diff options
| -rw-r--r-- | Makefile | 40 | ||||
| -rw-r--r-- | design/pins.pcf | 65 | ||||
| -rwxr-xr-x | design/rom.s.tcl | 54 |
3 files changed, 155 insertions, 4 deletions
@@ -3,6 +3,15 @@ CFLAGS = -std=c89 -pedantic -Wall -Werror -O2 IV = iverilog +YOSYS = git-yosys +PNR = git-nextpnr-ice40 +ICEPACK = git-icepack +ICETIME = git-icetime + +TOPMODULE = soc + +PCF = design/pins.pcf + IVFLAGS = -Iinclude/ -DSIMULATION # The macroassembly header file is somewhat different thing, but I don't know # what place would be more suitable for it than include/ dir @@ -57,7 +66,7 @@ TEST_LOGS := $(foreach TEST,$(TESTS),tests/$(TEST)/report.log) TOOLS_TARGETS := $(addprefix tools/,$(TOOLS)) -GENERATED_MEM_FILES := $(shell find tests/ -name "*.s.tcl") +GENERATED_MEM_FILES := $(shell find . -name "*.s.tcl") GENERATED_MEM_FILES := $(basename $(basename $(GENERATED_MEM_FILES))) GENERATED_MEM_FILES += $(basename $(shell find tests/ -name "*.memv")) GENERATED_MEM_FILES := $(addsuffix .mem,$(GENERATED_MEM_FILES)) @@ -65,12 +74,35 @@ GENERATED_MEM_FILES := $(addsuffix .mem,$(GENERATED_MEM_FILES)) # TODO: check if this function can be changed to use $(shell grep ...) FILE_LINES = `grep -E '^[[:space:]]*[^[:space:]/]' -c $(1)` +all : design.bin + + +design.v : design/rom.mem design/*.v + $(IV) -E $(filter %.v,$^) -DROM_WORDS_COUNT=$(call FILE_LINES,$<) -o $@ + +design.json : design.v design/rom.mem design/font.mem + $(YOSYS) -p 'read_verilog -defer $<' \ + -p 'synth_ice40 -top $(TOPMODULE) -json $@' + +design.asc : design.json $(PCF) + $(PNR) --hx8k --asc $@ --pcf $(PCF) --json $< --package ct256 + +design.bin : design.asc + $(ICEPACK) $< $@ + +timing.rpt : design.asc + $(ICETIME) -d hx8k -mtr $@ $< + +prog : design.bin + sudo iceprogduino $< + + test : $(TEST_TARGETS) tests/%.mem : tests/%.memv $(IV) $(MACROASM_FLAGS) $^ -o $@ -tests/%.mem : tests/%.s.tcl tclasm.tcl +%.mem : %.s.tcl tclasm.tcl $< > $@ tests/self/test.vvp : tests/self/operations.mem tests/self/test.v \ @@ -152,7 +184,7 @@ clean : -find tests/ -name "VGAdump.mem" -delete -find tests/ -name "VGAdump.ppm" -delete -rm $(GENERATED_MEM_FILES) - -rm tests + -rm design.json design.v design.asc design.bin timing.rpt -rm $(TOOLS_TARGETS) -.PHONY : tools test $(TEST_TARGETS) +.PHONY : all tools test $(TEST_TARGETS) diff --git a/design/pins.pcf b/design/pins.pcf new file mode 100644 index 0000000..fabcd9c --- /dev/null +++ b/design/pins.pcf @@ -0,0 +1,65 @@ +set_io clock_100mhz J3 + +set_io button1 K11 # actually used as reset +set_io button2 P13 + +set_io led1 M12 +set_io led2 R16 + +set_io vga_hs J4 +set_io vga_vs H2 +set_io vga_red[0] F3 +set_io vga_red[1] H5 +set_io vga_red[2] E3 +set_io vga_green[0] H6 +set_io vga_green[1] F2 +set_io vga_green[2] H3 +set_io vga_blue[0] G2 +set_io vga_blue[1] H4 +set_io vga_blue[2] F1 + +set_io sram_addr[0] N6 +set_io sram_addr[1] T1 +set_io sram_addr[2] P4 +set_io sram_addr[3] R2 +set_io sram_addr[4] N5 +set_io sram_addr[5] T2 +set_io sram_addr[6] P5 +set_io sram_addr[7] R3 +set_io sram_addr[8] R5 +set_io sram_addr[9] T3 +set_io sram_addr[10] R4 +set_io sram_addr[11] M7 +set_io sram_addr[12] N7 +set_io sram_addr[13] P6 +set_io sram_addr[14] M8 +set_io sram_addr[15] T5 +set_io sram_addr[16] R6 +set_io sram_addr[17] P8 + +set_io sram_io[0] T8 +set_io sram_io[1] P7 +set_io sram_io[2] N9 +set_io sram_io[3] T9 +set_io sram_io[4] M9 +set_io sram_io[5] R9 +set_io sram_io[6] K9 +set_io sram_io[7] P9 +set_io sram_io[8] R10 +set_io sram_io[9] L10 +set_io sram_io[10] P10 +set_io sram_io[11] N10 +set_io sram_io[12] T10 +set_io sram_io[13] T11 +set_io sram_io[14] T15 +set_io sram_io[15] T14 + +set_io sram_cs_n T6 +set_io sram_oe_n L9 +set_io sram_we_n T7 + +# SPI to on-board chip +#set_io sdo P12 +#set_io sdi P11 +#set_io sck R11 +#set_io ss_n R12 diff --git a/design/rom.s.tcl b/design/rom.s.tcl new file mode 100755 index 0000000..db142a0 --- /dev/null +++ b/design/rom.s.tcl @@ -0,0 +1,54 @@ +#!/usr/bin/env tclsh + +source tclasm.tcl + +## also look at stack_machine_cond_jump test + +## we're going to write numbers from 0 to 639 at addresses h100000 to h1009FC +## and then write non-zero value at h100A00 + +# this will translate to 3 16-bit instructions +set_sp h0FFFFC + +## set up the counter +# each of those 2 will translate to 1 16-bit instruction +const 0 +stack down + +## this is the point we later jump to, address 10 + +tee +## compute address: counter * 4 + h100000 +stack down +const 4 +mul +const h100000 +add +stack up +## load computed address to im +exchange_im +## save value of counter at address pointed by im +swap +store +swap +## increase counter by 1 +const 1 +add +## compare value of counter to 640 +tee +stack down +const 640 +sub +stack up +## loop if counter != 640 +cond_jump 10 + +## write hFFFFFFFF to address h100A00 (the point is to write a non-zero value +## there, but because our stack machine only knows how to write 32-bit values +## to memory, we'll write to h100A00 and h100A02, both being mapped as the +## VGA power-on register - what matters is the later write, so at least one of +## higher 16 bits of written value has to be non-zero) +const -1 +store@ h100A00 + +halt |