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fix loop breaker condition

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This commit is contained in:
Jörg Thalheim 2015-01-14 10:39:45 +01:00
parent 162bb47d24
commit 922124b0bf
2 changed files with 20 additions and 15 deletions
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21
bericht/rt_folgen.txt
View File

@ -113,21 +113,22 @@
| | DIV_4 |
|---------------------------------+---------------|
|---------------------------+---------------|
| ALU_RES -> BUS_A -> X | N/A |
| ALU_RES -> BUS_A -> ALU_A | SUB - C: SET |
| OLD_X -> BUS_B -> ALU_B | OLD_X_LTE_X_2 |
| | OLD_X_LTE_X_1 |
|---------------------------+---------------|
|---------------------+-----------------|
|---------------------------+----------------------|
| ALU_RES -> BUS_A -> X | N/A |
| ALU_RES -> BUS_A -> ALU_A | SUB - C: SET, Z: SET |
| OLD_X -> BUS_B -> ALU_B | OLD_X_LTE_X_2 |
| | OLD_X_LTE_X_1 | :
|---------------------------+----------------------|
|---------------------+------------------------|
| X -> BUS_A -> OLD_X | N/A |
| | N/A |
| | BC: |
| | -> C=1: DIV_1 |
| | -> C=0: STORE_X |
| | -> C=1 or Z=1: STORE_X |
| | -> C=0: DIV_1 |
| | OLD_X_LTE_X_2 |
|---------------------+-----------------|
|---------------------+------------------------|
|----------------------------+---------|
| X (shifted) -> BUS_A -> DO | DW |

6
cadence/heron_ctrl/functional/verilog.v
View File

@ -89,10 +89,14 @@ module heron_ctrl(
div_to_b_shift_1 = ON;
end
`OLD_X_LTE_X_1: begin
alu_mode = MINUS;
alu_set_c = ON;
alu_set_z = ON;
alu_res_to_a = ON;
a_to_x = ON;
old_x_to_b = ON;
alu_set_c = ON;
end
`OLD_X_LTE_X_2: begin
x_to_a = ON;