diff options
| author | Alejandro Soto <alejandro@34project.org> | 2022-11-16 13:51:52 -0600 |
|---|---|---|
| committer | Alejandro Soto <alejandro@34project.org> | 2022-11-16 13:51:58 -0600 |
| commit | a94c52d5117645016ee319abc30c92f137a4b17e (patch) | |
| tree | 6a3b7e40433458b398620c831f85a43ac111812f /rtl/core/decode/mux.sv | |
| parent | 79e13c76cb59250ef07d79f28e1b3356418ed4cd (diff) | |
Finish decode of psr operations
Diffstat (limited to 'rtl/core/decode/mux.sv')
| -rw-r--r-- | rtl/core/decode/mux.sv | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/rtl/core/decode/mux.sv b/rtl/core/decode/mux.sv index d740e94..e8d930e 100644 --- a/rtl/core/decode/mux.sv +++ b/rtl/core/decode/mux.sv @@ -52,13 +52,15 @@ module core_decode_mux undefined, conditional, writeback, - update_flags, branch, ldst, mul, coproc, spsr, psr_write, + psr_wr_flags, + psr_wr_control, + update_flags, restore_spsr, snd_is_imm, snd_ror_if_imm, @@ -79,6 +81,8 @@ module core_decode_mux spsr = 0; psr_write = 0; update_flags = 0; + psr_wr_flags = 1; + psr_wr_control = 1; dec_data = {($bits(dec_data)){1'bx}}; dec_data.uses_rn = 1; @@ -185,6 +189,7 @@ module core_decode_mux dec_data.rd = mrs_rd; dec_data.uses_rn = 0; + spsr = mrs_spsr; writeback = 1; conditional = 1; end @@ -196,8 +201,12 @@ module core_decode_mux snd_ror_if_imm = 1; snd_shift_by_reg_if_reg = 0; + spsr = msr_spsr; dec_snd = snd; + psr_write = 1; conditional = 1; + psr_wr_flags = msr_fields.f; + psr_wr_control = msr_fields.c; end /*`GROUP_SWP: ; |