Re: [Qemu-devel] [PATCH, RFC, WIP] TCG for Qemu target Sparc32/64

[Thiemo Seufer]

Blue Swirl wrote:
> The attached patch enables most TCG ops for Qemu Sparc32/64 target.
> Sparc32 softmmu and linux-user are OK, but Sparc64 and Sparc32plus
> targets do not work.
> 
> Comments?
> 
> It would be nice to get rid of T2 usage in std (also stda and
> casa/casxa) but I don't know how to pass a 64-bit value from legacy op
> to TCG stores and loads on a 32-bit target and host.

> Index: qemu/target-sparc/translate.c
> ===================================================================
> --- qemu.orig/target-sparc/translate.c        2008-02-21 20:00:28.000000000 
> +0000
> +++ qemu/target-sparc/translate.c     2008-02-21 20:02:07.000000000 +0000
> @@ -44,6 +44,81 @@
>  #define JUMP_PC     2 /* dynamic pc value which takes only two values
>                           according to jump_pc[T2] */
>  
> +#ifdef TARGET_SPARC64
> +#define TCG_TYPE_TL TCG_TYPE_I64
> +#define tcg_gen_movi_tl tcg_gen_movi_i64
> +#define tcg_gen_mov_tl tcg_gen_mov_i64
> +#define tcg_gen_ld8u_tl tcg_gen_ld8u_i64
> +#define tcg_gen_ld8s_tl tcg_gen_ld8s_i64
> +#define tcg_gen_ld16u_tl tcg_gen_ld16u_i64
> +#define tcg_gen_ld16s_tl tcg_gen_ld16s_i64
> +#define tcg_gen_ld32u_tl tcg_gen_ld32u_i64
> +#define tcg_gen_ld32s_tl tcg_gen_ld32s_i64
> +#define tcg_gen_ld_tl tcg_gen_ld_i64
> +#define tcg_gen_st8_tl tcg_gen_st8_i64
> +#define tcg_gen_st16_tl tcg_gen_st16_i64
> +#define tcg_gen_st32_tl tcg_gen_st32_i64
> +#define tcg_gen_st_tl tcg_gen_st_i64
> +#define tcg_gen_add_tl tcg_gen_add_i64
> +#define tcg_gen_addi_tl tcg_gen_addi_i64
> +#define tcg_gen_sub_tl tcg_gen_sub_i64
> +#define tcg_gen_subi_tl tcg_gen_subi_i64
> +#define tcg_gen_and_tl tcg_gen_and_i64
> +#define tcg_gen_andi_tl tcg_gen_andi_i64
> +#define tcg_gen_or_tl tcg_gen_or_i64
> +#define tcg_gen_ori_tl tcg_gen_ori_i64
> +#define tcg_gen_xor_tl tcg_gen_xor_i64
> +#define tcg_gen_xori_tl tcg_gen_xori_i64
> +#define tcg_gen_shl_tl tcg_gen_shl_i64
> +#define tcg_gen_shli_tl tcg_gen_shli_i64
> +#define tcg_gen_shr_tl tcg_gen_shr_i64
> +#define tcg_gen_shri_tl tcg_gen_shri_i64
> +#define tcg_gen_sar_tl tcg_gen_sar_i64
> +#define tcg_gen_sari_tl tcg_gen_sari_i64
> +#else
> +#define TCG_TYPE_TL TCG_TYPE_I32
> +#define tcg_gen_movi_tl tcg_gen_movi_i32
> +#define tcg_gen_mov_tl tcg_gen_mov_i32
> +#define tcg_gen_ld8u_tl tcg_gen_ld8u_i32
> +#define tcg_gen_ld8s_tl tcg_gen_ld8s_i32
> +#define tcg_gen_ld16u_tl tcg_gen_ld16u_i32
> +#define tcg_gen_ld16s_tl tcg_gen_ld16s_i32
> +#define tcg_gen_ld32u_tl tcg_gen_ld_i32
> +#define tcg_gen_ld32s_tl tcg_gen_ld_i32
> +#define tcg_gen_ld_tl tcg_gen_ld_i32
> +#define tcg_gen_st8_tl tcg_gen_st8_i32
> +#define tcg_gen_st16_tl tcg_gen_st16_i32
> +#define tcg_gen_st32_tl tcg_gen_st_i32
> +#define tcg_gen_st_tl tcg_gen_st_i32
> +#define tcg_gen_add_tl tcg_gen_add_i32
> +#define tcg_gen_addi_tl tcg_gen_addi_i32
> +#define tcg_gen_sub_tl tcg_gen_sub_i32
> +#define tcg_gen_subi_tl tcg_gen_subi_i32
> +#define tcg_gen_and_tl tcg_gen_and_i32
> +#define tcg_gen_andi_tl tcg_gen_andi_i32
> +#define tcg_gen_or_tl tcg_gen_or_i32
> +#define tcg_gen_ori_tl tcg_gen_ori_i32
> +#define tcg_gen_xor_tl tcg_gen_xor_i32
> +#define tcg_gen_xori_tl tcg_gen_xori_i32
> +#define tcg_gen_shl_tl tcg_gen_shl_i32
> +#define tcg_gen_shli_tl tcg_gen_shli_i32
> +#define tcg_gen_shr_tl tcg_gen_shr_i32
> +#define tcg_gen_shri_tl tcg_gen_shri_i32
> +#define tcg_gen_sar_tl tcg_gen_sar_i32
> +#define tcg_gen_sari_tl tcg_gen_sari_i32
> +#endif

This whole lot should probably move to generic code (conditionalized on
TARGET_LONG_BITS), I have the same code in my MIPS prototype.


Thiemo