URL
https://opencores.org/ocsvn/nextz80/nextz80/trunk
Subversion Repositories nextz80
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- This comparison shows the changes necessary to convert path
/nextz80
- from Rev 12 to Rev 13
- ↔ Reverse comparison
Rev 12 → Rev 13
/trunk/NextZ80CPU.v
171,7 → 171,7
else |
if(FETCH[9:6] == 4'b1110) {FETCH[9:7]} <= 3'b000; // exit RESET state |
else begin |
if(M1) |
if(M1 || (fetch98 == 2'b10)) // [DD/FD CB disp op] - M1 is inactive during <op> byte read, but FETCH is performed |
case({MREQ, CPUStatus[9:8]}) |
3'b000, 3'b001, 3'b100, 3'b101, 3'b110, 3'b111: FETCH <= {fetch98, DI}; |
3'b010: FETCH <= {fetch98, 8'hff}; // IM1 - RST38 |
906,6 → 906,7
ALU160_SEL = 1; // PC |
WE = 6'b010000; // PC |
fetch98 = 2'b10; |
M1 = !CPUStatus[4]; // [DD/FD CB disp op] - M1 is inactive during <op> byte read |
end |
2'b01: begin |
ALU160_SEL = 1; // PC |