SYS-OSS/FRET-qemu
4
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

target/ppc: introduce do_ea_calc

Browse Source 
The do_ea_calc function will calculate the effective address(EA)
according to PowerIsa 3.1. With that, it was replaced part of
do_ldst() that calculates the EA by this new function.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Fernando Eckhardt Valle (pherde) <phervalle@gmail.com>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20211029202424.175401-2-matheus.ferst@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Fernando Eckhardt Valle 2021-10-29 17:23:51 -03:00 committed by David Gibson
parent 114f3c8cc4
commit eb63efd9f6
2 changed files with 15 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
target/ppc/translate.c
View File

@ -3197,6 +3197,20 @@ static inline void gen_align_no_le(DisasContext *ctx)
(ctx->opcode & 0x03FF0000) | POWERPC_EXCP_ALIGN_LE); (ctx->opcode & 0x03FF0000) | POWERPC_EXCP_ALIGN_LE);
} }
static TCGv do_ea_calc(DisasContext *ctx, int ra, TCGv displ)
{
TCGv ea = tcg_temp_new();
if (ra) {
tcg_gen_add_tl(ea, cpu_gpr[ra], displ);
} else {
tcg_gen_mov_tl(ea, displ);
}
if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(ea, ea);
}
return ea;
}
/*** Integer load ***/ /*** Integer load ***/
#define DEF_MEMOP(op) ((op) | ctx->default_tcg_memop_mask) #define DEF_MEMOP(op) ((op) | ctx->default_tcg_memop_mask)
#define BSWAP_MEMOP(op) ((op) | (ctx->default_tcg_memop_mask ^ MO_BSWAP)) #define BSWAP_MEMOP(op) ((op) | (ctx->default_tcg_memop_mask ^ MO_BSWAP))

10
target/ppc/translate/fixedpoint-impl.c.inc
View File

@ -51,15 +51,7 @@ static bool do_ldst(DisasContext *ctx, int rt, int ra, TCGv displ, bool update,
} }
gen_set_access_type(ctx, ACCESS_INT); gen_set_access_type(ctx, ACCESS_INT);
ea = tcg_temp_new(); ea = do_ea_calc(ctx, ra, displ);
if (ra) {
tcg_gen_add_tl(ea, cpu_gpr[ra], displ);
} else {
tcg_gen_mov_tl(ea, displ);
}
if (NARROW_MODE(ctx)) {
tcg_gen_ext32u_tl(ea, ea);
}
mop ^= ctx->default_tcg_memop_mask; mop ^= ctx->default_tcg_memop_mask;
if (store) { if (store) {
tcg_gen_qemu_st_tl(cpu_gpr[rt], ea, ctx->mem_idx, mop); tcg_gen_qemu_st_tl(cpu_gpr[rt], ea, ctx->mem_idx, mop);