diff options
| author | Alejandro Soto <alejandro@34project.org> | 2022-11-06 15:12:26 -0600 |
|---|---|---|
| committer | Alejandro Soto <alejandro@34project.org> | 2022-11-06 15:12:26 -0600 |
| commit | 5c73dd29b6629a37539ccb638a62d0a376f15bcb (patch) | |
| tree | b4351254828ab34b758e94f27aad5cd60f3d3f3f /rtl/core/control/control.sv | |
| parent | f4529ea2a6511f668fadbbc308439bcff6c9c53b (diff) | |
Move flag update logic to writeback.sv
Diffstat (limited to 'rtl/core/control/control.sv')
| -rw-r--r-- | rtl/core/control/control.sv | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/rtl/core/control/control.sv b/rtl/core/control/control.sv index fa4510c..ec8f773 100644 --- a/rtl/core/control/control.sv +++ b/rtl/core/control/control.sv @@ -54,7 +54,7 @@ module core_control coproc ); - logic final_update_flags, ldst, ldst_pre, ldst_increment, + logic ldst, ldst_pre, ldst_increment, ldst_writeback, pop_valid, exception, high_vectors; logic[2:0] vector_offset; @@ -114,7 +114,7 @@ module core_control .* ); - logic final_writeback; + logic final_writeback, final_update_flags; reg_num final_rd; core_control_writeback ctrl_wb @@ -126,13 +126,10 @@ module core_control vector_offset = 3'b001; //TODO always_ff @(posedge clk) begin - update_flags <= 0; wb_alu_flags <= alu_flags; unique case(next_cycle) - ISSUE: begin - final_update_flags <= 0; - + ISSUE: if(issue) begin ra <= dec_data.rn; rb <= dec_snd.r; @@ -154,13 +151,8 @@ module core_control mem_regs <= dec_ldst.regs; mem_write <= !dec_ldst.load; - - final_update_flags <= dec.update_flags; end - update_flags <= final_update_flags; - end - RD_INDIRECT_SHIFT: rb <= r_shift; @@ -187,12 +179,7 @@ module core_control BASE_WRITEBACK: ; - EXCEPTION: - //TODO: spsr_<mode> = cpsr - //TODO: actualizar modo - //TODO: deshabilitar IRQs/FIQs dependiendo de modo - //TODO: Considerar que data abort usa + 8, no + 4 - final_update_flags <= 0; + EXCEPTION: ; endcase end |