sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 484 insertions, 0 deletions

diff --git a/device/lib/_setjmp.c b/device/lib/_setjmp.c
new file mode 100644
index 0000000..9a0747a
--- /dev/null
+++ b/device/lib/_setjmp.c
@@ -0,0 +1,484 @@
+/*-------------------------------------------------------------------------
+   setjmp.c - source file for ANSI routines setjmp & longjmp
+
+   Copyright (C) 1999, Sandeep Dutta . sandeep.dutta@usa.net
+
+   This library is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this library; see the file COPYING. If not, write to the
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA.
+
+   As a special exception, if you link this library with other files,
+   some of which are compiled with SDCC, to produce an executable,
+   this library does not by itself cause the resulting executable to
+   be covered by the GNU General Public License. This exception does
+   not however invalidate any other reasons why the executable file
+   might be covered by the GNU General Public License.
+-------------------------------------------------------------------------*/
+
+#include <sdcc-lib.h>
+#define __SDCC_HIDE_LONGJMP
+#include <setjmp.h>
+
+#if defined(__SDCC_ds390)
+
+#include <ds80c390.h>
+
+int __setjmp (jmp_buf buf)
+{
+    unsigned char sp, esp;
+    unsigned long lsp;
+
+    /* registers would have been saved on the
+       stack anyway so we need to save SP
+       and the return address */
+    __critical {
+        sp = SP;
+        esp = ESP;
+    }
+    lsp = sp;
+    lsp |= (unsigned int)(esp << 8);
+    lsp |= 0x400000;
+    *buf++ = lsp;
+    *buf++ = lsp >> 8;
+    *buf++ = *((unsigned char __xdata *) lsp - 0);
+    *buf++ = *((unsigned char __xdata *) lsp - 1);
+    *buf++ = *((unsigned char __xdata *) lsp - 2);
+    return 0;
+}
+
+int longjmp (jmp_buf buf, int rv)
+{
+    unsigned long lsp;
+
+    lsp = *buf++;
+    lsp |= (unsigned int)(*buf++ << 8);
+    lsp |= 0x400000;
+    *((unsigned char __xdata *) lsp - 0) = *buf++;
+    *((unsigned char __xdata *) lsp - 1) = *buf++;
+    *((unsigned char __xdata *) lsp - 2) = *buf++;
+    __critical {
+        SP = lsp;
+        ESP = lsp >> 8;
+    }
+    return rv ? rv : 1;
+}
+
+#elif defined(__SDCC_STACK_AUTO) && defined(__SDCC_USE_XSTACK)
+
+static void dummy (void) __naked
+{
+	__asm
+
+;------------------------------------------------------------
+;Allocation info for local variables in function 'setjmp'
+;------------------------------------------------------------
+;buf                       Allocated to registers dptr b
+;------------------------------------------------------------
+;../../device/lib/_setjmp.c:180:int setjmp (jmp_buf buf)
+;	-----------------------------------------
+;	 function setjmp
+;	-----------------------------------------
+	.globl ___setjmp
+___setjmp:
+	ar2 = 0x02
+	ar3 = 0x03
+	ar4 = 0x04
+	ar5 = 0x05
+	ar6 = 0x06
+	ar7 = 0x07
+	ar0 = 0x00
+	ar1 = 0x01
+;../../device/lib/_setjmp.c:183:*buf++ = bpx;
+;     genPointerSet
+;     genGenPointerSet
+	mov	a,_bpx
+	lcall	__gptrput
+	inc	dptr
+;../../device/lib/_setjmp.c:184:*buf++ = spx;
+;     genPointerSet
+;     genGenPointerSet
+	mov	a,_spx
+	lcall	__gptrput
+	inc	dptr
+;../../device/lib/_setjmp.c:185:*buf++ = bp;
+;     genPointerSet
+;     genGenPointerSet
+	mov	a,_bp
+	lcall	__gptrput
+	inc	dptr
+;../../device/lib/_setjmp.c:186:*buf++ = SP;
+;     genPointerSet
+;     genGenPointerSet
+	mov	a,sp
+	lcall	__gptrput
+	inc	dptr
+;../../device/lib/_setjmp.c:187:*buf++ = *((unsigned char __data *) SP  );
+;     genCast
+;     genPointerGet
+;     genNearPointerGet
+;     genPointerSet
+;     genGenPointerSet
+	mov	r0,sp
+	mov	a,@r0
+	lcall	__gptrput
+	inc	dptr
+;../../device/lib/_setjmp.c:188:*buf   = *((unsigned char __data *)SP - 1);
+;     genCast
+;     genMinus
+;     genMinusDec
+;	peephole 177.g	optimized mov sequence
+	dec	r0
+;     genPointerGet
+;     genNearPointerGet
+	mov	a,@r0
+;     genPointerSet
+;     genGenPointerSet
+	lcall	__gptrput
+#ifdef __SDCC_MODEL_HUGE
+	inc	dptr
+;../../device/lib/_setjmp.c:189:*buf   = *((unsigned char __data *)SP - 2);
+;     genCast
+;     genMinus
+;     genMinusDec
+;	peephole 177.g	optimized mov sequence
+	dec	r0
+;     genPointerGet
+;     genNearPointerGet
+	mov	a,@r0
+;     genPointerSet
+;     genGenPointerSet
+	lcall	__gptrput
+#endif
+;../../device/lib/_setjmp.c:190:return 0;
+;     genRet
+	mov	dptr,#0x0000
+	_RETURN
+
+;------------------------------------------------------------
+;Allocation info for local variables in function 'longjmp'
+;------------------------------------------------------------
+;rv                        Allocated to stack - offset -2
+;buf                       Allocated to registers dptr b
+;lsp                       Allocated to registers r5
+;------------------------------------------------------------
+;../../device/lib/_setjmp.c:192:int longjmp (jmp_buf buf, int rv)
+;	-----------------------------------------
+;	 function longjmp
+;	-----------------------------------------
+	.globl _longjmp
+_longjmp:
+;     genReceive
+	mov	r0,_spx
+	dec	r0
+	movx	a,@r0
+	mov	r2,a
+	dec	r0
+	movx	a,@r0
+	mov	r3,a
+;../../device/lib/_setjmp.c:193:bpx = *buf++;
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+	mov	_bpx,a
+	inc	dptr
+;../../device/lib/_setjmp.c:194:spx = *buf++;
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+	mov	_spx,a
+	inc	dptr
+;../../device/lib/_setjmp.c:195:bp = *buf++;
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+	mov	_bp,a
+	inc	dptr
+;../../device/lib/_setjmp.c:196:lsp = *buf++;
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+	inc	dptr
+;     genAssign
+	mov	r5,a
+;../../device/lib/_setjmp.c:197:*((unsigned char __data *) lsp) = *buf++;
+;     genCast
+	mov	r0,a
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+	inc	dptr
+;     genPointerSet
+;     genNearPointerSet
+	mov	@r0,a
+;../../device/lib/_setjmp.c:198:*((unsigned char __data *) lsp - 1) = *buf;
+;     genMinus
+;     genMinusDec
+	dec	r0
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+;     genPointerSet
+;     genNearPointerSet
+	mov	@r0,a
+#ifdef __SDCC_MODEL_HUGE
+	inc	dptr
+;../../device/lib/_setjmp.c:199:*((unsigned char __data *) lsp - 2) = *buf;
+;     genMinus
+;     genMinusDec
+	dec	r0
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+;     genPointerSet
+;     genNearPointerSet
+	mov	@r0,a
+#endif
+;../../device/lib/_setjmp.c:200:SP = lsp;
+;     genAssign
+	mov	sp,r5
+;../../device/lib/_setjmp.c:201:return rv ? rv : 1;
+;     genAssign
+	mov	dph,r2
+	mov	dpl,r3
+	mov	a,r2
+	orl	a,r3
+	jnz	00001$
+	inc	dptr
+;     genRet
+00001$:
+	_RETURN
+
+	__endasm;
+}
+
+#elif defined(__SDCC_STACK_AUTO)
+
+static void dummy (void) __naked
+{
+	__asm
+
+;------------------------------------------------------------
+;Allocation info for local variables in function 'setjmp'
+;------------------------------------------------------------
+;buf                       Allocated to registers dptr b
+;------------------------------------------------------------
+;../../device/lib/_setjmp.c:122:int setjmp (unsigned char *buf)
+;	-----------------------------------------
+;	 function setjmp
+;	-----------------------------------------
+	.globl ___setjmp
+___setjmp:
+	ar2 = 0x02
+	ar3 = 0x03
+	ar4 = 0x04
+	ar5 = 0x05
+	ar6 = 0x06
+	ar7 = 0x07
+	ar0 = 0x00
+	ar1 = 0x01
+;     genReceive
+;../../device/lib/_setjmp.c:125:*buf   = BP;
+;     genPointerSet
+;     genGenPointerSet
+	mov	a,_bp
+	lcall	__gptrput
+	inc	dptr
+;../../device/lib/_setjmp.c:126:*buf   = SP;
+;     genPointerSet
+;     genGenPointerSet
+	mov	a,sp
+	lcall	__gptrput
+	inc	dptr
+;../../device/lib/_setjmp.c:127:*buf++ = *((unsigned char __data *) SP  );
+;     genCast
+	mov	r0,sp
+;     genPointerGet
+;     genNearPointerGet
+	mov	a,@r0
+;     genPointerSet
+;     genGenPointerSet
+	lcall	__gptrput
+	inc	dptr
+;../../device/lib/_setjmp.c:128:*buf++ = *((unsigned char __data *)SP - 1);
+;     genCast
+;     genMinus
+;     genMinusDec
+	dec	r0
+;     genPointerGet
+;     genNearPointerGet
+	mov	a,@r0
+;     genPointerSet
+;     genGenPointerSet
+	lcall	__gptrput
+#ifdef __SDCC_MODEL_HUGE
+	inc	dptr
+;../../device/lib/_setjmp.c:129:*buf++ = *((unsigned char __data *)SP - 2);
+;     genCast
+;     genMinus
+;     genMinusDec
+	dec	r0
+;     genPointerGet
+;     genNearPointerGet
+	mov	a,@r0
+;     genPointerSet
+;     genGenPointerSet
+	lcall	__gptrput
+#endif
+;../../device/lib/_setjmp.c:130:return 0;
+;     genRet
+	mov	dptr,#0x0000
+	_RETURN
+
+;------------------------------------------------------------
+;Allocation info for local variables in function 'longjmp'
+;------------------------------------------------------------
+;rv                        Allocated to stack - offset -3
+;buf                       Allocated to registers dptr b
+;lsp                       Allocated to registers r5
+;------------------------------------------------------------
+;../../device/lib/_setjmp.c:28:int longjmp (jmp_buf buf, int rv)
+;	-----------------------------------------
+;	 function longjmp
+;	-----------------------------------------
+	.globl _longjmp
+_longjmp:
+	ar2 = 0x02
+	ar3 = 0x03
+	ar4 = 0x04
+	ar5 = 0x05
+	ar6 = 0x06
+	ar7 = 0x07
+	ar0 = 0x00
+	ar1 = 0x01
+;     genReceive
+	mov	r0,sp
+	dec	r0
+	dec	r0
+#ifdef __SDCC_MODEL_HUGE
+	dec	r0
+#endif
+	mov	ar2,@r0
+	dec	r0
+	mov	ar3,@r0
+;../../device/lib/_setjmp.c:30:bp = *buf++;
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+	inc	dptr
+;     genAssign
+	mov	_bp,a
+;../../device/lib/_setjmp.c:31:lsp = *buf++;
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+	inc	dptr
+;     genAssign
+	mov	r5,a
+;../../device/lib/_setjmp.c:32:*((unsigned char __data *) lsp) = *buf++;
+;     genCast
+	mov	r0,a
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+	inc	dptr
+;     genPointerSet
+;     genNearPointerSet
+	mov	@r0,a
+;../../device/lib/_setjmp.c:33:*((unsigned char __data *) lsp - 1) = *buf;
+;     genCast
+;     genMinus
+;     genMinusDec
+	dec	r0
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+;     genPointerSet
+;     genNearPointerSet
+	mov	@r0,a
+#ifdef __SDCC_MODEL_HUGE
+	inc	dptr
+;../../device/lib/_setjmp.c:34:*((unsigned char __data *) lsp - 2) = *buf;
+;     genCast
+;     genMinus
+;     genMinusDec
+	dec	r0
+;     genPointerGet
+;     genGenPointerGet
+	lcall	__gptrget
+;     genPointerSet
+;     genNearPointerSet
+	mov	@r0,a
+#endif
+;../../device/lib/_setjmp.c:35:SP = lsp;
+;     genAssign
+	mov	sp,r5
+;../../device/lib/_setjmp.c:36:return rv ? rv : 1;
+;     genAssign
+	mov	dph,r2
+	mov	dpl,r3
+	mov	a,r2
+	orl	a,r3
+	jnz	00001$
+	inc	dptr
+;     genRet
+00001$:
+	_RETURN
+
+	__endasm;
+}
+
+#else
+
+#include <8051.h>
+
+extern unsigned char __data spx;
+extern unsigned char __data bpx;
+
+int __setjmp (jmp_buf buf)
+{
+    /* registers would have been saved on the
+       stack anyway so we need to save SP
+       and the return address */
+#ifdef __SDCC_USE_XSTACK
+    *buf++ = spx;
+    *buf++ = bpx;
+#endif
+    *buf++ = SP;
+    *buf++ = *((unsigned char __data *) SP - 0);
+    *buf++ = *((unsigned char __data *) SP - 1);
+#ifdef __SDCC_MODEL_HUGE
+    *buf++ = *((unsigned char __data *) SP - 2);
+#endif
+    return 0;
+}
+
+int longjmp (jmp_buf buf, int rv)
+{
+    unsigned char lsp;
+
+#ifdef __SDCC_USE_XSTACK
+    spx = *buf++;
+    bpx = *buf++;
+#endif
+    lsp = *buf++;
+    *((unsigned char __data *) lsp - 0) = *buf++;
+    *((unsigned char __data *) lsp - 1) = *buf++;
+#ifdef __SDCC_MODEL_HUGE
+    *((unsigned char __data *) lsp - 2) = *buf++;
+#endif
+    SP = lsp;
+    return rv ? rv : 1;
+}
+
+#endif