Commit 66c3e328 authored by Tom Musta's avatar Tom Musta Committed by Alexander Graf
Browse files

target-ppc: Add ISA2.06 lfiwzx Instruction 



This patch adds the Load Floating Point as Integer Word and
Zero Indexed (lfiwzx) instruction which was introduced in
Power ISA 2.06.

Signed-off-by: default avatarTom Musta <tommusta@gmail.com>
Reviewed-by: default avatarRichard Henderson <rth@twiddle.net>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent ce8ca30b

target-ppc/translate.c

+15 −0
Original line number Diff line number Diff line
@@ -3508,6 +3508,20 @@ static void gen_lfiwax(DisasContext *ctx) 
    tcg_temp_free(t0);

}



/* lfiwzx */

static void gen_lfiwzx(DisasContext *ctx)

{

    TCGv EA;

    if (unlikely(!ctx->fpu_enabled)) {

        gen_exception(ctx, POWERPC_EXCP_FPU);

        return;

    }

    gen_set_access_type(ctx, ACCESS_FLOAT);

    EA = tcg_temp_new();

    gen_addr_reg_index(ctx, EA);

    gen_qemu_ld32u_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);

    tcg_temp_free(EA);

}

/***                         Floating-point store                          ***/

#define GEN_STF(name, stop, opc, type)                                        \

static void glue(gen_, name)(DisasContext *ctx)                                       \
@@ -9984,6 +9998,7 @@ GEN_LDXF(name, ldop, 0x17, op | 0x00, type) 
GEN_LDFS(lfd, ld64, 0x12, PPC_FLOAT)

GEN_LDFS(lfs, ld32fs, 0x10, PPC_FLOAT)

GEN_HANDLER_E(lfiwax, 0x1f, 0x17, 0x1a, 0x00000001, PPC_NONE, PPC2_ISA205),

GEN_HANDLER_E(lfiwzx, 0x1f, 0x17, 0x1b, 0x1, PPC_NONE, PPC2_FP_CVT_ISA206),

GEN_HANDLER_E(lfdp, 0x39, 0xFF, 0xFF, 0x00200003, PPC_NONE, PPC2_ISA205),

GEN_HANDLER_E(lfdpx, 0x1F, 0x17, 0x18, 0x00200001, PPC_NONE, PPC2_ISA205),