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| author | Mike Frysinger <vapier@gentoo.org> | 2023-12-15 23:54:40 -0500 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2023-12-15 23:59:00 -0500 |
| commit | 82a398adb854dd602212e1007d76b187277b9823 (patch) | |
| tree | f0a78bc38989333e00abadf2ac80f9189c3b91ca /sim | |
| parent | 0fd9d0cec01437c8ca2951f3702be16123733442 (diff) | |
| download | gdb-82a398adb854dd602212e1007d76b187277b9823.zip gdb-82a398adb854dd602212e1007d76b187277b9823.tar.gz gdb-82a398adb854dd602212e1007d76b187277b9823.tar.bz2 | |
sim: sh: adjust some dsp insn masks
The pmuls encoding is incorrect -- it looks like a copy & paste error
from the padd pmuls variant. The SuperH software manual covers this.
On the flip side, the manual lists pwsb & pwad as insns that exist,
but no description of what they do, what the insn name means, or the
actual encoding. Our sim implementation stubs them both out as nops.
Let's mark the fields to avoid unused variable warnings.
Diffstat (limited to 'sim')
| -rw-r--r-- | sim/sh/gencode.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sim/sh/gencode.c b/sim/sh/gencode.c index 0a04e33..2522ec1 100644 --- a/sim/sh/gencode.c +++ b/sim/sh/gencode.c @@ -1915,7 +1915,7 @@ static op ppi_tab[] = "COMPUTE_OVERFLOW;", "greater_equal = 0;", }, - { "","", "pmuls Se,Sf,Dg", "0100eeffxxyygguu", + { "","", "pmuls Se,Sf,Dg", "0100eeff0000gg00", "res = (DSP_R (e) >> 16) * (DSP_R (f) >> 16) * 2;", "if (res == 0x80000000)", " res = 0x7fffffff;", @@ -2011,9 +2011,9 @@ static op ppi_tab[] = "COMPUTE_OVERFLOW;", "ADD_SUB_GE;", }, - { "","", "pwsb Sx,Sy,Dz", "10100100xxyyzzzz", + { "","", "pwsb Sx,Sy,Dz", "10100100....zzzz", }, - { "","", "pwad Sx,Sy,Dz", "10110100xxyyzzzz", + { "","", "pwad Sx,Sy,Dz", "10110100....zzzz", }, { "","", "(if cc) pabs Sx,Dz", "100010ccxx01zzzz", "/* FIXME: duplicate code pabs. */", |