00
Richard Henderson 187c2a9807
target-m68k: Some fixes to SR and flags management 
Backports commit 99c514485b1d7922c4ca1ed767fd45525de4701f from qemu
 2018-02-27 09:19:21 -05:00
Richard Henderson 9493b29399
target-m68k: Print flags properly 
Backports commit 8e394ccabdb1e439aab092de6b9d2f26432e962f from qemu
 2018-02-27 09:17:44 -05:00
Laurent Vivier 57ea90a91f
target-m68k: update CPU flags management 
Copied from target-i386

Backports commit 9fdb533fb129b19610941bd1e5dd93e7471a18f5 from qemu
 2018-02-27 09:15:29 -05:00
Laurent Vivier 125675e334
target-m68k: don't update cc_dest in helpers 
Backports commit 91f90d7191f862ab27528dbdf76cee55c77f79cf from qemu
 2018-02-27 09:04:51 -05:00
Laurent Vivier 12f9ba3fe4
target-m68k: update move to/from ccr/sr 
Backports commit 7c0eb318bdcc3667a861e7b0f140df0b6d9895e2 from qemu
 2018-02-27 08:57:05 -05:00
Laurent Vivier b8366d5b31
target-m68k: remove m68k_cpu_exec_enter() and m68k_cpu_exec_exit() 
Update cc_op directly from tcg_gen_insn_start() and
restore_state_to_opc()

Copied from target-i386

Backports commit 20a8856eba0980fbe9d2b8ed2b33ecdb9c9fe5ad from qemu
 2018-02-27 08:53:02 -05:00
Laurent Vivier a521f4f41d
target-m68k: Replace helper_xflag_lt with setcond 
Backports commit f9083519034aaa5ad5cd2c5727bd61c29bf60bc5 from qemu
 2018-02-27 08:50:44 -05:00
Laurent Vivier b079255576
target-m68k: allow to update flags with operation on words and bytes 
Backports commit 5dbb6784b7e2b833c036b4df58aa07067e35f476 from qemu
 2018-02-27 08:47:12 -05:00