241 lines
8 KiB
C
241 lines
8 KiB
C
/*
|
|
* $Source$
|
|
* $State$
|
|
*/
|
|
|
|
operation
|
|
: OP_BF_BFA CR ',' CR { emit4($1 | ($2<<23) | ($4<<18)); }
|
|
| OP_BF_FRA_FRB CR ',' FPR ',' FPR { emit4($1 | ($2<<23) | ($4<<16) | ($6<<11)); }
|
|
| OP_BF_L_RA_RB CR ',' u1 ',' GPR ',' GPR { emit4($1 | ($2<<23) | ($4<<21) | ($6<<16) | ($8<<11)); }
|
|
| OP_BF_L_RA_SI CR ',' u1 ',' GPR ',' e16 { emit4($1 | ($2<<23) | ($4<<21) | ($6<<16) | $8); }
|
|
| OP_BF_L_RA_UI CR ',' u1 ',' GPR ',' e16 { emit4($1 | ($2<<23) | ($4<<21) | ($6<<16) | $8); }
|
|
| OP_BF_U_C c CR ',' u4 { emit4($1 | $2 | ($3<<23) | ($5<<12)); }
|
|
| OP_BO_BI_BDA u5 ',' u5 ',' bda { emit4($1 | ($2<<21) | ($4<<16) | $6); }
|
|
| OP_BO_BI_BDL u5 ',' u5 ',' bdl { emit4($1 | ($2<<21) | ($4<<16) | $6); }
|
|
| OP_BO_BI_BH u5 ',' u5 ',' u2 { emit4($1 | ($2<<21) | ($4<<16) | ($6<<11)); }
|
|
| OP_BT_BA_BB u5 ',' u5 ',' u5 { emit4($1 | ($2<<21) | ($4<<16) | ($6<<11)); }
|
|
| OP_BT_C c u5 { emit4($1 | $2 | ($3<<21)); }
|
|
| OP_FLM_FRB_C c u8 ',' FPR { emit4($1 | $2 | ($3<<17) | ($5<<11)); }
|
|
| OP_FRS_RA_D FPR ',' e16 '(' GPR ')' { emit4($1 | ($2<<21) | ($6<<16) | $4); }
|
|
| OP_FRS_RA_RB FPR ',' GPR ',' GPR { emit4($1 | ($2<<21) | ($4<<16) | ($6<<11)); }
|
|
| OP_FRT_FRA_FRB_C c FPR ',' FPR ',' FPR { emit4($1 | $2 | ($3<<21) | ($5<<16) | ($7<<11)); }
|
|
| OP_FRT_FRA_FRC_FRB_C c FPR ',' FPR ',' FPR ',' FPR { emit4($1 | $2 | ($3<<21) | ($5<<16) | ($9<<11) | ($7<<6)); }
|
|
| OP_FRT_FRA_FRC_C c FPR ',' FPR ',' FPR { emit4($1 | $2 | ($3<<21) | ($5<<16) | ($7<<6)); }
|
|
| OP_FRT_FRB_C c FPR ',' FPR { emit4($1 | $2 | ($3<<21) | ($5<<11)); }
|
|
| OP_FRT_RA_D FPR ',' e16 '(' GPR ')' { emit4($1 | ($2<<21) | ($6<<16) | $4); }
|
|
| OP_FRT_RA_RB FPR ',' GPR ',' GPR { emit4($1 | ($2<<21) | ($4<<16) | ($6<<11)); }
|
|
| OP_FRT_C c FPR { emit4($1 | $2 | ($3<<21)); }
|
|
| OP_RT GPR { emit4($1 | ($2<<21)); }
|
|
| OP_RT_RA_C c GPR ',' GPR { emit4($1 | $2 | ($3<<21) | ($5<<16)); }
|
|
| OP_RT_RA_D GPR ',' e16 '(' GPR ')' { emit4($1 | ($2<<21) | ($6<<16) | $4); }
|
|
| OP_RT_RA_DS GPR ',' ds '(' GPR ')' { emit4($1 | ($2<<21) | ($6<<16) | $4); }
|
|
| OP_RT_RA_NB GPR ',' GPR ',' nb { emit4($1 | ($2<<21) | ($4<<16) | ($6<<11)); }
|
|
| OP_RT_RA_RB GPR ',' GPR ',' GPR { emit4($1 | ($2<<21) | ($4<<16) | ($6<<11)); }
|
|
| OP_RT_RA_RB_C c GPR ',' GPR ',' GPR { emit4($1 | $2 | ($3<<21) | ($5<<16) | ($7<<11)); }
|
|
| OP_RT_RA_SI GPR ',' GPR ',' e16 { emit4($1 | ($2<<21) | ($4<<16) | $6); }
|
|
| OP_RT_RA_SI_addic c GPR ',' GPR ',' e16 { emit4($1 | ($2<<26) | ($3<<21) | ($5<<16) | $7); }
|
|
| OP_RT_SPR GPR ',' SPR { emit4($1 | ($2<<21) | ($4<<11)); }
|
|
| OP_RS_FXM u7 ',' GPR { emit4($1 | ($4<<21) | ($2<<12)); }
|
|
| OP_RS_RA_C c GPR ',' GPR { emit4($1 | $2 | ($5<<21) | ($3<<16)); }
|
|
| OP_RS_RA_D GPR ',' e16 '(' GPR ')' { emit4($1 | ($2<<21) | ($6<<16) | $4); }
|
|
| OP_RS_RA_DS GPR ',' ds '(' GPR ')' { emit4($1 | ($2<<21) | ($6<<16) | $4); }
|
|
| OP_RS_RA_NB GPR ',' GPR ',' nb { emit4($1 | ($2<<21) | ($4<<16) | ($6<<11)); }
|
|
| OP_RS_RA_UI GPR ',' GPR ',' e16 { emit4($1 | ($4<<21) | ($2<<16) | $6); }
|
|
| OP_RS_RA_UI_CC C GPR ',' GPR ',' e16 { emit4($1 | ($5<<21) | ($3<<16) | $7); }
|
|
| OP_RS_RA_RB GPR ',' GPR ',' GPR { emit4($1 | ($2<<21) | ($4<<16) | ($6<<11)); }
|
|
| OP_RS_RA_RB_C c GPR ',' GPR ',' GPR { emit4($1 | $2 | ($5<<21) | ($3<<16) | ($7<<11)); }
|
|
| OP_RS_RA_RA_C c GPR ',' GPR { emit4($1 | $2 | ($5<<21) | ($3<<16) | ($5<<11)); }
|
|
| OP_RS_RA_RB_MB5_ME5_C c GPR ',' GPR ',' GPR ',' u5 ',' u5 { emit4($1 | $2 | ($5<<21) | ($3<<16) | ($7<<11) | ($9<<6) | ($11<<1)); }
|
|
| OP_RS_RA_RB_MB6_C c GPR ',' GPR ',' GPR ',' u6 { emit4($1 | $2 | ($5<<21) | ($3<<16) | ($7<<11) | (($9&0x1F)<<6) | (($9&0x20)>>0)); }
|
|
| OP_RS_RA_RB_ME6_C c GPR ',' GPR ',' GPR ',' u6 { emit4($1 | $2 | ($5<<21) | ($3<<16) | ($7<<11) | (($9&0x1F)<<6) | (($9&0x20)>>0)); }
|
|
| OP_RS_RA_SH_MB5_ME5_C c GPR ',' GPR ',' u5 ',' u5 ',' u5 { emit4($1 | $2 | ($5<<21) | ($3<<16) | ($7<<11) | ($9<<6) | ($11<<1)); }
|
|
| OP_RS_RA_SH_MB6_SH_C c GPR ',' GPR ',' u6 ',' u6 { emit4($1 | $2 | ($5<<21) | ($3<<16) | (($7&0x1F)<<11) | ($9<<6) | (($7&0x20)>>4)); }
|
|
| OP_RS_RA_SH_ME6_SH_C c GPR ',' GPR ',' u6 ',' u6 { emit4($1 | $2 | ($5<<21) | ($3<<16) | (($7&0x1F)<<11) | ($9<<6) | (($7&0x20)>>4)); }
|
|
| OP_RS_RA_SH5_C c GPR ',' GPR ',' u5 { emit4($1 | $2 | ($5<<21) | ($3<<16) | ($7<<11)); }
|
|
| OP_RS_RA_SH6_C c GPR ',' GPR ',' u6 { emit4($1 | $2 | ($5<<21) | ($3<<16) | (($7&0x1F)<<11) | (($7&0x20)>>4)); }
|
|
| OP_RS_SPR SPR ',' GPR { emit4($1 | ($4<<21) | ($2<<11)); }
|
|
| OP_TO_RA_RB u5 ',' GPR ',' GPR { emit4($1 | ($2<<21) | ($4<<16) | ($6<<11)); }
|
|
| OP_TO_RA_SI u5 ',' GPR ',' e16 { emit4($1 | ($2<<21) | ($4<<16) | $6); }
|
|
| OP_LEV u7 { emit4($1 | ($2<<5)); }
|
|
| OP_LIA lia { emit4($1 | $2); }
|
|
| OP_LIL lil { emit4($1 | $2); }
|
|
| OP_LI32 li32 /* emitted in subrule */
|
|
;
|
|
|
|
c
|
|
: /* nothing */ { $$ = 0; }
|
|
| C { $$ = 1; }
|
|
;
|
|
|
|
e16
|
|
: absexp
|
|
{
|
|
/* Allow signed or unsigned 16-bit values. */
|
|
if (($1 < -0x8000) || ($1 > 0xffff))
|
|
serror("16-bit value out of range");
|
|
$$ = (uint16_t) $1;
|
|
}
|
|
;
|
|
|
|
u8
|
|
: absexp
|
|
{
|
|
if (($1 < 0) || ($1 > 0xFF))
|
|
serror("8-bit unsigned value out of range");
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
u7
|
|
: absexp
|
|
{
|
|
if (($1 < 0) || ($1 > 0x7F))
|
|
serror("7-bit unsigned value out of range");
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
u6
|
|
: absexp
|
|
{
|
|
if (($1 < 0) || ($1 > 0x3F))
|
|
serror("6-bit unsigned value out of range");
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
u5
|
|
: absexp
|
|
{
|
|
if (($1 < 0) || ($1 > 0x1F))
|
|
serror("5-bit unsigned value out of range");
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
u4
|
|
: absexp
|
|
{
|
|
if (($1 < 0) || ($1 > 0xF))
|
|
serror("4-bit unsigned value out of range");
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
u1
|
|
: absexp
|
|
{
|
|
if (($1 < 0) || ($1 > 1))
|
|
serror("1-bit unsigned value out of range");
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
u2
|
|
: absexp
|
|
{
|
|
if (($1 < 0) || ($1 > 0x3))
|
|
serror("2-bit unsigned value out of range");
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
ds
|
|
: e16
|
|
{
|
|
if ($1 & 3)
|
|
serror("value must be 4-aligned");
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
nb
|
|
: absexp
|
|
{
|
|
if (($1 < 1) || ($1 > 32))
|
|
serror("register count must be in the range 1..32");
|
|
|
|
if ($1 == 32)
|
|
$$ = 0;
|
|
else
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
bdl
|
|
: expr
|
|
{
|
|
int dist = $1.val - DOTVAL;
|
|
fit(fitx(dist, 25));
|
|
|
|
if (dist & 0x3)
|
|
serror("jump targets must be 4-aligned");
|
|
|
|
DOTVAL += 2;
|
|
newrelo($1.typ, RELO2 | RELPC | FIXUPFLAGS);
|
|
DOTVAL -= 2;
|
|
$$ = dist & 0xFFFD;
|
|
}
|
|
;
|
|
|
|
bda
|
|
: expr
|
|
{
|
|
int target = $1.val;
|
|
fit(fitx(target, 16));
|
|
|
|
if (target & 0x3)
|
|
serror("jump targets must be 4-aligned");
|
|
|
|
DOTVAL += 2;
|
|
newrelo($1.typ, RELO2 | FIXUPFLAGS);
|
|
DOTVAL -= 2;
|
|
$$ = target & 0xFFFD;
|
|
}
|
|
;
|
|
|
|
li32
|
|
: GPR ',' expr
|
|
{
|
|
quad type = $3.typ & S_TYP;
|
|
quad val = $3.val;
|
|
if ((type == S_ABS) && (val <= 0xffff))
|
|
emit4((14<<26) | ($1<<21) | (0<<16) | val); /* addi */
|
|
else
|
|
{
|
|
newrelo($3.typ, RELOPPC | FIXUPFLAGS);
|
|
emit4((15<<26) | ($1<<21) | (0<<16) | (val >> 16)); /* addis */
|
|
emit4((24<<26) | ($1<<21) | ($1<<16) | (val & 0xffff)); /* ori */
|
|
}
|
|
}
|
|
;
|
|
|
|
lil
|
|
: expr
|
|
{
|
|
int dist = $1.val - DOTVAL;
|
|
fit(fitx(dist, 26));
|
|
|
|
if (dist & 0x3)
|
|
serror("jump targets must be 4-aligned");
|
|
|
|
newrelo($1.typ, RELOPPC | RELPC | FIXUPFLAGS);
|
|
$$ = dist & 0x03FFFFFD;
|
|
}
|
|
;
|
|
|
|
lia
|
|
: expr
|
|
{
|
|
int target = $1.val;
|
|
fit(fitx(target, 26));
|
|
|
|
if (target & 0x3)
|
|
serror("jump targets must be 4-aligned");
|
|
|
|
newrelo($1.typ, RELOPPC | FIXUPFLAGS);
|
|
$$ = target & 0x03FFFFFD;
|
|
}
|
|
;
|
|
|