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| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2019-01-30 20:36:32 +0000 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-02-04 18:44:19 +1100 |
| commit | d81c20404e2254e2f56d649c978c7fd6b28c3394 (patch) | |
| tree | 27ff1595026f663e47edadaccfec9f235041e79d /target | |
| parent | 6e66d0c6484c7f5b30b7a08d83bd3d369ba58682 (diff) | |
| download | qemu-d81c20404e2254e2f56d649c978c7fd6b28c3394.zip qemu-d81c20404e2254e2f56d649c978c7fd6b28c3394.tar.gz qemu-d81c20404e2254e2f56d649c978c7fd6b28c3394.tar.bz2 | |
target/ppc: rework vmrg{l,h}{b,h,w} instructions to use Vsr* macros
The current implementations make use of the endian-specific macros MRGLO/MRGHI
and also reference HI_IDX and LO_IDX directly to calculate array offsets.
Rework the implementation to use the Vsr* macros so that these per-endian
references can be removed.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target')
| -rw-r--r-- | target/ppc/int_helper.c | 54 |
1 files changed, 19 insertions, 35 deletions
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c index 598731d..fe418b3 100644 --- a/target/ppc/int_helper.c +++ b/target/ppc/int_helper.c @@ -976,43 +976,27 @@ void helper_vmladduhm(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) } } -#define VMRG_DO(name, element, highp) \ - void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ - { \ - ppc_avr_t result; \ - int i; \ - size_t n_elems = ARRAY_SIZE(r->element); \ - \ - for (i = 0; i < n_elems / 2; i++) { \ - if (highp) { \ - result.element[i*2+HI_IDX] = a->element[i]; \ - result.element[i*2+LO_IDX] = b->element[i]; \ - } else { \ - result.element[n_elems - i * 2 - (1 + HI_IDX)] = \ - b->element[n_elems - i - 1]; \ - result.element[n_elems - i * 2 - (1 + LO_IDX)] = \ - a->element[n_elems - i - 1]; \ - } \ - } \ - *r = result; \ - } -#if defined(HOST_WORDS_BIGENDIAN) -#define MRGHI 0 -#define MRGLO 1 -#else -#define MRGHI 1 -#define MRGLO 0 -#endif -#define VMRG(suffix, element) \ - VMRG_DO(mrgl##suffix, element, MRGHI) \ - VMRG_DO(mrgh##suffix, element, MRGLO) -VMRG(b, u8) -VMRG(h, u16) -VMRG(w, u32) +#define VMRG_DO(name, element, access, ofs) \ + void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ + { \ + ppc_avr_t result; \ + int i, half = ARRAY_SIZE(r->element) / 2; \ + \ + for (i = 0; i < half; i++) { \ + result.access(i * 2 + 0) = a->access(i + ofs); \ + result.access(i * 2 + 1) = b->access(i + ofs); \ + } \ + *r = result; \ + } + +#define VMRG(suffix, element, access) \ + VMRG_DO(mrgl##suffix, element, access, half) \ + VMRG_DO(mrgh##suffix, element, access, 0) +VMRG(b, u8, VsrB) +VMRG(h, u16, VsrH) +VMRG(w, u32, VsrW) #undef VMRG_DO #undef VMRG -#undef MRGHI -#undef MRGLO void helper_vmsummbm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) |