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8 Commits

Author SHA1 Message Date
Richard Henderson 39cf386458 target/microblaze: Convert dec_bit to decodetree 
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2020-09-01 07:41:38 -07:00
Richard Henderson b1354342c1 target/microblaze: Convert dec_div to decodetree 
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2020-09-01 07:41:38 -07:00
Richard Henderson 97955ceb42 target/microblaze: Convert dec_mul to decodetree 
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2020-09-01 07:41:38 -07:00
Richard Henderson cb0a0a4c86 target/microblaze: Convert dec_and, dec_or, dec_xor to decodetree 
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2020-09-01 07:41:38 -07:00
Richard Henderson 607f576762 target/microblaze: Convert dec_pattern to decodetree 
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2020-09-01 07:41:38 -07:00
Richard Henderson a2b0b90e79 target/microblaze: Convert dec_sub to decodetree 
Use tcg_gen_add2_i32 for computing carry.
This removes the last use of helper_carry, so remove that.

Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2020-09-01 07:41:38 -07:00
Richard Henderson 2080017965 target/microblaze: Convert dec_add to decodetree 
Adds infrastrucure for translation of instructions, which could
not be added before their first use.  Cache a temporary which
represents r0 as the immediate 0 value, or a sink.

Move the special case of opcode_0_illegal from old_decode()
into decodetree as well, lest this get interpreted as add.

Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2020-09-01 07:41:38 -07:00
Richard Henderson 44d1432ba2 target/microblaze: Add decodetree infrastructure 
The new interface is a stub that recognizes no instructions.
It falls back to the old decoder for all instructions.

Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2020-09-01 07:41:38 -07:00