diff options
| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2016-12-09 17:47:20 +0530 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-01-31 10:10:13 +1100 |
| commit | 6914bc4fb5c16cdf92d59e620e3f69de302ed838 (patch) | |
| tree | 8f3399b84d293305fe475a231ec91adbc76e59b5 /target/ppc/mem_helper.c | |
| parent | 234068abfb345f08b160be71e0a4099c19384712 (diff) | |
target-ppc: implement lxvl instruction
lxvl: Load VSX Vector with Length
Little/Big-endian Storage:
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
|“T”|“h”|“i”|“s”|“ ”|“i”|“s”|“ ”|“a”|“ ”|“T”|“E”|“S”|“T”|FF|FF|
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
Loading 14 bytes results in:
Vector (8-bit elements) in BE:
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
|“T”|“h”|“i”|“s”|“ ”|“i”|“s”|“ ”|“a”|“ ”|“T”|“E”|“S”|“T”|00|00|
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--+--+
Vector (8-bit elements) in LE:
+--+--+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
|00|00|“T”|“S”|“E”|“T”|“ ”|“a”|“ ”|“s”|“i”|“ ”|“s”|“i”|"h"|"T"|
+--+--+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc/mem_helper.c')
| -rw-r--r-- | target/ppc/mem_helper.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/ppc/mem_helper.c b/target/ppc/mem_helper.c index 1ab8a6eab4..c4ddc5be0c 100644 --- a/target/ppc/mem_helper.c +++ b/target/ppc/mem_helper.c @@ -24,6 +24,7 @@ #include "helper_regs.h" #include "exec/cpu_ldst.h" +#include "internal.h" //#define DEBUG_OP @@ -284,6 +285,40 @@ STVE(stvewx, cpu_stl_data_ra, bswap32, u32) #undef I #undef LVE +#ifdef TARGET_PPC64 +#define GET_NB(rb) ((rb >> 56) & 0xFF) + +#define VSX_LXVL(name, lj) \ +void helper_##name(CPUPPCState *env, target_ulong addr, \ + target_ulong xt_num, target_ulong rb) \ +{ \ + int i; \ + ppc_vsr_t xt; \ + uint64_t nb = GET_NB(rb); \ + \ + xt.s128 = int128_zero(); \ + if (nb) { \ + nb = (nb >= 16) ? 16 : nb; \ + if (msr_le && !lj) { \ + for (i = 16; i > 16 - nb; i--) { \ + xt.VsrB(i - 1) = cpu_ldub_data_ra(env, addr, GETPC()); \ + addr = addr_add(env, addr, 1); \ + } \ + } else { \ + for (i = 0; i < nb; i++) { \ + xt.VsrB(i) = cpu_ldub_data_ra(env, addr, GETPC()); \ + addr = addr_add(env, addr, 1); \ + } \ + } \ + } \ + putVSR(xt_num, &xt, env); \ +} + +VSX_LXVL(lxvl, 0) +#undef VSX_LXVL +#undef GET_NB +#endif /* TARGET_PPC64 */ + #undef HI_IDX #undef LO_IDX |