diff --git a/src/emu/cpu/powerpc/ppc.h b/src/emu/cpu/powerpc/ppc.h
index ddf1deede92..7140b9c6b42 100644
--- a/src/emu/cpu/powerpc/ppc.h
+++ b/src/emu/cpu/powerpc/ppc.h
@@ -155,6 +155,7 @@ struct _powerpc_config
 	write32_device_func	dcr_write_func;
 };
 
+typedef void (*ppc_dcstore_handler)(device_t *device, UINT32 address);
 
 
 /***************************************************************************
@@ -168,6 +169,8 @@ void ppcdrc_add_hotspot(device_t *device, offs_t pc, UINT32 opcode, UINT32 cycle
 void ppc4xx_spu_set_tx_handler(device_t *device, ppc4xx_spu_tx_handler handler);
 void ppc4xx_spu_receive_byte(device_t *device, UINT8 byteval);
 
+void ppc_set_dcstore_callback(device_t *device, ppc_dcstore_handler handler);
+
 
 DECLARE_LEGACY_CPU_DEVICE(PPC403GA, ppc403ga);
 DECLARE_LEGACY_CPU_DEVICE(PPC403GCX, ppc403gcx);
diff --git a/src/emu/cpu/powerpc/ppccom.c b/src/emu/cpu/powerpc/ppccom.c
index fdc49bc567e..e37b5b653e8 100644
--- a/src/emu/cpu/powerpc/ppccom.c
+++ b/src/emu/cpu/powerpc/ppccom.c
@@ -454,6 +454,19 @@ offs_t ppccom_dasm(powerpc_state *ppc, char *buffer, offs_t pc, const UINT8 *opr
 }
 
 
+/*-------------------------------------------------
+	ppccom_dcstore_callback - call the dcstore
+	callback if installed
+-------------------------------------------------*/
+
+void ppccom_dcstore_callback(powerpc_state *ppc)
+{
+	if (ppc->dcstore_handler != NULL)
+	{
+		ppc->dcstore_handler(ppc->device, ppc->param0);
+	}
+}
+
 
 /***************************************************************************
     TLB HANDLING
@@ -1607,6 +1620,16 @@ static TIMER_CALLBACK( decrementer_int_callback )
 	ppc->decrementer_int_timer->adjust(ppc->device->cycles_to_attotime(cycles_until_next));
 }
 
+/*-------------------------------------------------
+	ppc_set_dcstore_callback - installs a callback
+	for detecting datacache stores with dcbst
+-------------------------------------------------*/
+
+void ppc_set_dcstore_callback(device_t *device, ppc_dcstore_handler handler)
+{
+	powerpc_state *ppc = *(powerpc_state **)downcast<legacy_cpu_device *>(device)->token();
+	ppc->dcstore_handler = handler;
+}
 
 
 /***************************************************************************
diff --git a/src/emu/cpu/powerpc/ppccom.h b/src/emu/cpu/powerpc/ppccom.h
index 3e70d536eab..0f18daa7247 100644
--- a/src/emu/cpu/powerpc/ppccom.h
+++ b/src/emu/cpu/powerpc/ppccom.h
@@ -568,6 +568,8 @@ struct _powerpc_state
 
 	read32_device_func	dcr_read_func;
 	write32_device_func	dcr_write_func;
+
+	ppc_dcstore_handler dcstore_handler;
 };
 
 
@@ -601,6 +603,8 @@ void ppccom_execute_mtdcr(powerpc_state *ppc);
 
 void ppccom_update_fprf(powerpc_state *ppc);
 
+void ppccom_dcstore_callback(powerpc_state *ppc);
+
 void ppc4xx_set_info(powerpc_state *ppc, UINT32 state, cpuinfo *info);
 void ppc4xx_get_info(powerpc_state *ppc, UINT32 state, cpuinfo *info);
 
diff --git a/src/emu/cpu/powerpc/ppcdrc.c b/src/emu/cpu/powerpc/ppcdrc.c
index 9fc02ef1cb8..c3414f1b8a7 100644
--- a/src/emu/cpu/powerpc/ppcdrc.c
+++ b/src/emu/cpu/powerpc/ppcdrc.c
@@ -3617,6 +3617,11 @@ static int generate_instruction_1f(powerpc_state *ppc, drcuml_block *block, comp
 			return FALSE;
 
 		case 0x036:	/* DCBST */
+			UML_ADD(block, I0, R32Z(G_RA(op)), R32(G_RB(op)));							// add     i0,ra,rb
+			UML_MOV(block, mem(&ppc->param0), I0);										// mov     [param0],i0
+			UML_CALLC(block, (c_function)ppccom_dcstore_callback, ppc);
+			return TRUE;
+
 		case 0x056:	/* DCBF */
 		case 0x0f6:	/* DCBTST */
 		case 0x116:	/* DCBT */