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Modified RV32F instructions to support 64-bit register file and added RV64F ISA extension

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This commit is contained in:
Santosh Raghav Srivatsan
2021-12-06 18:55:13 -05:00
parent 30a0d34151
commit e6eda67d0c
21 changed files with 459 additions and 316 deletions
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13
runtime/Makefile
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@@ -1,15 +1,14 @@
# RISCV_TOOLCHAIN_PATH ?= /opt/riscv-gnu-toolchain
RISCV_TOOLCHAIN_PATH = /nethome/ssrivatsan8/riscv32
RISCV_TOOLCHAIN_PATH ?= /opt/riscv-gnu-toolchain
# simx64
RISCV64_TOOLCHAIN_PATH ?= /nethome/ssrivatsan8/riscv
CC = $(RISCV64_TOOLCHAIN_PATH)/bin/riscv64-unknown-elf-gcc
AR = $(RISCV64_TOOLCHAIN_PATH)/bin/riscv64-unknown-elf-gcc-ar
DP = $(RISCV64_TOOLCHAIN_PATH)/bin/riscv64-unknown-elf-objdump
CP = $(RISCV64_TOOLCHAIN_PATH)/bin/riscv64-unknown-elf-objcopy
CC = $(RISCV_TOOLCHAIN_PATH)/bin/riscv32-unknown-elf-gcc
AR = $(RISCV_TOOLCHAIN_PATH)/bin/riscv32-unknown-elf-gcc-ar
DP = $(RISCV_TOOLCHAIN_PATH)/bin/riscv32-unknown-elf-objdump
CP = $(RISCV_TOOLCHAIN_PATH)/bin/riscv32-unknown-elf-objcopy
CFLAGS += -O3 -march=rv64imfd -mabi=lp64d -Wstack-usage=1024 -fno-exceptions -fdata-sections -ffunction-sections
CFLAGS += -O3 -march=rv32imf -mabi=ilp32f -Wstack-usage=1024 -fno-exceptions -fdata-sections -ffunction-sections
CFLAGS += -I./include -I../hw
PROJECT = libvortexrt

4
runtime/src/vx_start.S
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@@ -23,13 +23,13 @@ _start:
call memset
# Register global termination functions
la a0, __libc_fini_array
# la a0, __libc_fini_array
# to be called upon exit
call atexit
# Run global initialization functions
call __libc_init_array
# call __libc_init_array
# call main program routine
call main