URL
https://opencores.org/ocsvn/light8080/light8080/trunk
Subversion Repositories light8080
Compare Revisions
- This comparison shows the changes necessary to convert path
/light8080
- from Rev 76 to Rev 77
- ↔ Reverse comparison
Rev 76 → Rev 77
/trunk/sw/demos/hello/build.bat
6,7 → 6,7
@rem Set the program name. |
@set PROG=hello |
@rem Edit to point to the directory you installed TASM in. |
@set TASM_DIR=..\..\local\tasm |
@set TASM_DIR=..\..\..\local\tasm |
@rem Remove output from previous assembly. |
@del %PROG%.hex |
@del %PROG%.lst |
/trunk/sw/demos/hello/hello.lst
4,7 → 4,7
0004 0000 ; Should be used with SoC vhdl\soc\l80soc.vhdl |
0005 0000 ; Assembler format compatible with TASM for DOS and Linux. |
0006 0000 ;******************************************************************************* |
0007 0000 ; This program will print a Hello message to a 19200/8/N/1 serial port, then |
0007 0000 ; This program will print a Hello message to a 9600/8/N/1 serial port, then |
0008 0000 ; will loop forever copying the input port P1 to the output port P2. |
0009 0000 ; This demo is meant to be used as a starting point for those wanting to play |
0010 0000 ; with the l80soc core -- which in turn is little more than an usage example |
65,8 → 65,8
0065 0069 21 F0 00 lxi h,rx_buffer |
0066 006C 22 EE 00 shld ptr_rx |
0067 006F ; Set up UART baud rate to 9600 bauds @ 50MHz: |
0068 006F ; (50E6 / 16) / 9600 = 325d = 145h |
0069 006F 3E 14 mvi a,14h ; |
0068 006F ; (50E6 / 9600) = 5208d = 1458h |
0069 006F 3E 14 mvi a,14h |
0070 0071 D3 83 out UART_BAUDH |
0071 0073 3E 58 mvi a,58h |
0072 0075 D3 82 out UART_BAUDL |
/trunk/vhdl/soc/uart.vhdl
59,7 → 59,7
-- If the stop bit is not valid (not high) then the interrupt is not |
-- triggered. If a start bit is determined to be spurious (i.e. the falling |
-- edge is detected but the bit value when sampled is not 0) then the |
c |
-- interrupt is not triggered. |
-- This interrupt sets flag RxIrw in the status register. |
-- -# Transmitter interrupt: Raised at the end of the transmission of the stop |
-- bit. |