diff options
author | j_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-09-30 01:01:08 +0000 |
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committer | j_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-09-30 01:01:08 +0000 |
commit | 477023a6038e8f457c604b138198f76d093b9a87 (patch) | |
tree | 92d690797d48411c393b4d014462cad3755b41bf /target-ppc/translate.c | |
parent | bfa1e5cf0abccb74e8de2c135e7d9f1f509730a9 (diff) |
Improve single-precision floats load & stores:
as the PowerPC registers only store double-precision floats,
use float64_to_float32 & float32_to_float64 to do the appropriate conversion.
Implement stfiwx.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3280 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-ppc/translate.c')
-rw-r--r-- | target-ppc/translate.c | 72 |
1 files changed, 32 insertions, 40 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c index e88cfafaee..7f84ed7d69 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -2581,8 +2581,8 @@ GEN_HANDLER(sync, 0x1F, 0x16, 0x12, 0x03CF0801, PPC_MEM_SYNC) } /*** Floating-point load ***/ -#define GEN_LDF(width, opc) \ -GEN_HANDLER(l##width, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ +#define GEN_LDF(width, opc, type) \ +GEN_HANDLER(l##width, opc, 0xFF, 0xFF, 0x00000000, type) \ { \ if (unlikely(!ctx->fpu_enabled)) { \ GEN_EXCP_NO_FP(ctx); \ @@ -2593,8 +2593,8 @@ GEN_HANDLER(l##width, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ gen_op_store_FT0_fpr(rD(ctx->opcode)); \ } -#define GEN_LDUF(width, opc) \ -GEN_HANDLER(l##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ +#define GEN_LDUF(width, opc, type) \ +GEN_HANDLER(l##width##u, opc, 0xFF, 0xFF, 0x00000000, type) \ { \ if (unlikely(!ctx->fpu_enabled)) { \ GEN_EXCP_NO_FP(ctx); \ @@ -2610,8 +2610,8 @@ GEN_HANDLER(l##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ } -#define GEN_LDUXF(width, opc) \ -GEN_HANDLER(l##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \ +#define GEN_LDUXF(width, opc, type) \ +GEN_HANDLER(l##width##ux, 0x1F, 0x17, opc, 0x00000001, type) \ { \ if (unlikely(!ctx->fpu_enabled)) { \ GEN_EXCP_NO_FP(ctx); \ @@ -2627,8 +2627,8 @@ GEN_HANDLER(l##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ } -#define GEN_LDXF(width, opc2, opc3) \ -GEN_HANDLER(l##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_FLOAT) \ +#define GEN_LDXF(width, opc2, opc3, type) \ +GEN_HANDLER(l##width##x, 0x1F, opc2, opc3, 0x00000001, type) \ { \ if (unlikely(!ctx->fpu_enabled)) { \ GEN_EXCP_NO_FP(ctx); \ @@ -2639,21 +2639,21 @@ GEN_HANDLER(l##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_FLOAT) \ gen_op_store_FT0_fpr(rD(ctx->opcode)); \ } -#define GEN_LDFS(width, op) \ +#define GEN_LDFS(width, op, type) \ OP_LD_TABLE(width); \ -GEN_LDF(width, op | 0x20); \ -GEN_LDUF(width, op | 0x21); \ -GEN_LDUXF(width, op | 0x01); \ -GEN_LDXF(width, 0x17, op | 0x00) +GEN_LDF(width, op | 0x20, type); \ +GEN_LDUF(width, op | 0x21, type); \ +GEN_LDUXF(width, op | 0x01, type); \ +GEN_LDXF(width, 0x17, op | 0x00, type) /* lfd lfdu lfdux lfdx */ -GEN_LDFS(fd, 0x12); +GEN_LDFS(fd, 0x12, PPC_FLOAT); /* lfs lfsu lfsux lfsx */ -GEN_LDFS(fs, 0x10); +GEN_LDFS(fs, 0x10, PPC_FLOAT); /*** Floating-point store ***/ -#define GEN_STF(width, opc) \ -GEN_HANDLER(st##width, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ +#define GEN_STF(width, opc, type) \ +GEN_HANDLER(st##width, opc, 0xFF, 0xFF, 0x00000000, type) \ { \ if (unlikely(!ctx->fpu_enabled)) { \ GEN_EXCP_NO_FP(ctx); \ @@ -2664,8 +2664,8 @@ GEN_HANDLER(st##width, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ op_ldst(st##width); \ } -#define GEN_STUF(width, opc) \ -GEN_HANDLER(st##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ +#define GEN_STUF(width, opc, type) \ +GEN_HANDLER(st##width##u, opc, 0xFF, 0xFF, 0x00000000, type) \ { \ if (unlikely(!ctx->fpu_enabled)) { \ GEN_EXCP_NO_FP(ctx); \ @@ -2681,8 +2681,8 @@ GEN_HANDLER(st##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ } -#define GEN_STUXF(width, opc) \ -GEN_HANDLER(st##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \ +#define GEN_STUXF(width, opc, type) \ +GEN_HANDLER(st##width##ux, 0x1F, 0x17, opc, 0x00000001, type) \ { \ if (unlikely(!ctx->fpu_enabled)) { \ GEN_EXCP_NO_FP(ctx); \ @@ -2698,8 +2698,8 @@ GEN_HANDLER(st##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \ gen_op_store_T0_gpr(rA(ctx->opcode)); \ } -#define GEN_STXF(width, opc2, opc3) \ -GEN_HANDLER(st##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_FLOAT) \ +#define GEN_STXF(width, opc2, opc3, type) \ +GEN_HANDLER(st##width##x, 0x1F, opc2, opc3, 0x00000001, type) \ { \ if (unlikely(!ctx->fpu_enabled)) { \ GEN_EXCP_NO_FP(ctx); \ @@ -2710,30 +2710,22 @@ GEN_HANDLER(st##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_FLOAT) \ op_ldst(st##width); \ } -#define GEN_STFS(width, op) \ +#define GEN_STFS(width, op, type) \ OP_ST_TABLE(width); \ -GEN_STF(width, op | 0x20); \ -GEN_STUF(width, op | 0x21); \ -GEN_STUXF(width, op | 0x01); \ -GEN_STXF(width, 0x17, op | 0x00) +GEN_STF(width, op | 0x20, type); \ +GEN_STUF(width, op | 0x21, type); \ +GEN_STUXF(width, op | 0x01, type); \ +GEN_STXF(width, 0x17, op | 0x00, type) /* stfd stfdu stfdux stfdx */ -GEN_STFS(fd, 0x16); +GEN_STFS(fd, 0x16, PPC_FLOAT); /* stfs stfsu stfsux stfsx */ -GEN_STFS(fs, 0x14); +GEN_STFS(fs, 0x14, PPC_FLOAT); /* Optional: */ /* stfiwx */ -GEN_HANDLER(stfiwx, 0x1F, 0x17, 0x1E, 0x00000001, PPC_FLOAT_STFIWX) -{ - if (unlikely(!ctx->fpu_enabled)) { - GEN_EXCP_NO_FP(ctx); - return; - } - gen_addr_reg_index(ctx); - /* XXX: TODO: memcpy low order 32 bits of FRP(rs) into memory */ - GEN_EXCP_INVAL(ctx); -} +OP_ST_TABLE(fiwx); +GEN_STXF(fiwx, 0x17, 0x1E, PPC_FLOAT_STFIWX); /*** Branch ***/ static inline void gen_goto_tb (DisasContext *ctx, int n, target_ulong dest) |