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60 Selection of memory model or implementation memory is now made on minsoc_bench_defines.v. It is done by a definition instead of including different files for simulation.

minsoc_bench_defines.v definition of reset level was not correct. It based the level decision on defineds POSITIVE_RESET or NEGATIVE_RESET, which couldn't be defined by then, since minsoc_defines.v is not included in minsoc_bench_defines.v. The decision has been moved to minsoc_bench.v and made a localparam instead of a definition.
rfajardo 3151d 15h /
59 undefinition of NEGATIVE_RESET on minsoc_bench_defines.v cannot affect other inclusions of minsoc_defines.v. Instead, the testbench now works with the right reset level to avoid the implementation ordering problem. rfajardo 3151d 15h /
58 Standard definitions depended on implementation order. Now, this should be solved.

minsoc_bench_defines.v: when setting reset to be positive (`define POSITIVE_RESET), NEGATIVE_RESET is undefined. This override the implementation order, so that independent of it, POSITIVE_RESET will be used.

minsoc_defines.v: when setting GENERIC_FPGA, FPGA_TAP and FPGA_CLOCK_DIVISION are undefined. This way, even if FPGA_TAP would come prior to GENERIC_TAP on the correspondent implementation, GENERIC_TAP would still be selected.

IMPORTANT: GENERIC_MEMORY must still be implemented first on minsoc_onchip_ram.v, because FPGA's memory is automatically selected from other definitions and cannot be undefined a priori. Since some other memory types can be selected, there is no trivial solution. However, this shouldn't be a big problem, since the beginning of this file will probably not be modified.
rfajardo 3151d 16h /
57 If a FPGA manufacturer is selected, the FPGA families of other manufacturers are automatically ignored.

Some updated to comments.

CLOCK_DIVISOR back to 5. The number does not matter much, but 1 is a bad standard number, since it should never be selected. Comment says, use NO_CLOCK_DIVISION instead.

Changing standard FPGA back to Xilinx and Spartan3A. I'm only doing this because the synthesis examples page of wiki still assume this FPGA to be standardly selected.
rfajardo 3151d 16h /
56 Macros for all Altera family devices and pll instantiation javieralso 3158d 15h /
55 Adjusting Makefiles to compile correctly with new firmware updates.

1) except.o not included into libsupport.a.
2) libsupport.a linked to except.o, now in correct order: ld libsupport.a except.o -o executable (not the other way around)
3) int.c was not being compiled because of a #ifdef which is not set anywhere
rfajardo 3159d 23h /
54 Moving spr_defs.h to or1200.h ConX. 3160d 01h /
53 Indentation, deleting redundant files and adding externals ConX. 3160d 02h /
52 Altera ALTPLL Megafunction Instantiation javieralso 3168d 16h /
51 sw/support/uart.c: Changing the order of writes to the Divisor Latch of UART. (Thanks Ramkumar) rfajardo 3175d 05h /
50 Removing unused firmware files, respective to or1ksim actually.

Removing the inclusion of the removed file mc.h in reset.S, probably required by or1ksim at some point.

Reworked except.S to use a macro instead of repeating the same procedure 16 times or so. Explanation added to the macro as a leading comment.
rfajardo 3187d 01h /
49 Language correction for README.txt. rfajardo 3188d 23h /
48 Clear some old docs that are already ported to MinSOC's Wiki ConX. 3189d 00h /
47 Firmware updated to work with gcc-4.5. It is actually working just fine and gcc-4.5 assembly code seems a lot cleaner.

I noticed that by increasing the free stack space for the interrupt handler by 130 made the resulting firmware not work. I assume it is because 130 is not aligned 130%4 = 2 and the stack simply does not work then. Instead I'm freeing the previous 116 plus 128 (for 32 registers as mentioned by Jeremy) and it works.
rfajardo 3189d 23h /
46 Including an explanation of what has to be updated on gpio to port it smoothly to minsoc. rfajardo 3190d 03h /
45 A more stable version ConX. 3190d 18h /
44 Fixing some bugs. But it still works only in Debian/Ubuntu ConX. 3190d 20h /
43 Making some changes to MinSOC install script ConX. 3191d 16h /
42 Tagging release 0.9 of MinSoC. rfajardo 3195d 23h /
41 Including setup scripts to install all required tools to work with minsoc and to download all required sources. Thanks for the contribution of Xanthopoulos Constantinos. rfajardo 3195d 23h /

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