| Message ID | 20240303021925.116609-4-richard.henderson@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | target/hppa: Fix some wide mode displacements | expand |
On 3/3/24 03:19, Richard Henderson wrote: > Reported-by: Sven Schnelle <svens@stackframe.org> > Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Helge Deller <deller@gmx.de> > --- > target/hppa/insns.decode | 27 ++++++++++++++++----------- > target/hppa/translate.c | 17 +++++++++++++++++ > 2 files changed, 33 insertions(+), 11 deletions(-) > > diff --git a/target/hppa/insns.decode b/target/hppa/insns.decode > index 9c6f92444c..5412ff9836 100644 > --- a/target/hppa/insns.decode > +++ b/target/hppa/insns.decode > @@ -26,7 +26,7 @@ > > %assemble_11a 4:12 0:1 !function=expand_11a > %assemble_12 0:s1 2:1 3:10 !function=expand_shl2 > -%assemble_12a 0:s1 3:11 !function=expand_shl2 > +%assemble_12a 3:13 0:1 !function=expand_12a > %assemble_16 0:16 !function=expand_16 > %assemble_17 0:s1 16:5 2:1 3:10 !function=expand_shl2 > %assemble_22 0:s1 16:10 2:1 3:10 !function=expand_shl2 > @@ -314,8 +314,9 @@ fstd 001011 ..... ..... .. . 1 -- 100 0 . ..... @fldstdi > @ldstim14m ...... b:5 t:5 ................ \ > &ldst sp=%assemble_sp disp=%assemble_16 \ > x=0 scale=0 m=%neg_to_m > -@ldstim12m ...... b:5 t:5 sp:2 .............. \ > - &ldst disp=%assemble_12a x=0 scale=0 m=%pos_to_m > +@ldstim12m ...... b:5 t:5 ................ \ > + &ldst sp=%assemble_sp disp=%assemble_12a \ > + x=0 scale=0 m=%pos_to_m > > # LDB, LDH, LDW, LDWM > ld 010000 ..... ..... .. .............. @ldstim14 size=0 > @@ -331,15 +332,19 @@ st 011010 ..... ..... .. .............. @ldstim14 size=2 > st 011011 ..... ..... .. .............. @ldstim14m size=2 > st 011111 ..... ..... .. ...........10. @ldstim12m size=2 > > -fldw 010110 b:5 ..... sp:2 .............. \ > - &ldst disp=%assemble_12a t=%rm64 m=%a_to_m x=0 scale=0 size=2 > -fldw 010111 b:5 ..... sp:2 ...........0.. \ > - &ldst disp=%assemble_12a t=%rm64 m=0 x=0 scale=0 size=2 > +fldw 010110 b:5 ..... ................ \ > + &ldst disp=%assemble_12a sp=%assemble_sp \ > + t=%rm64 m=%a_to_m x=0 scale=0 size=2 > +fldw 010111 b:5 ..... .............0.. \ > + &ldst disp=%assemble_12a sp=%assemble_sp \ > + t=%rm64 m=0 x=0 scale=0 size=2 > > -fstw 011110 b:5 ..... sp:2 .............. \ > - &ldst disp=%assemble_12a t=%rm64 m=%a_to_m x=0 scale=0 size=2 > -fstw 011111 b:5 ..... sp:2 ...........0.. \ > - &ldst disp=%assemble_12a t=%rm64 m=0 x=0 scale=0 size=2 > +fstw 011110 b:5 ..... ................ \ > + &ldst disp=%assemble_12a sp=%assemble_sp \ > + t=%rm64 m=%a_to_m x=0 scale=0 size=2 > +fstw 011111 b:5 ..... .............0.. \ > + &ldst disp=%assemble_12a sp=%assemble_sp \ > + t=%rm64 m=0 x=0 scale=0 size=2 > > ld 010100 ..... ..... .. ............0. @ldstim11 > fldd 010100 ..... ..... .. ............1. @ldstim11 > diff --git a/target/hppa/translate.c b/target/hppa/translate.c > index 6dcc74e681..1ef266c403 100644 > --- a/target/hppa/translate.c > +++ b/target/hppa/translate.c > @@ -155,6 +155,23 @@ static int expand_11a(DisasContext *ctx, int val) > return i; > } > > +/* Expander for assemble_16a(s,im11a,i). */ > +static int expand_12a(DisasContext *ctx, int val) > +{ > + /* > + * @val is bit 0 and bits [3:15]. > + * Swizzle thing around depending on PSW.W. > + */ > + int im11a = extract32(val, 1, 11); > + int sp = extract32(val, 12, 2); > + int i = (-(val & 1) << 13) | (im11a << 2); > + > + if (ctx->tb_flags & PSW_W) { > + i ^= sp << 13; > + } > + return i; > +} > + > /* Expander for assemble_16(s,im14). */ > static int expand_16(DisasContext *ctx, int val) > {
diff --git a/target/hppa/insns.decode b/target/hppa/insns.decode index 9c6f92444c..5412ff9836 100644 --- a/target/hppa/insns.decode +++ b/target/hppa/insns.decode @@ -26,7 +26,7 @@ %assemble_11a 4:12 0:1 !function=expand_11a %assemble_12 0:s1 2:1 3:10 !function=expand_shl2 -%assemble_12a 0:s1 3:11 !function=expand_shl2 +%assemble_12a 3:13 0:1 !function=expand_12a %assemble_16 0:16 !function=expand_16 %assemble_17 0:s1 16:5 2:1 3:10 !function=expand_shl2 %assemble_22 0:s1 16:10 2:1 3:10 !function=expand_shl2 @@ -314,8 +314,9 @@ fstd 001011 ..... ..... .. . 1 -- 100 0 . ..... @fldstdi @ldstim14m ...... b:5 t:5 ................ \ &ldst sp=%assemble_sp disp=%assemble_16 \ x=0 scale=0 m=%neg_to_m -@ldstim12m ...... b:5 t:5 sp:2 .............. \ - &ldst disp=%assemble_12a x=0 scale=0 m=%pos_to_m +@ldstim12m ...... b:5 t:5 ................ \ + &ldst sp=%assemble_sp disp=%assemble_12a \ + x=0 scale=0 m=%pos_to_m # LDB, LDH, LDW, LDWM ld 010000 ..... ..... .. .............. @ldstim14 size=0 @@ -331,15 +332,19 @@ st 011010 ..... ..... .. .............. @ldstim14 size=2 st 011011 ..... ..... .. .............. @ldstim14m size=2 st 011111 ..... ..... .. ...........10. @ldstim12m size=2 -fldw 010110 b:5 ..... sp:2 .............. \ - &ldst disp=%assemble_12a t=%rm64 m=%a_to_m x=0 scale=0 size=2 -fldw 010111 b:5 ..... sp:2 ...........0.. \ - &ldst disp=%assemble_12a t=%rm64 m=0 x=0 scale=0 size=2 +fldw 010110 b:5 ..... ................ \ + &ldst disp=%assemble_12a sp=%assemble_sp \ + t=%rm64 m=%a_to_m x=0 scale=0 size=2 +fldw 010111 b:5 ..... .............0.. \ + &ldst disp=%assemble_12a sp=%assemble_sp \ + t=%rm64 m=0 x=0 scale=0 size=2 -fstw 011110 b:5 ..... sp:2 .............. \ - &ldst disp=%assemble_12a t=%rm64 m=%a_to_m x=0 scale=0 size=2 -fstw 011111 b:5 ..... sp:2 ...........0.. \ - &ldst disp=%assemble_12a t=%rm64 m=0 x=0 scale=0 size=2 +fstw 011110 b:5 ..... ................ \ + &ldst disp=%assemble_12a sp=%assemble_sp \ + t=%rm64 m=%a_to_m x=0 scale=0 size=2 +fstw 011111 b:5 ..... .............0.. \ + &ldst disp=%assemble_12a sp=%assemble_sp \ + t=%rm64 m=0 x=0 scale=0 size=2 ld 010100 ..... ..... .. ............0. @ldstim11 fldd 010100 ..... ..... .. ............1. @ldstim11 diff --git a/target/hppa/translate.c b/target/hppa/translate.c index 6dcc74e681..1ef266c403 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -155,6 +155,23 @@ static int expand_11a(DisasContext *ctx, int val) return i; } +/* Expander for assemble_16a(s,im11a,i). */ +static int expand_12a(DisasContext *ctx, int val) +{ + /* + * @val is bit 0 and bits [3:15]. + * Swizzle thing around depending on PSW.W. + */ + int im11a = extract32(val, 1, 11); + int sp = extract32(val, 12, 2); + int i = (-(val & 1) << 13) | (im11a << 2); + + if (ctx->tb_flags & PSW_W) { + i ^= sp << 13; + } + return i; +} + /* Expander for assemble_16(s,im14). */ static int expand_16(DisasContext *ctx, int val) {
Reported-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/hppa/insns.decode | 27 ++++++++++++++++----------- target/hppa/translate.c | 17 +++++++++++++++++ 2 files changed, 33 insertions(+), 11 deletions(-)