diff --git a/common.mk b/common.mk
index 8507d9b0..933f7bed 100644
--- a/common.mk
+++ b/common.mk
@@ -320,8 +320,14 @@ else ifneq ($(LOADMEM),)
 get_loadmem_flag = +loadmem=$(LOADMEM)
 endif
 
+ifneq ($(LOADARCH),_)
+get_loadarch_flag = +loadarch=$(subst mem.elf,loadarch,$(1))
+endif
+
 # get the output path base name for simulation outputs, First arg is the binary
 get_sim_out_name = $(output_dir)/$(call get_out_name,$(1))
+# sim flags that are common to run-binary/run-binary-fast/run-binary-debug
+get_common_sim_flags = $(SIM_FLAGS) $(EXTRA_SIM_FLAGS) $(SEED_FLAG) $(call get_loadmem_flag,$(1)) $(call get_loadarch_flag,$(1))
 
 .PHONY: %.run %.run.debug %.run.fast
 
@@ -330,14 +336,14 @@ run-binary: $(BINARY).run check-binary
 run-binaries: $(addsuffix .run,$(BINARIES)) check-binaries
 
 %.run: %.check-exists $(SIM_PREREQ) | $(output_dir)
-	(set -o pipefail && $(NUMA_PREFIX) $(sim) $(PERMISSIVE_ON) $(SIM_FLAGS) $(EXTRA_SIM_FLAGS) $(call get_loadmem_flag,$*) $(SEED_FLAG) $(VERBOSE_FLAGS) $(PERMISSIVE_OFF) $* </dev/null 2> >(spike-dasm > $(call get_sim_out_name,$*).out) | tee $(call get_sim_out_name,$*).log)
+	(set -o pipefail && $(NUMA_PREFIX) $(sim) $(PERMISSIVE_ON) $(call get_common_sim_flags,$*) $(VERBOSE_FLAGS) $(PERMISSIVE_OFF) $* </dev/null 2> >(spike-dasm > $(call get_sim_out_name,$*).out) | tee $(call get_sim_out_name,$*).log)
 
 # run simulator as fast as possible (no insn disassembly)
 run-binary-fast: $(BINARY).run.fast check-binary
 run-binaries-fast: $(addsuffix .run.fast,$(BINARIES)) check-binaries
 
 %.run.fast: %.check-exists $(SIM_PREREQ) | $(output_dir)
-	(set -o pipefail && $(NUMA_PREFIX) $(sim) $(PERMISSIVE_ON) $(SIM_FLAGS) $(EXTRA_SIM_FLAGS) $(call get_loadmem_flag,$*) $(SEED_FLAG) $(PERMISSIVE_OFF) $* </dev/null | tee $(call get_sim_out_name,$*).log)
+	(set -o pipefail && $(NUMA_PREFIX) $(sim) $(PERMISSIVE_ON) $(call get_common_sim_flags,$*) $(PERMISSIVE_OFF) $* </dev/null | tee $(call get_sim_out_name,$*).log)
 
 # run simulator with as much debug info as possible
 run-binary-debug: $(BINARY).run.debug check-binary
@@ -347,7 +353,7 @@ run-binaries-debug: $(addsuffix .run.debug,$(BINARIES)) check-binaries
 ifneq (none,$*)
 	riscv64-unknown-elf-objdump -D $* > $(call get_sim_out_name,$*).dump
 endif
-	(set -o pipefail && $(NUMA_PREFIX) $(sim_debug) $(PERMISSIVE_ON) $(SIM_FLAGS) $(EXTRA_SIM_FLAGS) $(call get_loadmem_flag,$*) $(SEED_FLAG) $(VERBOSE_FLAGS) $(call get_waveform_flag,$(call get_sim_out_name,$*)) $(PERMISSIVE_OFF) $* </dev/null 2> >(spike-dasm > $(call get_sim_out_name,$*).out) | tee $(call get_sim_out_name,$*).log)
+	(set -o pipefail && $(NUMA_PREFIX) $(sim_debug) $(PERMISSIVE_ON) $(call get_common_sim_flags,$*) $(VERBOSE_FLAGS) $(call get_waveform_flag,$(call get_sim_out_name,$*)) $(PERMISSIVE_OFF) $* </dev/null 2> >(spike-dasm > $(call get_sim_out_name,$*).out) | tee $(call get_sim_out_name,$*).log)
 
 run-fast: run-asm-tests-fast run-bmark-tests-fast
 
diff --git a/variables.mk b/variables.mk
index d4823377..f4e3d3c9 100644
--- a/variables.mk
+++ b/variables.mk
@@ -254,10 +254,10 @@ LOADMEM ?=
 LOADARCH ?=
 
 ifneq ($(LOADARCH),)
-override BINARY = $(LOADARCH)/mem.elf
-override get_out_name = $(shell basename $(LOADARCH))
+override BINARY = $(addsuffix /mem.elf,$(LOADARCH))
+override BINARIES = $(addsuffix /mem.elf,$(LOADARCH))
+override get_out_name = $(shell basename $(dir $(1)))
 override LOADMEM = 1
-override SIM_FLAGS += +loadarch=$(LOADARCH)/loadarch
 endif
 
 #########################################################################################