diff options
| author | Bastian Koppelmann <kbastian@mail.uni-paderborn.de> | 2014-09-01 12:59:54 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-09-01 14:49:21 +0100 |
| commit | d279821074b74a80f984579fd4dfecc87cb8a899 (patch) | |
| tree | 1b3af22874bc1b8a95455649f92f08212ead5977 /target-tricore | |
| parent | 46aa848ffb008ac7da4b3760a38eb7e9a2075308 (diff) | |
target-tricore: Add instructions of SRRS and SLRO opcode format
Add instructions of SSRS and SLRO opcode format.
Add micro-op generator functions for offset loads.
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1409572800-4116-10-git-send-email-kbastian@mail.uni-paderborn.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-tricore')
| -rw-r--r-- | target-tricore/translate.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/target-tricore/translate.c b/target-tricore/translate.c index d8e23fcea3..258f4e4af6 100644 --- a/target-tricore/translate.c +++ b/target-tricore/translate.c @@ -107,6 +107,26 @@ void tricore_cpu_dump_state(CPUState *cs, FILE *f, * Functions to generate micro-ops */ +/* Functions for load/save to/from memory */ + +static inline void gen_offset_ld(DisasContext *ctx, TCGv r1, TCGv r2, + int16_t con, TCGMemOp mop) +{ + TCGv temp = tcg_temp_new(); + tcg_gen_addi_tl(temp, r2, con); + tcg_gen_qemu_ld_tl(r1, temp, ctx->mem_idx, mop); + tcg_temp_free(temp); +} + +static inline void gen_offset_st(DisasContext *ctx, TCGv r1, TCGv r2, + int16_t con, TCGMemOp mop) +{ + TCGv temp = tcg_temp_new(); + tcg_gen_addi_tl(temp, r2, con); + tcg_gen_qemu_st_tl(r1, temp, ctx->mem_idx, mop); + tcg_temp_free(temp); +} + /* Functions for arithmetic instructions */ static inline void gen_add_d(TCGv ret, TCGv r1, TCGv r2) @@ -513,9 +533,17 @@ static void decode_ssr_opc(DisasContext *ctx, int op1) static void decode_16Bit_opc(CPUTriCoreState *env, DisasContext *ctx) { int op1; + int r1, r2; + int32_t const16; + TCGv temp; op1 = MASK_OP_MAJOR(ctx->opcode); + /* handle ADDSC.A opcode only being 6 bit long */ + if (unlikely((op1 & 0x3f) == OPC1_16_SRRS_ADDSC_A)) { + op1 = OPC1_16_SRRS_ADDSC_A; + } + switch (op1) { case OPC1_16_SRC_ADD: case OPC1_16_SRC_ADD_A15: @@ -568,6 +596,37 @@ static void decode_16Bit_opc(CPUTriCoreState *env, DisasContext *ctx) case OPC1_16_SSR_ST_W_POSTINC: decode_ssr_opc(ctx, op1); break; +/* SRRS-format */ + case OPC1_16_SRRS_ADDSC_A: + r2 = MASK_OP_SRRS_S2(ctx->opcode); + r1 = MASK_OP_SRRS_S1D(ctx->opcode); + const16 = MASK_OP_SRRS_N(ctx->opcode); + temp = tcg_temp_new(); + tcg_gen_shli_tl(temp, cpu_gpr_d[15], const16); + tcg_gen_add_tl(cpu_gpr_a[r1], cpu_gpr_a[r2], temp); + tcg_temp_free(temp); + break; +/* SLRO-format */ + case OPC1_16_SLRO_LD_A: + r1 = MASK_OP_SLRO_D(ctx->opcode); + const16 = MASK_OP_SLRO_OFF4(ctx->opcode); + gen_offset_ld(ctx, cpu_gpr_a[r1], cpu_gpr_a[15], const16 * 4, MO_LESL); + break; + case OPC1_16_SLRO_LD_BU: + r1 = MASK_OP_SLRO_D(ctx->opcode); + const16 = MASK_OP_SLRO_OFF4(ctx->opcode); + gen_offset_ld(ctx, cpu_gpr_d[r1], cpu_gpr_a[15], const16, MO_UB); + break; + case OPC1_16_SLRO_LD_H: + r1 = MASK_OP_SLRO_D(ctx->opcode); + const16 = MASK_OP_SLRO_OFF4(ctx->opcode); + gen_offset_ld(ctx, cpu_gpr_d[r1], cpu_gpr_a[15], const16 * 2, MO_LESW); + break; + case OPC1_16_SLRO_LD_W: + r1 = MASK_OP_SLRO_D(ctx->opcode); + const16 = MASK_OP_SLRO_OFF4(ctx->opcode); + gen_offset_ld(ctx, cpu_gpr_d[r1], cpu_gpr_a[15], const16 * 4, MO_LESL); + break; } } |