diff --git a/rtl/Makefile b/rtl/Makefile
index cabab992c7..2711633372 100644
--- a/rtl/Makefile
+++ b/rtl/Makefile
@@ -611,6 +611,9 @@ endif
 ifeq ($(CPU_OS_TARGET),mipsel-android)
 override TARGET_DIRS+=android
 endif
+ifeq ($(CPU_OS_TARGET),mipsel-ps1)
+override TARGET_DIRS+=ps1
+endif
 ifeq ($(CPU_OS_TARGET),mips64-linux)
 override TARGET_DIRS+=linux
 endif
@@ -2272,6 +2275,9 @@ endif
 ifeq ($(CPU_OS_TARGET),mipsel-android)
 TARGET_DIRS_ANDROID=1
 endif
+ifeq ($(CPU_OS_TARGET),mipsel-ps1)
+TARGET_DIRS_PS1=1
+endif
 ifeq ($(CPU_OS_TARGET),mips64-linux)
 TARGET_DIRS_LINUX=1
 endif
@@ -3937,6 +3943,51 @@ freertos:
 	$(MAKE) -C freertos all
 .PHONY: freertos_all freertos_debug freertos_smart freertos_release freertos_units freertos_examples freertos_shared freertos_install freertos_sourceinstall freertos_exampleinstall freertos_distinstall freertos_zipinstall freertos_zipsourceinstall freertos_zipexampleinstall freertos_zipdistinstall freertos_clean freertos_distclean freertos_cleanall freertos_info freertos_makefiles freertos
 endif
+ifdef TARGET_DIRS_PS1
+ps1_all:
+	$(MAKE) -C ps1 all
+ps1_debug:
+	$(MAKE) -C ps1 debug
+ps1_smart:
+	$(MAKE) -C ps1 smart
+ps1_release:
+	$(MAKE) -C ps1 release
+ps1_units:
+	$(MAKE) -C ps1 units
+ps1_examples:
+	$(MAKE) -C ps1 examples
+ps1_shared:
+	$(MAKE) -C ps1 shared
+ps1_install:
+	$(MAKE) -C ps1 install
+ps1_sourceinstall:
+	$(MAKE) -C ps1 sourceinstall
+ps1_exampleinstall:
+	$(MAKE) -C ps1 exampleinstall
+ps1_distinstall:
+	$(MAKE) -C ps1 distinstall
+ps1_zipinstall:
+	$(MAKE) -C ps1 zipinstall
+ps1_zipsourceinstall:
+	$(MAKE) -C ps1 zipsourceinstall
+ps1_zipexampleinstall:
+	$(MAKE) -C ps1 zipexampleinstall
+ps1_zipdistinstall:
+	$(MAKE) -C ps1 zipdistinstall
+ps1_clean:
+	$(MAKE) -C ps1 clean
+ps1_distclean:
+	$(MAKE) -C ps1 distclean
+ps1_cleanall:
+	$(MAKE) -C ps1 cleanall
+ps1_info:
+	$(MAKE) -C ps1 info
+ps1_makefiles:
+	$(MAKE) -C ps1 makefiles
+ps1:
+	$(MAKE) -C ps1 all
+.PHONY: ps1_all ps1_debug ps1_smart ps1_release ps1_units ps1_examples ps1_shared ps1_install ps1_sourceinstall ps1_exampleinstall ps1_distinstall ps1_zipinstall ps1_zipsourceinstall ps1_zipexampleinstall ps1_zipdistinstall ps1_clean ps1_distclean ps1_cleanall ps1_info ps1_makefiles ps1
+endif
 ifdef TARGET_DIRS_JAVA
 java_all:
 	$(MAKE) -C java all
diff --git a/rtl/Makefile.fpc b/rtl/Makefile.fpc
index 341413a413..7385539b60 100644
--- a/rtl/Makefile.fpc
+++ b/rtl/Makefile.fpc
@@ -57,6 +57,7 @@ dirs_msxdos=msxdos
 dirs_sinclairql=sinclairql
 dirs_wasi=wasi
 dirs_human68k=human68k
+dirs_ps1=ps1
 
 [install]
 fpcpackage=y