Commit b6cb41b2 authored by David Gibson's avatar David Gibson
Browse files

target/ppc: Style fixes for int_helper.c 



Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Reviewed-by: default avatarCédric Le Goater <clg@kaod.org>
Reviewed-by: default avatarGreg Kurz <groug@kaod.org>
parent c647e3fe

target/ppc/int_helper.c

+39 −31
Original line number Diff line number Diff line
@@ -137,7 +137,8 @@ uint64_t helper_divde(CPUPPCState *env, uint64_t rau, uint64_t rbu, uint32_t oe) 
/* if x = 0xab, returns 0xababababababababa */

#define pattern(x) (((x) & 0xff) * (~(target_ulong)0 / 0xff))



/* substract 1 from each byte, and with inverse, check if MSB is set at each

/*

 * subtract 1 from each byte, and with inverse, check if MSB is set at each

 * byte.

 * i.e. ((0x00 - 0x01) & ~(0x00)) & 0x80

 *      (0xFF & 0xFF) & 0x80 = 0x80 (zero found)
@@ -156,7 +157,8 @@ uint32_t helper_cmpeqb(target_ulong ra, target_ulong rb) 
#undef haszero

#undef hasvalue



/* Return invalid random number.

/*

 * Return invalid random number.

 *

 * FIXME: Add rng backend or other mechanism to get cryptographically suitable

 * random number
@@ -370,7 +372,8 @@ target_ulong helper_divso(CPUPPCState *env, target_ulong arg1, 
/* 602 specific instructions */

/* mfrom is the most crazy instruction ever seen, imho ! */

/* Real implementation uses a ROM table. Do the same */

/* Extremely decomposed:

/*

 * Extremely decomposed:

 *                      -arg / 256

 * return 256 * log10(10           + 1.0) + 0.5

 */
@@ -634,7 +637,8 @@ void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ 
    }                                                                   \

}



/* VABSDU - Vector absolute difference unsigned

/*

 * VABSDU - Vector absolute difference unsigned

 *   name    - instruction mnemonic suffix (b: byte, h: halfword, w: word)

 *   element - element type to access from vector

 */
@@ -739,7 +743,8 @@ void helper_vcmpne##suffix(CPUPPCState *env, ppc_avr_t *r, \ 
    }                                                                   \

}



/* VCMPNEZ - Vector compare not equal to zero

/*

 * VCMPNEZ - Vector compare not equal to zero

 *   suffix  - instruction mnemonic suffix (b: byte, h: halfword, w: word)

 *   element - element type to access from vector

 */
@@ -1736,9 +1741,11 @@ VEXTU_X_DO(vextuhrx, 16, 0) 
VEXTU_X_DO(vextuwrx, 32, 0)

#undef VEXTU_X_DO



/* The specification says that the results are undefined if all of the

 * shift counts are not identical.  We check to make sure that they are

 * to conform to what real hardware appears to do.  */

/*

 * The specification says that the results are undefined if all of the

 * shift counts are not identical.  We check to make sure that they

 * are to conform to what real hardware appears to do.

 */

#define VSHIFT(suffix, leftp)                                           \

    void helper_vs##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)    \

    {                                                                   \
@@ -1805,9 +1812,10 @@ void helper_vsrv(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) 
    int i;

    unsigned int shift, bytes;



    /* Use reverse order, as destination and source register can be same. Its

     * being modified in place saving temporary, reverse order will guarantee

     * that computed result is not fed back.

    /*

     * Use reverse order, as destination and source register can be

     * same. Its being modified in place saving temporary, reverse

     * order will guarantee that computed result is not fed back.

     */

    for (i = ARRAY_SIZE(r->u8) - 1; i >= 0; i--) {

        shift = b->u8[i] & 0x7;                 /* extract shift value */