[AVR] Add support for avr6 controller family to gcc
Anatoly Sokolov
aesok@post.ru
Thu Mar 13 23:02:00 GMT 2008
Hi,
Here is a patch that add support for a new controller family avr6 to the AVR
ports of the GCC.
Old patch: http://gcc.gnu.org/ml/gcc-patches/2006-05/msg00534.html
2008-03-14 Bjoern Haase <bjoern.m.haase@web.de>
Anatoly Sokolov <aesok@post.ru>
* gcc/gcc/config/avr/avr.c (avr_arch_types): Add avr6 entry.
(avr_arch): Add ARCH_AVR6.
(avr_mcu_types): Add 'atmega2560' and 'atmega2561' entry.
(initial_elimination_offset): Initialize and use 'avr_pc_size'
instead of fixed value 2.
(print_operand_address): Use gs() asm specifier instead of pm().
(avr_assemble_integer): (Ditto.).
(avr_output_addr_vec_elt): (Ditto.).
(print_operand): Handle "!" code.
* gcc/gcc/config/avr/avr.h (TARGET_CPU_CPP_BUILTINS): Add
__AVR_3_BYTE_PC__, __AVR_2_BYTE_PC__ and __AVR_HAVE_JMP_CALL__.
(AVR_HAVE_EIJMP_EICALL): Define.
(AVR_3_BYTE_PC): Redefine.
(AVR_2_BYTE_PC): (Ditto.).
(PRINT_OPERAND_PUNCT_VALID_P): Add '!' code.
(LINK_SPEC): Add atmega2560 and atmega2561.
(CRT_BINUTILS_SPEC): Add atmega2560 (crtm2560.o) and atmega2561
(crtm2561.o).
* gcc/gcc/config/avr/avr.md (call_insn): Use eicall instead of icall
for 3 byte PC devices.
(call_value_insn): (Ditto.).
(*tablejump_enh): Use eijmp instead of ijmp for 3 byte PC devices.
(indirect_jump): Use only for for 2 byte PC devices.
(*tablejump): (Ditto.).
(*indirect_jump_avr6): Add insn.
(*tablejump_rjmp): Don't use for 3 byte PC devices.
* gcc/gcc/config/avr/libgcc.S (__prologue_saves__): Use eijmp
instead of ijmp for 3 byte PC devices.
(__tablejump2__): (Ditto.).
* gcc/gcc/config/avr/t-avr (MULITLIB_OPTIONS): Add avr6 architecture.
(MULITLIB_DIRNAMES): (Ditto.).
(MULTILIB_MATCHES): Add atmega2560 and atmega2561 to list.
Index: gcc/config/avr/libgcc.S
===================================================================
--- gcc/config/avr/libgcc.S (revision 133196)
+++ gcc/config/avr/libgcc.S (working copy)
@@ -595,7 +595,12 @@
out __SP_H__,r29
out __SREG__,__tmp_reg__
out __SP_L__,r28
+#if defined (__AVR_HAVE_EIJMP_EICALL__)
+ eijmp
+#else
ijmp
+#endif
+
.endfunc
#endif /* defined (L_prologue) */
@@ -675,13 +680,22 @@
lpm __tmp_reg__, Z+
lpm r31, Z
mov r30, __tmp_reg__
+
+#if defined (__AVR_HAVE_EIJMP_EICALL__)
+ eijmp
+#else
ijmp
+#endif
+
#else
lpm
adiw r30, 1
push r0
lpm
push r0
+#if defined (__AVR_HAVE_EIJMP_EICALL__)
+ push __zero_reg__
+#endif
ret
#endif
.endfunc
Index: gcc/config/avr/avr.md
===================================================================
--- gcc/config/avr/avr.md (revision 133196)
+++ gcc/config/avr/avr.md (working copy)
@@ -32,6 +32,7 @@
;; p POST_INC or PRE_DEC address as a pointer (X, Y, Z)
;; r POST_INC or PRE_DEC address as a register (r26, r28, r30)
;; ~ Output 'r' if not AVR_MEGA.
+;; ! Output 'e' if AVR_HAVE_EIJMP_EICALL.
;; UNSPEC usage:
;; 0 Length of a string, see "strlenhi".
@@ -2301,22 +2302,22 @@
"(register_operand (operands[0], HImode) || CONSTANT_P (operands[0]))"
"*{
if (which_alternative==0)
- return \"icall\";
+ return \"%!icall\";
else if (which_alternative==1)
{
if (AVR_HAVE_MOVW)
return (AS2 (movw, r30, %0) CR_TAB
- \"icall\");
+ \"%!icall\");
else
return (AS2 (mov, r30, %A0) CR_TAB
AS2 (mov, r31, %B0) CR_TAB
- \"icall\");
+ \"%!icall\");
}
else if (which_alternative==2)
return AS1(%~call,%c0);
return (AS2 (ldi,r30,lo8(%0)) CR_TAB
AS2 (ldi,r31,hi8(%0)) CR_TAB
- \"icall\");
+ \"%!icall\");
}"
[(set_attr "cc" "clobber,clobber,clobber,clobber")
(set_attr_alternative "length"
@@ -2338,22 +2339,22 @@
"(register_operand (operands[0], VOIDmode) || CONSTANT_P (operands[0]))"
"*{
if (which_alternative==0)
- return \"icall\";
+ return \"%!icall\";
else if (which_alternative==1)
{
if (AVR_HAVE_MOVW)
return (AS2 (movw, r30, %1) CR_TAB
- \"icall\");
+ \"%!icall\");
else
return (AS2 (mov, r30, %A1) CR_TAB
AS2 (mov, r31, %B1) CR_TAB
- \"icall\");
+ \"%!icall\");
}
else if (which_alternative==2)
return AS1(%~call,%c1);
return (AS2 (ldi, r30, lo8(%1)) CR_TAB
AS2 (ldi, r31, hi8(%1)) CR_TAB
- \"icall\");
+ \"%!icall\");
}"
[(set_attr "cc" "clobber,clobber,clobber,clobber")
(set_attr_alternative "length"
@@ -2376,13 +2377,20 @@
; indirect jump
(define_insn "indirect_jump"
[(set (pc) (match_operand:HI 0 "register_operand" "!z,*r"))]
- ""
+ "!AVR_HAVE_EIJMP_EICALL"
"@
ijmp
push %A0\;push %B0\;ret"
[(set_attr "length" "1,3")
(set_attr "cc" "none,none")])
+(define_insn "*indirect_jump_avr6"
+ [(set (pc) (match_operand:HI 0 "register_operand" "z"))]
+ "AVR_HAVE_EIJMP_EICALL"
+ "eijmp"
+ [(set_attr "length" "1")
+ (set_attr "cc" "none")])
+
;; table jump
;; Table made from "rjmp" instructions for <=8K devices.
@@ -2391,7 +2399,7 @@
UNSPEC_INDEX_JMP))
(use (label_ref (match_operand 1 "" "")))
(clobber (match_dup 0))]
- "!AVR_MEGA"
+ "(!AVR_HAVE_JMP_CALL) && (!AVR_HAVE_EIJMP_EICALL)"
"@
ijmp
push %A0\;push %B0\;ret"
@@ -2420,7 +2428,7 @@
lpm __tmp_reg__,Z+
lpm r31,Z
mov r30,__tmp_reg__
- ijmp"
+ %!ijmp"
[(set_attr "length" "6")
(set_attr "cc" "clobber")])
@@ -2429,7 +2437,7 @@
UNSPEC_INDEX_JMP))
(use (label_ref (match_operand 1 "" "")))
(clobber (match_dup 0))]
- "AVR_MEGA"
+ "AVR_HAVE_JMP_CALL && !AVR_HAVE_EIJMP_EICALL"
"lsl r30
rol r31
lpm
Index: gcc/config/avr/avr.c
===================================================================
--- gcc/config/avr/avr.c (revision 133196)
+++ gcc/config/avr/avr.c (working copy)
@@ -127,7 +127,8 @@
{ 0, 0, 1, 1, 0, 0, 0, 0, "__AVR_ARCH__=35" },
{ 0, 1, 0, 1, 0, 0, 0, 0, "__AVR_ARCH__=4" },
{ 0, 1, 1, 1, 0, 0, 0, 0, "__AVR_ARCH__=5" },
- { 0, 1, 1, 1, 1, 1, 0, 0, "__AVR_ARCH__=51" }
+ { 0, 1, 1, 1, 1, 1, 0, 0, "__AVR_ARCH__=51" },
+ { 0, 1, 1, 1, 1, 1, 1, 0, "__AVR_ARCH__=6" }
};
/* These names are used as the index into the avr_arch_types[] table
@@ -144,7 +145,8 @@
ARCH_AVR35,
ARCH_AVR4,
ARCH_AVR5,
- ARCH_AVR51
+ ARCH_AVR51,
+ ARCH_AVR6
};
struct mcu_type_s {
@@ -273,6 +275,10 @@
{ "at90can128", ARCH_AVR51, "__AVR_AT90CAN128__" },
{ "at90usb1286", ARCH_AVR51, "__AVR_AT90USB1286__" },
{ "at90usb1287", ARCH_AVR51, "__AVR_AT90USB1287__" },
+ /* 3-Byte PC. */
+ { "avr6", ARCH_AVR6, NULL },
+ { "atmega2560", ARCH_AVR6, "__AVR_ATmega2560__" },
+ { "atmega2561", ARCH_AVR6, "__AVR_ATmega2561__" },
/* Assembler only. */
{ "avr1", ARCH_AVR1, NULL },
{ "at90s1200", ARCH_AVR1, "__AVR_AT90S1200__" },
@@ -511,9 +517,10 @@
else
{
int offset = frame_pointer_needed ? 2 : 0;
+ int avr_pc_size = AVR_HAVE_EIJMP_EICALL ? 3 : 2;
offset += avr_regs_to_save (NULL);
- return get_frame_size () + 2 + 1 + offset;
+ return get_frame_size () + (avr_pc_size) + 1 + offset;
}
}
@@ -1119,7 +1126,7 @@
&& ((GET_CODE (addr) == SYMBOL_REF && SYMBOL_REF_FUNCTION_P (addr))
|| GET_CODE (addr) == LABEL_REF))
{
- fprintf (file, "pm(");
+ fprintf (file, "gs(");
output_addr_const (file,addr);
fprintf (file ,")");
}
@@ -1144,6 +1151,11 @@
if (!AVR_MEGA)
fputc ('r', file);
}
+ else if (code == '!')
+ {
+ if (AVR_HAVE_EIJMP_EICALL)
+ fputc ('e', file);
+ }
else if (REG_P (x))
{
if (x == zero_reg_rtx)
@@ -4468,7 +4480,7 @@
&& ((GET_CODE (x) == SYMBOL_REF && SYMBOL_REF_FUNCTION_P (x))
|| GET_CODE (x) == LABEL_REF))
{
- fputs ("\t.word\tpm(", asm_out_file);
+ fputs ("\t.word\tgs(", asm_out_file);
output_addr_const (asm_out_file, x);
fputs (")\n", asm_out_file);
return true;
@@ -5814,8 +5826,8 @@
avr_output_addr_vec_elt (FILE *stream, int value)
{
switch_to_section (progmem_section);
- if (AVR_MEGA)
- fprintf (stream, "\t.word pm(.L%d)\n", value);
+ if (AVR_HAVE_JMP_CALL)
+ fprintf (stream, "\t.word gs(.L%d)\n", value);
else
fprintf (stream, "\trjmp .L%d\n", value);
}
Index: gcc/config/avr/t-avr
===================================================================
--- gcc/config/avr/t-avr (revision 133196)
+++ gcc/config/avr/t-avr (working copy)
@@ -37,8 +37,8 @@
FPBIT = fp-bit.c
-MULTILIB_OPTIONS = mmcu=avr2/mmcu=avr25/mmcu=avr3/mmcu=avr31/mmcu=avr35/mmcu=avr4/mmcu=avr5/mmcu=avr51
-MULTILIB_DIRNAMES = avr2 avr25 avr3 avr31 avr35 avr4 avr5 avr51
+MULTILIB_OPTIONS = mmcu=avr2/mmcu=avr25/mmcu=avr3/mmcu=avr31/mmcu=avr35/mmcu=avr4/mmcu=avr5/mmcu=avr51/mmcu=avr6
+MULTILIB_DIRNAMES = avr2 avr25 avr3 avr31 avr35 avr4 avr5 avr51 avr6
# The many avr2 matches are not listed here - this is the default.
MULTILIB_MATCHES = \
@@ -123,7 +123,9 @@
mmcu?avr51=mmcu?atmega1284p \
mmcu?avr51=mmcu?at90can128 \
mmcu?avr51=mmcu?at90usb1286 \
- mmcu?avr51=mmcu?at90usb1287
+ mmcu?avr51=mmcu?at90usb1287 \
+ mmcu?avr6=mmcu?atmega2560 \
+ mmcu?avr6=mmcu?atmega2561
MULTILIB_EXCEPTIONS =
Index: gcc/config/avr/avr.h
===================================================================
--- gcc/config/avr/avr.h (revision 133196)
+++ gcc/config/avr/avr.h (working copy)
@@ -80,6 +80,15 @@
builtin_define ("__AVR_MEGA__"); \
if (avr_current_arch->have_jmp_call) \
builtin_define ("__AVR_HAVE_JMP_CALL__"); \
+ if (avr_current_arch->have_eijmp_eicall) \
+ { \
+ builtin_define ("__AVR_HAVE_JMP_CALL__"); \
+ builtin_define ("__AVR_3_BYTE_PC__"); \
+ } \
+ else \
+ { \
+ builtin_define ("__AVR_2_BYTE_PC__"); \
+ } \
if (TARGET_NO_INTERRUPTS) \
builtin_define ("__NO_INTERRUPTS__"); \
} \
@@ -96,13 +105,15 @@
#endif
#define AVR_MEGA (avr_mega_p && !TARGET_SHORT_CALLS)
+#define AVR_HAVE_JMP_CALL (avr_current_arch->have_jmp_call && !TARGET_SHORT_CALLS)
#define AVR_HAVE_MUL (avr_have_mul_p)
#define AVR_HAVE_MOVW (avr_have_movw_lpmx_p)
#define AVR_HAVE_LPMX (avr_have_movw_lpmx_p)
#define AVR_HAVE_RAMPZ (avr_current_arch->have_elpm)
+#define AVR_HAVE_EIJMP_EICALL (avr_current_arch->have_eijmp_eicall)
-#define AVR_2_BYTE_PC 1
-#define AVR_3_BYTE_PC 0
+#define AVR_2_BYTE_PC (!AVR_HAVE_EIJMP_EICALL)
+#define AVR_3_BYTE_PC (AVR_HAVE_EIJMP_EICALL)
#define TARGET_VERSION fprintf (stderr, " (GNU assembler syntax)");
@@ -671,7 +682,7 @@
#define PRINT_OPERAND(STREAM, X, CODE) print_operand (STREAM, X, CODE)
-#define PRINT_OPERAND_PUNCT_VALID_P(CODE) ((CODE) == '~')
+#define PRINT_OPERAND_PUNCT_VALID_P(CODE) ((CODE) == '~' || (CODE) == '!')
#define PRINT_OPERAND_ADDRESS(STREAM, X) print_operand_address(STREAM, X)
@@ -828,6 +839,7 @@
mmcu=at90usb64*|\
mmcu=at90usb128*|\
mmcu=at94k: -m avr5}\
+%{mmcu=atmega256*:-m avr6}\
%{mmcu=atmega324*|\
mmcu=atmega325*|\
mmcu=atmega328p|\
@@ -856,7 +868,8 @@
mmcu=at90usb*: -Tdata 0x800100}\
%{mmcu=atmega640|\
mmcu=atmega1280|\
- mmcu=atmega1281: -Tdata 0x800200} "
+ mmcu=atmega1281|\
+ mmcu=atmega256*: -Tdata 0x800200} "
#define LIB_SPEC \
"%{!mmcu=at90s1*:%{!mmcu=attiny11:%{!mmcu=attiny12:%{!mmcu=attiny15:%{!mmcu=attiny28: -lc }}}}}"
@@ -968,6 +981,8 @@
%{mmcu=atmega1280:crtm1280.o%s} \
%{mmcu=atmega1281:crtm1281.o%s} \
%{mmcu=atmega1284p:crtm1284p.o%s} \
+%{mmcu=atmega2560:crtm2560.o%s} \
+%{mmcu=atmega2561:crtm2561.o%s} \
%{mmcu=at90can128:crtcan128.o%s} \
%{mmcu=at90usb1286:crtusb1286.o%s} \
%{mmcu=at90usb1287:crtusb1287.o%s}"
Anatoly.
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