Every generator has separate boilerplate for .h and .c, and their
differences are boring. All of them repeat the license note.
Reduce the repetition as follows. Move common text like the license
note to common open_output(), next to the existing common text there.
For each generator, replace the two separate descriptions by a single
one.
While there, emit an "automatically generated" note into generated
documentation, too.
Backports commit c263de3f419be945499ff7e6bd7512702f8bd522 from qemu
Since the commit af7a06bac7d3abb2da48ef3277d2a415772d2ae8:
`casa [..](10), .., ..` (and probably others alternate space instructions)
triggers a data access exception when the MMU is disabled.
When we enter get_asi(...) dc->mem_idx is set to MMU_PHYS_IDX when the MMU
is disabled. Just keep mem_idx unchanged in this case so we passthrough the
MMU when it is disabled.
Backports commit 6e10f37c86068e35151f982c976a85f1bec07ef2 from qemu
Using local m68k floatx80_getman(), floatx80_getexp(), floatx80_scale()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]
Backports commit 0d379c1709aa6b2d09dd3b493bfdf3a5fe6debcd from qemu
Since f3218a8 ("softfloat: add floatx80 constants")
floatx80_infinity is defined but never used.
This patch updates floatx80 functions to use
this definition.
This allows to define a different default Infinity
value on m68k: the m68k FPU defines infinity with
all bits set to zero in the mantissa.
Backports commit 0f605c889ca3fe9744166ad4149d0dff6dacb696 from qemu
Using a local m68k floatx80_mod()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]
The quotient byte of the FPSR is updated with
the result of the operation.
Backports commit 591596b77a1872d0652e666271ca055e57ea1e21 from qemu
Move fpu/softfloat-macros.h to include/fpu/
Export floatx80 functions to be used by target floatx80
specific implementations.
Exports:
propagateFloatx80NaN(), extractFloatx80Frac(),
extractFloatx80Exp(), extractFloatx80Sign(),
normalizeFloatx80Subnormal(), packFloatx80(),
roundAndPackFloatx80(), normalizeRoundAndPackFloatx80()
Also exports packFloat32() that will be used to implement
m68k fsinh, fcos, fsin, ftan operations.
Backports commit 88857aca93f6ec8f372fb9c8201394b0e5582034 from qemu
The integer size check was already outside of the opcode switch;
move the floating-point size check outside as well. Unify the
size vs index adjustment between fp and integer paths.
Backports commit 449f264b1749ac0e59c58bbc2eacdb3dc302c2bf from qemu
Add a Cortex-M33 definition. The M33 is an M profile CPU
which implements the ARM v8M architecture, including the
M profile Security Extension.
Backports commit c7b26382fee8b745c6e903c85281babf30c2cb7c from qemu
The Cortex-M33 allows the system to specify the reset value of the
secure Vector Table Offset Register (VTOR) by asserting config
signals. In particular, guest images for the MPS2 AN505 board rely
on the MPS2's initial VTOR being correct for that board.
Implement a QEMU property so board and SoC code can set the reset
value to the correct value.
Backports commit 38e2a77c9d6876e58f45cabb1dd9a6a60c22b39e from qemu
This includes FMOV, FABS, FNEG, FSQRT and FRINT[NPMZAXI]. We re-use
existing helpers to achieve this.
Backports commit c2c08713a6a5846bbe601d4d1b4f9708ba77efdc from qemu
This covers the encoding group:
Advanced SIMD scalar three same FP16
As all the helpers are already there it is simply a case of calling the
existing helpers in the scalar context.
Backports commit 7c93b7741b29b3ffda81a6e9525771b4409db99f from qemu
I only needed to do a little light re-factoring to support the
half-precision helpers.
Backports commit 5c36d89567cfd049a7c59ff219639f788225068f from qemu
Much like recpe the ARM ARM has simplified the pseudo code for the
calculation which is done on a fixed point 9 bit integer maths. So
while adding f16 we can also clean this up to be a little less heavy
on the floating point and just return the fractional part and leave
the calle's to do the final packing of the result.
Backports commit d719cbc7641991d16b891ffbbfc3a16a04e37b9a from qemu
Also removes a load of symbols that seem unnecessary from the header_gen script
It looks like the ARM ARM has simplified the pseudo code for the
calculation which is done on a fixed point 9 bit integer maths. So
while adding f16 we can also clean this up to be a little less heavy
on the floating point and just return the fractional part and leave
the calle's to do the final packing of the result.
Backports commit 5eb70735af1c0b607bf2671a53aff3710cc1672f from qemu
Neither of these operations alter the floating point status registers
so we can do a pure bitwise operation, either squashing any sign
bit (ABS) or inverting it (NEG).
Backports commit 15f8a233c8c023dbc77b6fe6cd7c79eac9bee263 from qemu
I re-use the existing handle_2misc_fcmp_zero handler and tweak it
slightly to deal with the half-precision case.
Backports commit 7d4dd1a73a023f75c893623710e43743501b318e from qemu
This adds the full range of half-precision floating point to integral
instructions.
Backports commit 6109aea2d954891027acba64a13f1f1c7463cfac from qemu
This actually covers two different sections of the encoding table:
Advanced SIMD scalar two-register miscellaneous FP16
Advanced SIMD two-register miscellaneous (FP16)
The difference between the two is covered by a combination of Q (bit
30) and S (bit 28). Notably the FRINTx instructions are only
available in the vector form.
This is just the decode skeleton which will be filled out by later
patches.
Backports commit 5d432be6fd6efe37833ac82623c3abd35117b421 from qemu
A bunch of the vectorised bitwise operations just operate on larger
chunks at a time. We can do the same for the new half-precision
operations by introducing some TWOHALFOP helpers which work on each
half of a pair of half-precision operations at once.
Hopefully all this hoop jumping will get simpler once we have
generically vectorised helpers here.
Backports commit 6089030c7322d8f96b54fb9904e53b0f464bb8fe from qemu
The helpers use the new re-factored muladd support in SoftFloat for
the float16 work.
Backports commit 5d265064cf30daaacce5a4ce9945fc573015fb5f from qemu
As some of the constants here will also be needed
elsewhere (specifically for the upcoming SVE support) we move them out
to softfloat.h.
Backports commit 026e2d6ef74000afb9049f46add4b94f594c8fb3 from qemu
Backports commit 2deb992b767d28035fac3b374c7730494ff0b43d from qemu
Also backports the fp16 changes introduced in commit f566c0474a9b9bbd9ed248607e4007e24d3358c0
These use the generic float16_compare functionality which in turn uses
the common float_compare code from the softfloat re-factor.
Backports commit d32adeae1a71a8e71374fa48d3d6ab0ad4c23e94 from qemu
The fprintf is only there for debugging as the skeleton is added to,
it will be removed once the skeleton is complete.
Backports commit 372087348d561e7f4051d7b32609bda417092ddf from qemu
This is the initial decode skeleton for the Advanced SIMD three same
instruction group.
The fprintf is purely to aid debugging as the additional instructions
are added. It will be removed once the group is complete.
Backports commit 376e8d6cda985df31c8561db4b7ea365b6fe6f87 from qemu
