1 files changed, 136 insertions, 0 deletions
diff --git a/newlib/libc/machine/h8500/psi.S b/newlib/libc/machine/h8500/psi.S
new file mode 100644
index 0000000..47c8183
--- /dev/null
+++ b/newlib/libc/machine/h8500/psi.S
@@ -0,0 +1,136 @@
+/* convert psi to si inplace
+
+Note that `fp' below isn't a segment register.
+It's r6, the frame pointer.  */
+
+#if __CODE__==32
+#define RET prts
+#else
+#define RET rts
+#endif
+
+#define EXTPSISI_SN(r_msw,r_lsw,sp)		; \
+	.global	__extpsisi##r_msw		; \
+__extpsisi##r_msw:				; \
+	mov	r_msw,r_lsw			; \
+	stc	sp,r_msw			; \
+	RET
+
+	EXTPSISI_SN(r2,r3,dp)
+	EXTPSISI_SN(r4,r5,ep)
+
+
+#define ADDPSI_AR_RN(sr,an,r_msw,r_lsw)	\
+	.global	__addpsi##an##r_msw ;	\
+__addpsi##an##r_msw:		 ;	\
+	stc	sr,@-sp		 ;	\
+	add	an,r_lsw		 ;	\
+	addx	@sp+,r_msw		 ;	\
+	RET
+
+	ADDPSI_AR_RN(dp,r2,r0,r1)
+	ADDPSI_AR_RN(dp,r2,r3,r4)
+	ADDPSI_AR_RN(ep,r4,r0,r1)
+	ADDPSI_AR_RN(ep,r4,r1,r2)
+	ADDPSI_AR_RN(ep,r4,r3,r4)
+	ADDPSI_AR_RN(ep,r4,r5,fp)
+
+	ADDPSI_AR_RN(tp,fp,r0,r1)
+
+	
+#define ADDPSI_RN_AR(r_msw,r_lsw,sr,an,t_msw,t_lsw)	\
+	.global	__addpsi##r_msw##an		; \
+__addpsi##r_msw##an:				; \
+	mov.w	t_msw,@-sp			; \
+	mov.w	t_lsw,@-sp			; \
+	stc	sr,t_msw			; \
+	mov	an,t_lsw			; \
+	add	r_lsw,t_lsw			; \
+	addx	r_msw,t_msw			; \
+	ldc	t_msw,sr			; \
+	mov.w	t_lsw,an			; \
+	mov.w	@sp+,t_lsw			; \
+	mov.w	@sp+,t_msw			; \
+	RET	
+
+	ADDPSI_RN_AR(r0,r1,dp,r2,r4,r5)
+	ADDPSI_RN_AR(r0,r1,ep,r4,r2,r3)
+
+
+
+#define EXTPSIHI_RN_RN(rm,r_msw,r_lsw)	; \
+	.global	__extpsihi##rm##r_msw 	; \
+__extpsihi##rm##r_msw:		   	; \
+	mov	rm,r_lsw	   	; \
+	clr.w	r_msw		   	; \
+	RET
+
+	EXTPSIHI_RN_RN(r3,r0,r1)
+	EXTPSIHI_RN_RN(r4,r0,r1)
+	EXTPSIHI_RN_RN(r5,r0,r1)
+	EXTPSIHI_RN_RN(r2,r0,r1)
+
+
+
+/* ifdefed out, because gcc doesn't like the # character in the above
+   macro.  The macro expands into an assembly languange comment anyways,
+   so it serves no useful purpose.  */
+#if 0
+#define EXTPSIHI_RN_SN(rm,r_msw,r_lsw)	; \
+	.global	__extpsihi##rm##r_lsw 	; \
+__extpsihi##rm##r_lsw:		   	; \
+	mov	rm,r_lsw	   	; \
+	ldc	\#0,r_msw	   	; \
+	RET
+
+	EXTPSIHI_RN_SN(r0,dp,r2)
+	EXTPSIHI_RN_SN(r0,ep,r4)
+	EXTPSIHI_RN_SN(r1,dp,r2)
+	EXTPSIHI_RN_SN(r1,ep,r4)
+	EXTPSIHI_RN_SN(r3,dp,r2)
+	EXTPSIHI_RN_SN(r3,ep,r4)
+	EXTPSIHI_RN_SN(r5,dp,r2)
+	EXTPSIHI_RN_SN(r5,ep,r4)
+	EXTPSIHI_RN_SN(r2,ep,r4)
+#endif
+
+
+#define EXTPSISI_RN(r_msw,r_lsw)		; \
+	.global	__extpsisi##r_msw	 	; \
+__extpsisi##r_msw:		   		; \
+	RET
+
+	EXTPSISI_RN(r0,r1)
+
+
+
+#define ADDPSI_SA_SB(sa,ra,sb,rb)	; \
+	.global	__addpsi##ra##rb	; \
+__addpsi##ra##rb:			; \
+	mov.w	r0,@-sp			; \
+	mov.w	r1,@-sp			; \
+	stc	sa,r0			; \
+	stc	sb,r1			; \
+	add.w	ra,rb			; \
+	addx	r0,r1			; \
+	ldc	r1,sb			; \
+	mov.w	@sp+,r1			; \
+	mov.w	@sp+,r0			; \
+	RET		
+
+
+	ADDPSI_SA_SB(dp,r2,ep,r4)
+	ADDPSI_SA_SB(ep,r4,dp,r2)
+	ADDPSI_SA_SB(tp,fp,dp,r2)
+	ADDPSI_SA_SB(tp,fp,ep,r4)
+
+	ADDPSI_SA_SB(dp,r2,dp,r2)
+
+
+
+	.global	__addpsir0r0
+__addpsir0r0:
+	add.w	r1,r1
+	addx	r0,r0
+	RET
+