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Fix gas 68HC12 indexed addressing code generation

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This commit is contained in:
Stephane Carrez 2001-01-11 20:19:17 +00:00
parent 68a581b811
commit 8805103910
5 changed files with 112 additions and 37 deletions
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10
gas/ChangeLog
View File

@ -1,3 +1,13 @@
2001-01-11 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/tc-m68hc11.c (md_estimate_size_before_relax): Fix
STATE_INDEXED_OFFSET when the symbol is undefined (16-bit offset).
(build_indexed_byte): Don't relax indexed byte, use 16-bit offset
and fix_new_exp() instead.
(md_convert_frag): For indexed post byte use the symbol value
rather than the displacement.
(md_relax_table): Fix indexed offset relax.
2001-01-11 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/tc-m68hc11.c (md_estimate_size_before_relax):Don't

70
gas/config/tc-m68hc11.c
View File

@ -85,7 +85,7 @@ relax_typeS md_relax_table[] =
/* Relax for indexed offset: 5-bits, 9-bits, 16-bits. */
{(15), (-16), 0, ENCODE_RELAX (STATE_INDEXED_OFFSET, STATE_BITS9)},
{(255), (-256), 1, ENCODE_RELAX (STATE_INDEXED_OFFSET, STATE_BITS16)},
{0, 0, 1, 0},
{0, 0, 2, 0},
{1, 1, 0, 0},
/* Relax for dbeq/ibeq/tbeq r,<L>:
@ -1754,15 +1754,26 @@ build_indexed_byte (op, format, move_insn)
return 3;
}
}
f = frag_more (1);
number_to_chars_bigendian (f, byte, 1);
#if 0
fix_new_exp (frag_now, f - frag_now->fr_literal, 2,
&op->exp, false, BFD_RELOC_16);
#endif
frag_var (rs_machine_dependent, 2, 2,
ENCODE_RELAX (STATE_INDEXED_OFFSET, STATE_UNDF),
op->exp.X_add_symbol, val, f);
if (op->reg1 != REG_PC)
{
byte = (byte << 3) | 0xe2;
f = frag_more (1);
number_to_chars_bigendian (f, byte, 1);
f = frag_more (2);
fix_new_exp (frag_now, f - frag_now->fr_literal, 2,
&op->exp, false, BFD_RELOC_16);
number_to_chars_bigendian (f, 0, 2);
}
else
{
f = frag_more (1);
number_to_chars_bigendian (f, byte, 1);
frag_var (rs_machine_dependent, 2, 2,
ENCODE_RELAX (STATE_INDEXED_OFFSET, STATE_UNDF),
op->exp.X_add_symbol,
op->exp.X_add_number, f);
}
return 3;
}
@ -2425,6 +2436,7 @@ md_convert_frag (abfd, sec, fragP)
fragS *fragP;
{
fixS *fixp;
long value;
long disp;
char *buffer_address = fragP->fr_literal;
@ -2434,8 +2446,8 @@ md_convert_frag (abfd, sec, fragP)
buffer_address += fragP->fr_fix;
/* The displacement of the address, from current location. */
disp = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0;
disp = (disp + fragP->fr_offset) - object_address;
value = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0;
disp = (value + fragP->fr_offset) - object_address;
disp += symbol_get_frag (fragP->fr_symbol)->fr_address;
switch (fragP->fr_subtype)
@ -2485,24 +2497,37 @@ md_convert_frag (abfd, sec, fragP)
break;
case ENCODE_RELAX (STATE_INDEXED_OFFSET, STATE_BITS5):
fragP->fr_opcode[0] = fragP->fr_opcode[0] << 5;
fragP->fr_opcode[0] |= disp & 0x1f;
fragP->fr_opcode[0] = fragP->fr_opcode[0] << 6;
if ((fragP->fr_opcode[0] & 0x0ff) == 0x0c0)
fragP->fr_opcode[0] |= disp & 0x1f;
else
fragP->fr_opcode[0] |= value & 0x1f;
break;
case ENCODE_RELAX (STATE_INDEXED_OFFSET, STATE_BITS9):
fragP->fr_opcode[0] = (fragP->fr_opcode[0] << 3);
fragP->fr_opcode[0] |= 0xE0;
fix_new (fragP, fragP->fr_fix + 1, 1,
fix_new (fragP, fragP->fr_fix, 1,
fragP->fr_symbol, fragP->fr_offset, 0, BFD_RELOC_8);
fragP->fr_fix += 1;
break;
case ENCODE_RELAX (STATE_INDEXED_OFFSET, STATE_BITS16):
fragP->fr_opcode[0] = (fragP->fr_opcode[0] << 3);
fragP->fr_opcode[0] |= 0xE2;
fix_new (fragP, fragP->fr_fix, 2,
fragP->fr_symbol, fragP->fr_offset, 0, BFD_RELOC_16);
fragP->fr_fix += 1;
fragP->fr_opcode[0] |= 0xe2;
if ((fragP->fr_opcode[0] & 0x0ff) == 0x0fa)
{
fixp = fix_new (fragP, fragP->fr_fix, 2,
fragP->fr_symbol, fragP->fr_offset,
1, BFD_RELOC_16_PCREL);
fixp->fx_pcrel_adjust = 2;
}
else
{
fix_new (fragP, fragP->fr_fix, 2,
fragP->fr_symbol, fragP->fr_offset, 0, BFD_RELOC_16);
}
fragP->fr_fix += 2;
break;
case ENCODE_RELAX (STATE_XBCC_BRANCH, STATE_BYTE):
@ -2621,13 +2646,12 @@ md_estimate_size_before_relax (fragP, segment)
else
{
/* Switch the indexed operation to 16-bit mode. */
if ((fragP->fr_opcode[1] & 0x21) == 0x20)
fragP->fr_opcode[1] = (fragP->fr_opcode[1] >> 3) | 0xc0 | 0x02;
fragP->fr_opcode[0] = fragP->fr_opcode[0] << 3;
fragP->fr_opcode[0] |= 0xe2;
fragP->fr_fix++;
fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
fragP->fr_offset, 0, BFD_RELOC_16);
fragP->fr_fix += 2;
fragP->fr_fix++;
frag_wane (fragP);
}
break;

5
gas/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2001-01-11 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* gas/m68hc11/opers12.s: Add more tests for index post byte.
* gas/m68hc11/opers12.d: Likewise.
2001-01-11 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* gas/m68hc11/all.exp: Add new tests for dwarf2.

19
gas/testsuite/gas/m68hc11/opers12.d
View File

@ -25,7 +25,7 @@ Disassembly of section .text:
0+031 <L1\+0x28> ldaa \[257,Y\]
0+035 <L1\+0x2c> ldab \[32767,SP\]
0+039 <L1\+0x30> ldd \[32768,PC\]
0+03d <L1\+0x34> ldd 0,PC
0+03d <L1\+0x34> ldd 9,PC
0+040 <L1\+0x37> std A,X
0+042 <L1\+0x39> ldx B,X
0+044 <L1\+0x3b> stx D,Y
@ -68,9 +68,9 @@ Disassembly of section .text:
0+0b8 <L1\+0xaf> trap #128
0+0ba <L1\+0xb1> trap #255
0+0bc <L2> movw 1,X, 2,X
0+0c0 <L2\+0x4> movw 0+0ffff <L2\+0xff43>, 0000ffff <L2\+0xff43>
0+0c6 <L2\+0xa> movw 0+0ffff <L2\+0xff43>, 1,X
0+0cb <L2\+0xf> movw #0+0ffff <L2\+0xff43>, 1,X
0+0c0 <L2\+0x4> movw 0+0ffff <bb\+0xd7ff>, 0000ffff <bb\+0xd7ff>
0+0c6 <L2\+0xa> movw 0+0ffff <bb\+0xd7ff>, 1,X
0+0cb <L2\+0xf> movw #0+0ffff <bb\+0xd7ff>, 1,X
0+0d0 <L2\+0x14> movw 0+03 <start\+0x3>, 0+08 <start\+0x8>
0+0d6 <L2\+0x1a> movw #0+03 <start\+0x3>, 0+03 <start\+0x3>
0+0dc <L2\+0x20> movw #0+03 <start\+0x3>, 1,X
@ -78,4 +78,13 @@ Disassembly of section .text:
0+0e6 <L2\+0x2a> movw 0+03 <start\+0x3>, 2,X
0+0eb <L2\+0x2f> movw 0+04 <start\+0x4>, -2,X
0+0f0 <L2\+0x34> rts
0+0f1 <post_indexed_pb> leas 0,X
0+0f5 <t2> leax 4,Y
0+0f7 <t2\+0x2> leax 100,X
0+0fb <t2\+0x6> leas 110,SP
0+0ff <t2\+0xa> leay 10,X
0+103 <t2\+0xe> leas 10240,Y
0+107 <t2\+0x12> leas 255,PC
0+10b <t2\+0x16> leas 0,PC
0+10f <t2\+0x1a> leas 255,PC
0+113 <t2\+0x1e> leas 0,PC

45
gas/testsuite/gas/m68hc11/opers12.s
View File

@ -6,11 +6,11 @@
globl start
start:
anda [12,x]
anda [12,x] ; Indexed indirect
ldaa #10
ldx L1
L1: ldy ,x
addd 1,y
addd 1,y ; Offset from register
subd -1,y
eora 15,y
eora -16,y
@ -22,33 +22,36 @@ L1: ldy ,x
orab -256,x
anda 256,x
andb -257,x
anda [12,x]
anda [12,x] ; Indexed indirect (16-bit offset)
ldaa [257,y]
ldab [32767,sp]
ldd [32768,pc]
ldd L1,pc
std a,x
std a,x ; Two-reg index
ldx b,x
stx d,y
addd 1,+x
addd 1,+x ; Pre-Auto inc
addd 2,+x
addd 8,+x
addd 1,sp+
addd 1,sp+ ; Post-Auto inc
addd 2,sp+
addd 8,sp+
subd 1,-y
subd 1,-y ; Pre-Auto dec
subd 2,-y
subd 8,-y
addd 1,y-
addd 1,y- ; Post-Auto dec
addd 2,y-
addd 8,y-
std [d,x]
std [d,x] ; Indexed indirect with two reg index
std [d,y]
std [d,sp]
std [d,pc]
beq L1
lbeq start
lbcc L2
;;
;; Move insn with various operands
;;
movb start, 1,x
movw 1,x, start
movb start, 1,+x
@ -80,3 +83,27 @@ L2:
movw 3,+2,x
movw 4,-2,x
rts
;;
;; Post-index byte with relocation
;;
post_indexed_pb:
t1:
leas abort,x
t2:
leax t2-t1,y
leax toto,x
leas toto+titi,sp
leay titi,x
leas bb,y
leas min5b,pc
leas max5b,pc
leas min9b,pc
leas max9b,pc
titi = 10
toto = 100
min5b= -15
max5b= 15
min9b= -255
max9b= 255
bb = 10240