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qemu-e2k
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target: e2k: Add xreg read/write functions.

This commit is contained in:
Denis Drakhnia 2020-12-16 14:23:25 +02:00 committed by Denis Drakhnia
parent 1a52b6054b
commit c05dcc12d4
2 changed files with 53 additions and 44 deletions
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7
target/e2k/translate.h
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@ -475,6 +475,13 @@ void e2k_gen_reg_read_i32(TCGv_i32 ret, TCGv_i32 idx);
void e2k_gen_reg_write_i64(TCGv_i64 value, TCGv_i32 idx);
void e2k_gen_reg_write_i32(TCGv_i32 value, TCGv_i32 idx);
void e2k_gen_xreg_read_i64(TCGv_i64 ret, TCGv_i32 idx);
void e2k_gen_xreg_read_i32(TCGv_i32 ret, TCGv_i32 idx);
void e2k_gen_xreg_read16u_i32(TCGv_i32 ret, TCGv_i32 idx);
void e2k_gen_xreg_write_i64(TCGv_i64 value, TCGv_i32 idx);
void e2k_gen_xreg_write_i32(TCGv_i32 value, TCGv_i32 idx);
void e2k_gen_xreg_write16u_i32(TCGv_i32 value, TCGv_i32 idx);
void e2k_gen_preg_i64(TCGv_i64 ret, int reg);
void e2k_gen_preg_i32(TCGv_i32 ret, int reg);
TCGv_i64 e2k_get_preg(DisasContext *dc, int reg);

90
target/e2k/translate/state.c
View File

@ -3,6 +3,20 @@
#include "exec/log.h"
#include "translate.h"
static inline void gen_ptr_from_index(TCGv_ptr ret, TCGv_ptr ptr, TCGv_i32 idx,
int size)
{
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_ptr t1 = tcg_temp_new_ptr();
tcg_gen_muli_i32(t0, idx, size);
tcg_gen_ext_i32_ptr(t1, t0);
tcg_gen_add_ptr(ret, ptr, t1);
tcg_temp_free_ptr(t1);
tcg_temp_free_i32(t0);
}
static inline void gen_preg_index(TCGv_i32 ret, int idx)
{
TCGv_i32 i = tcg_const_i32(idx);
@ -239,62 +253,50 @@ void e2k_gen_reg_index_from_gregi(TCGv_i32 ret, int idx)
tcg_gen_movi_i32(ret, E2K_NR_COUNT + idx);
}
static inline void gen_reg_ptr_from_index(TCGv_ptr ret, TCGv_i32 idx)
{
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_ptr t1 = tcg_temp_new_ptr();
TCGv_ptr t2 = tcg_temp_new_ptr();
tcg_gen_muli_i32(t0, idx, 8);
tcg_gen_ext_i32_ptr(t1, t0);
tcg_gen_addi_ptr(t2, cpu_env, offsetof(CPUE2KState, regs));
tcg_gen_add_ptr(ret, t2, t1);
tcg_temp_free_ptr(t2);
tcg_temp_free_ptr(t1);
tcg_temp_free_i32(t0);
}
void e2k_gen_reg_read_i64(TCGv_i64 ret, TCGv_i32 idx)
static inline void gen_reg_ptr(TCGv_ptr ret, TCGv_i32 idx)
{
TCGv_ptr t0 = tcg_temp_new_ptr();
gen_reg_ptr_from_index(t0, idx);
tcg_gen_ld_i64(ret, t0, 0);
tcg_gen_addi_ptr(t0, cpu_env, offsetof(CPUE2KState, regs));
gen_ptr_from_index(ret, t0, idx, 8);
tcg_temp_free_ptr(t0);
}
void e2k_gen_reg_read_i32(TCGv_i32 ret, TCGv_i32 idx)
static inline void gen_xreg_ptr(TCGv_ptr ret, TCGv_i32 idx)
{
TCGv_ptr t0 = tcg_temp_new_ptr();
gen_reg_ptr_from_index(t0, idx);
tcg_gen_ld_i32(ret, t0, 0);
tcg_gen_addi_ptr(t0, cpu_env, offsetof(CPUE2KState, xregs));
gen_ptr_from_index(ret, t0, idx, 8);
tcg_temp_free_ptr(t0);
}
void e2k_gen_reg_write_i64(TCGv_i64 value, TCGv_i32 idx)
{
TCGv_i64 t0 = tcg_temp_new_i64();
TCGv_ptr t1 = tcg_temp_new_ptr();
#define GEN_REG_READ(name, ty, ptr_func, ld_func) \
void name(ty ret, TCGv_i32 idx) \
{ \
TCGv_ptr t0 = tcg_temp_new_ptr(); \
ptr_func(t0, idx); \
ld_func(ret, t0, 0); \
tcg_temp_free_ptr(t0); \
}
tcg_gen_mov_i64(t0, value);
gen_reg_ptr_from_index(t1, idx);
tcg_gen_st_i64(t0, t1, 0);
#define GEN_REG_WRITE(name, ty, ptr_func, st_func) \
void name(ty value, TCGv_i32 idx) \
{ \
TCGv_ptr t0 = tcg_temp_new_ptr(); \
ptr_func(t0, idx); \
st_func(value, t0, 0); \
tcg_temp_free_ptr(t0); \
}
tcg_temp_free_ptr(t1);
tcg_temp_free_i64(t0);
}
GEN_REG_READ(e2k_gen_reg_read_i64, TCGv_i64, gen_reg_ptr, tcg_gen_ld_i64)
GEN_REG_READ(e2k_gen_reg_read_i32, TCGv_i32, gen_reg_ptr, tcg_gen_ld_i32)
GEN_REG_WRITE(e2k_gen_reg_write_i64, TCGv_i64, gen_reg_ptr, tcg_gen_st_i64)
GEN_REG_WRITE(e2k_gen_reg_write_i32, TCGv_i32, gen_reg_ptr, tcg_gen_st_i32)
void e2k_gen_reg_write_i32(TCGv_i32 value, TCGv_i32 idx)
{
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_ptr t1 = tcg_temp_new_ptr();
tcg_gen_mov_i32(t0, value);
gen_reg_ptr_from_index(t1, idx);
tcg_gen_st_i32(t0, t1, 0);
tcg_temp_free_ptr(t1);
tcg_temp_free_i32(t0);
}
GEN_REG_READ(e2k_gen_xreg_read_i64, TCGv_i64, gen_xreg_ptr, tcg_gen_ld_i64)
GEN_REG_READ(e2k_gen_xreg_read_i32, TCGv_i32, gen_xreg_ptr, tcg_gen_ld_i32)
GEN_REG_READ(e2k_gen_xreg_read16u_i32, TCGv_i32, gen_xreg_ptr, tcg_gen_ld16u_i32)
GEN_REG_WRITE(e2k_gen_xreg_write_i64, TCGv_i64, gen_xreg_ptr, tcg_gen_st_i64)
GEN_REG_WRITE(e2k_gen_xreg_write_i32, TCGv_i32, gen_xreg_ptr, tcg_gen_st_i32)
GEN_REG_WRITE(e2k_gen_xreg_write16u_i32, TCGv_i32, gen_xreg_ptr, tcg_gen_st16_i32)