diff options
| -rw-r--r-- | tcg/sparc/tcg-target.inc.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tcg/sparc/tcg-target.inc.c b/tcg/sparc/tcg-target.inc.c index d1f4c0dead..ab3403998b 100644 --- a/tcg/sparc/tcg-target.inc.c +++ b/tcg/sparc/tcg-target.inc.c @@ -843,6 +843,29 @@ static void tcg_out_mb(TCGContext *s, TCGArg a0) static tcg_insn_unit *qemu_ld_trampoline[16]; static tcg_insn_unit *qemu_st_trampoline[16]; +static void emit_extend(TCGContext *s, TCGReg r, int op) +{ + /* Emit zero extend of 8, 16 or 32 bit data as + * required by the MO_* value op; do nothing for 64 bit. + */ + switch (op & MO_SIZE) { + case MO_8: + tcg_out_arithi(s, r, r, 0xff, ARITH_AND); + break; + case MO_16: + tcg_out_arithi(s, r, r, 16, SHIFT_SLL); + tcg_out_arithi(s, r, r, 16, SHIFT_SRL); + break; + case MO_32: + if (SPARC64) { + tcg_out_arith(s, r, r, 0, SHIFT_SRL); + } + break; + case MO_64: + break; + } +} + static void build_trampolines(TCGContext *s) { static void * const qemu_ld_helpers[16] = { @@ -910,6 +933,7 @@ static void build_trampolines(TCGContext *s) qemu_st_trampoline[i] = s->code_ptr; if (SPARC64) { + emit_extend(s, TCG_REG_O2, i); ra = TCG_REG_O4; } else { ra = TCG_REG_O1; @@ -925,6 +949,7 @@ static void build_trampolines(TCGContext *s) tcg_out_arithi(s, ra, ra + 1, 32, SHIFT_SRLX); ra += 2; } else { + emit_extend(s, ra, i); ra += 1; } /* Skip the oi argument. */ |