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2003-07-25 Michael Snyder <msnyder@redhat.com>

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* gencode.c (pshl): Change < to <= (shift by 16 is allowed).
        Cast argument of >> to unsigned to prevent sign extension.
        (psha): Change < to <= (shift by 32 is allowed).
This commit is contained in:
Michael Snyder 2003-07-25 23:52:43 +00:00
parent 8e8c182c83
commit 437b0e60a1
2 changed files with 12 additions and 6 deletions
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6
sim/sh/ChangeLog
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@ -1,3 +1,9 @@
2003-07-25 Michael Snyder <msnyder@redhat.com>
* gencode.c (pshl): Change < to <= (shift by 16 is allowed).
Cast argument of >> to unsigned to prevent sign extension.
(psha): Change < to <= (shift by 32 is allowed).
2003-07-24 Michael Snyder <msnyder@redhat.com> 2003-07-24 Michael Snyder <msnyder@redhat.com>
* gencode.c: Fix typo in comment. * gencode.c: Fix typo in comment.

12
sim/sh/gencode.c
View File

@ -1306,10 +1306,10 @@ op ppi_tab[] =
{ "","", "pshl #<imm>,dz", "00000iiim16.zzzz", { "","", "pshl #<imm>,dz", "00000iiim16.zzzz",
"int Sz = DSP_R (z) & 0xffff0000;", "int Sz = DSP_R (z) & 0xffff0000;",
"", "",
"if (i < 16)", "if (i <= 16)",
" res = Sz << i;", " res = Sz << i;",
"else if (i >= 128 - 16)", "else if (i >= 128 - 16)",
" res = Sz >> 128 - i;", " res = (unsigned) Sz >> 128 - i; /* no sign extension */",
"else", "else",
" {", " {",
" RAISE_EXCEPTION (SIGILL);", " RAISE_EXCEPTION (SIGILL);",
@ -1323,7 +1323,7 @@ op ppi_tab[] =
"int Sz = DSP_R (z);", "int Sz = DSP_R (z);",
"int Sz_grd = GET_DSP_GRD (z);", "int Sz_grd = GET_DSP_GRD (z);",
"", "",
"if (i < 32)", "if (i <= 32)",
" {", " {",
" if (i == 32)", " if (i == 32)",
" {", " {",
@ -1525,10 +1525,10 @@ op ppi_tab[] =
"int Sx = DSP_R (x) & 0xffff0000;", "int Sx = DSP_R (x) & 0xffff0000;",
"int Sy = DSP_R (y) >> 16 & 0x7f;", "int Sy = DSP_R (y) >> 16 & 0x7f;",
"", "",
"if (Sy < 16)", "if (Sy <= 16)",
" res = Sx << Sy;", " res = Sx << Sy;",
"else if (Sy >= 128 - 16)", "else if (Sy >= 128 - 16)",
" res = Sx >> 128 - Sy;", " res = (unsigned) Sx >> 128 - Sy; /* no sign extension */",
"else", "else",
" {", " {",
" RAISE_EXCEPTION (SIGILL);", " RAISE_EXCEPTION (SIGILL);",
@ -1541,7 +1541,7 @@ op ppi_tab[] =
"int Sx_grd = GET_DSP_GRD (x);", "int Sx_grd = GET_DSP_GRD (x);",
"int Sy = DSP_R (y) >> 16 & 0x7f;", "int Sy = DSP_R (y) >> 16 & 0x7f;",
"", "",
"if (Sy < 32)", "if (Sy <= 32)",
" {", " {",
" if (Sy == 32)", " if (Sy == 32)",
" {", " {",