diff --git a/src/mame/drivers/pimps.cpp b/src/mame/drivers/pimps.cpp
index e7d2cbf5918..6370b8c3724 100644
--- a/src/mame/drivers/pimps.cpp
+++ b/src/mame/drivers/pimps.cpp
@@ -4,7 +4,7 @@
 
 P.I.M.P.S. (Personal Interactive MicroProcessor System)
 
-06/12/2009 Skeleton driver.
+2009-12-06 Skeleton driver.
 
 No schematics or hardware info available.
 
@@ -57,7 +57,7 @@ Assembler:
  8-bit values MUST contain two hex digits or one quoted character. 16-bit
  constants MUST contain four hex digits or two quoted characters.
 
- Use 'S' instead if 'SP', eg: LXI S,$1000
+ Use 'S' instead of 'SP', eg: LXI S,$1000
 
  Only EQU, DB, DW and END directives are supported. An END statement is
  REQUIRED (otherwise you get the message '?tab-ful' as it fills the symbol
diff --git a/src/mame/drivers/sacstate.cpp b/src/mame/drivers/sacstate.cpp
index 5f0e7a9c912..ac758bab949 100644
--- a/src/mame/drivers/sacstate.cpp
+++ b/src/mame/drivers/sacstate.cpp
@@ -147,7 +147,7 @@ void sacstate_state::sacstate(machine_config &config)
 
 /* ROM definition */
 ROM_START( sacstate )
-	ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+	ROM_REGION( 0x0800, "maincpu", 0 )
 	ROM_LOAD( "sacst1.bin", 0x0700, 0x0100, CRC(ba020160) SHA1(6337cdf65583808768664653c937e50040aec6d4))
 	ROM_LOAD( "sacst2.bin", 0x0600, 0x0100, CRC(26f3e505) SHA1(3526060dbd1bf885c2e686bc9a6082387630952a))
 	ROM_LOAD( "sacst3.bin", 0x0500, 0x0100, CRC(965b3474) SHA1(6d9142e68d375fb000fd6ea48369d0801274ded6))
diff --git a/src/mame/drivers/z80dev.cpp b/src/mame/drivers/z80dev.cpp
index 2f64375d8d0..e52897c9f13 100644
--- a/src/mame/drivers/z80dev.cpp
+++ b/src/mame/drivers/z80dev.cpp
@@ -136,7 +136,7 @@ void z80dev_state::z80dev(machine_config &config)
 
 /* ROM definition */
 ROM_START( z80dev )
-	ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+	ROM_REGION( 0x0800, "maincpu", 0 )
 	ROM_LOAD( "z80dev.bin", 0x0000, 0x0800, CRC(dd5b9cd9) SHA1(97c176fcb63674f0592851b7858cb706886b5857))
 ROM_END