URL
https://opencores.org/ocsvn/t6507lp/t6507lp/trunk
Subversion Repositories t6507lp
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- This comparison shows the changes necessary to convert path
/t6507lp
- from Rev 194 to Rev 195
- ↔ Reverse comparison
Rev 194 → Rev 195
/trunk/rtl/verilog/t6507lp_fsm.v
241,7 → 241,7
all instructions execute this cycle. |
*/ |
FETCH_LOW: begin |
if (accumulator || implied) begin |
if (accumulator || implied || txs || tsx) begin |
pc <= pc; // is this better? |
address <= pc; |
mem_rw <= MEM_READ; |
605,15 → 605,17
alu_a = temp_data; |
end |
FETCH_LOW: begin |
if (accumulator || implied) begin |
if (accumulator || implied || txs) begin |
alu_opcode = ir; |
alu_enable = 1'b1; |
next_state = FETCH_OP; |
|
if (tsx) begin |
alu_a = sp[7:0]; |
end |
end |
else if (tsx) begin |
alu_opcode = ir; |
alu_enable = 1'b1; |
next_state = FETCH_OP; |
alu_a = sp[7:0]; |
end |
else if (immediate) begin |
next_state = FETCH_OP_CALC_PARAM; |
end |