[Qemu-devel] [PULL 18/24] target-sparc: Directly implement easy ldf/stf asis

[Richard Henderson <rth@twiddle.net>]

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 target-sparc/translate.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/target-sparc/translate.c b/target-sparc/translate.c
index 0b29aff..2ea6964 100644
--- a/target-sparc/translate.c
+++ b/target-sparc/translate.c
@@ -2282,10 +2282,33 @@ static void gen_ldf_asi(DisasContext *dc, TCGv addr,
                         int insn, int size, int rd)
 {
     DisasASI da = get_asi(dc, insn, (size == 4 ? MO_TEUL : MO_TEQ));
+    TCGv_i32 d32;
 
     switch (da.type) {
     case GET_ASI_EXCP:
         break;
+
+    case GET_ASI_DIRECT:
+        gen_address_mask(dc, addr);
+        switch (size) {
+        case 4:
+            d32 = gen_dest_fpr_F(dc);
+            tcg_gen_qemu_ld_i32(d32, addr, da.mem_idx, da.memop);
+            gen_store_fpr_F(dc, rd, d32);
+            break;
+        case 8:
+            tcg_gen_qemu_ld_i64(cpu_fpr[rd / 2], addr, da.mem_idx, da.memop);
+            break;
+        case 16:
+            tcg_gen_qemu_ld_i64(cpu_fpr[rd / 2], addr, da.mem_idx, da.memop);
+            tcg_gen_addi_tl(addr, addr, 8);
+            tcg_gen_qemu_ld_i64(cpu_fpr[rd/2+1], addr, da.mem_idx, da.memop);
+            break;
+        default:
+            g_assert_not_reached();
+        }
+        break;
+
     default:
         {
             TCGv_i32 r_asi = tcg_const_i32(da.asi);
@@ -2306,10 +2329,32 @@ static void gen_stf_asi(DisasContext *dc, TCGv addr,
                         int insn, int size, int rd)
 {
     DisasASI da = get_asi(dc, insn, (size == 4 ? MO_TEUL : MO_TEQ));
+    TCGv_i32 d32;
 
     switch (da.type) {
     case GET_ASI_EXCP:
         break;
+
+    case GET_ASI_DIRECT:
+        gen_address_mask(dc, addr);
+        switch (size) {
+        case 4:
+            d32 = gen_load_fpr_F(dc, rd);
+            tcg_gen_qemu_st_i32(d32, addr, da.mem_idx, da.memop);
+            break;
+        case 8:
+            tcg_gen_qemu_st_i64(cpu_fpr[rd / 2], addr, da.mem_idx, da.memop);
+            break;
+        case 16:
+            tcg_gen_qemu_st_i64(cpu_fpr[rd / 2], addr, da.mem_idx, da.memop);
+            tcg_gen_addi_tl(addr, addr, 8);
+            tcg_gen_qemu_st_i64(cpu_fpr[rd/2+1], addr, da.mem_idx, da.memop);
+            break;
+        default:
+            g_assert_not_reached();
+        }
+        break;
+
     default:
         {
             TCGv_i32 r_asi = tcg_const_i32(da.asi);
-- 
2.7.4