From f330433b3633647b047cfa418c2ca4d18fda69c7 Mon Sep 17 00:00:00 2001 From: Bastian Koppelmann Date: Fri, 15 Mar 2019 14:51:40 +0100 Subject: [PATCH] target/riscv: Fix manually parsed 16 bit insn during the refactor to decodetree we removed the manual decoding that is necessary for c.jal/c.addiw and removed the translation of c.flw/c.ld and c.fsw/c.sd. This reintroduces the manual parsing and the omited implementation. Signed-off-by: Bastian Koppelmann Tested-by: Palmer Dabbelt Reviewed-by: Alistair Francis Tested-by: Alistair Francis Signed-off-by: Palmer Dabbelt --- target/riscv/insn_trans/trans_rvc.inc.c | 30 ++++++++++++++++++++----- 1 file changed, 25 insertions(+), 5 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvc.inc.c b/target/riscv/insn_trans/trans_rvc.inc.c index bcdf64d3b7..5819f53f90 100644 --- a/target/riscv/insn_trans/trans_rvc.inc.c +++ b/target/riscv/insn_trans/trans_rvc.inc.c @@ -44,10 +44,19 @@ static bool trans_c_flw_ld(DisasContext *ctx, arg_c_flw_ld *a) { #ifdef TARGET_RISCV32 /* C.FLW ( RV32FC-only ) */ - return false; + REQUIRE_FPU; + REQUIRE_EXT(ctx, RVF); + + arg_c_lw tmp; + decode_insn16_extract_cl_w(&tmp, ctx->opcode); + arg_flw arg = { .rd = tmp.rd, .rs1 = tmp.rs1, .imm = tmp.uimm }; + return trans_flw(ctx, &arg); #else /* C.LD ( RV64C/RV128C-only ) */ - return false; + arg_c_fld tmp; + decode_insn16_extract_cl_d(&tmp, ctx->opcode); + arg_ld arg = { .rd = tmp.rd, .rs1 = tmp.rs1, .imm = tmp.uimm }; + return trans_ld(ctx, &arg); #endif } @@ -67,10 +76,19 @@ static bool trans_c_fsw_sd(DisasContext *ctx, arg_c_fsw_sd *a) { #ifdef TARGET_RISCV32 /* C.FSW ( RV32FC-only ) */ - return false; + REQUIRE_FPU; + REQUIRE_EXT(ctx, RVF); + + arg_c_sw tmp; + decode_insn16_extract_cs_w(&tmp, ctx->opcode); + arg_fsw arg = { .rs1 = tmp.rs1, .rs2 = tmp.rs2, .imm = tmp.uimm }; + return trans_fsw(ctx, &arg); #else /* C.SD ( RV64C/RV128C-only ) */ - return false; + arg_c_fsd tmp; + decode_insn16_extract_cs_d(&tmp, ctx->opcode); + arg_sd arg = { .rs1 = tmp.rs1, .rs2 = tmp.rs2, .imm = tmp.uimm }; + return trans_sd(ctx, &arg); #endif } @@ -88,7 +106,9 @@ static bool trans_c_jal_addiw(DisasContext *ctx, arg_c_jal_addiw *a) { #ifdef TARGET_RISCV32 /* C.JAL */ - arg_jal arg = { .rd = 1, .imm = a->imm }; + arg_c_j tmp; + decode_insn16_extract_cj(&tmp, ctx->opcode); + arg_jal arg = { .rd = 1, .imm = tmp.imm }; return trans_jal(ctx, &arg); #else /* C.ADDIW */