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Lays groundword for Rv64i extension

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Some base files had to be modified to support 64-bit architecture
as well as the Makefile to load 64-bit words into memory
This commit is contained in:
Albin Chaboissier
2025-11-10 16:38:40 +01:00
parent cbfd806444
commit 9daa296892
26 changed files with 198 additions and 94 deletions
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8
Makefile
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@@ -46,10 +46,11 @@ MEM_TESTS = $(addprefix test-, $(addprefix $(MEM_DIR)/, $(addsuffix .mem, $(base
PREFIX := $(shell command -v riscv64-unknown-elf-gcc >/dev/null 2>&1 && echo riscv64-unknown-elf- || echo /matieres/3MMFMN/riscv32/bin/riscv32-unknown-elf-)
CC := $(PREFIX)gcc
OBJDUMP := $(PREFIX)objdump
OBJCOPY := $(PREFIX)objcopy
OBTOMEM := common/objtomem.awk
## Flags
ASFLAGS :=-march=rv32i -mabi=ilp32 -ffreestanding -nostdlib -T $(BENCH_DIR)/link.ld
ASFLAGS :=-march=rv64i -mabi=lp64 -ffreestanding -nostdlib -T $(BENCH_DIR)/link.ld
CFLAGS :=$(ASFLAGS)
ELFFLAGS :=$(ASFLAGS) $(MEM_DIR)/crt.o -Os -fno-unroll-loops
ODFLAGS :=-j .text -j .rodata -j .data -s
@@ -70,7 +71,10 @@ $(MEM_DIR)/%.elf: $(BENCH_DIR)/%.c $(MEM_DIR)/crt.o |$(MEM_DIR)
$(MEM_DIR)/%.elf: $(BENCH_DIR)/%.s |$(MEM_DIR)
$(CC) $(CFLAGS) -o $@ $<
$(MEM_DIR)/%.mem: $(MEM_DIR)/%.elf |$(MEM_DIR)
$(OBJDUMP) $(ODFLAGS) $< | awk -f $(OBTOMEM) | awk -f common/fix_mem.awk > $@
$(OBJCOPY) -O binary --verilog-data-width 8 $< $@.bin
python3 common/swap_endian.py $@.bin $@.bin.swapped 8
$(OBJCOPY) -I binary -O verilog --verilog-data-width 8 $@.bin.swapped $@
rm $@.bin $@.bin.swapped
test-$(MEM_DIR)/%.mem: $(MEM_DIR)/%.mem |$(MEM_DIR)
@PROG="$(shell echo $< | sed "s/^bench\/mem\///g" | sed "s/\.mem$$//g")" PROOT=$(shell pwd) ./mill TPchisel.test.testOnly $(TOP_REP).$(TOP_TEST) -- -z "$(shell echo $< | sed "s/^bench\/mem\///g" | sed "s/\.mem$$//g")"