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authorAlan Modra <amodra@gmail.com>1999-08-04 10:07:41 +0000
committerAlan Modra <amodra@gmail.com>1999-08-04 10:07:41 +0000
commiteecb386cd7d2df28baf22c22ba3b0a3a4e94fcd5 (patch)
tree28e4c1e3026c3aeb104d923bea3bc2f4781c60df /include
parent23b255aaddaf15fd568d27128f5c00d62a6486a6 (diff)
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Support for gcc to generate 16-bit i386 code. (.code16gcc)
Diffstat (limited to 'include')
-rw-r--r--include/opcode/ChangeLog6
-rw-r--r--include/opcode/i386.h59
2 files changed, 40 insertions, 25 deletions
diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog
index 735d700..48caf3c 100644
--- a/include/opcode/ChangeLog
+++ b/include/opcode/ChangeLog
@@ -1,3 +1,9 @@
+1999-08-04 Alan Modra <alan@spri.levels.unisa.edu.au>
+
+ * i386.h (i386_optab): Add DefaultSize modifier to all insns
+ that implicitly modify %esp. #undef d_Suf, x_suf, sld_suf,
+ sldx_suf, bwld_Suf, d_FP, x_FP, sld_FP, sldx_FP at end of table.
+
Wed Jul 28 02:04:24 1999 Jerry Quinn <jquinn@nortelnetworks.com>
Jeff Law <law@cygnus.com>
diff --git a/include/opcode/i386.h b/include/opcode/i386.h
index e7e78c8..9d73ebde 100644
--- a/include/opcode/i386.h
+++ b/include/opcode/i386.h
@@ -105,23 +105,23 @@ static const template i386_optab[] = {
{"movzx", 2, 0x0fb6, X, b_Suf|Modrm, { Reg8|ByteMem, WordReg, 0} },
/* push instructions */
-{"push", 1, 0x50, X, wl_Suf|ShortForm, { WordReg, 0, 0 } },
-{"push", 1, 0xff, 6, wl_Suf|Modrm, { WordReg|WordMem, 0, 0 } },
-{"push", 1, 0x6a, X, wl_Suf, { Imm8S, 0, 0} },
-{"push", 1, 0x68, X, wl_Suf, { Imm16|Imm32, 0, 0} },
-{"push", 1, 0x06, X, wl_Suf|Seg2ShortForm, { SReg2, 0, 0 } },
-{"push", 1, 0x0fa0, X, wl_Suf|Seg3ShortForm, { SReg3, 0, 0 } },
+{"push", 1, 0x50, X, wl_Suf|ShortForm|DefaultSize, { WordReg, 0, 0 } },
+{"push", 1, 0xff, 6, wl_Suf|Modrm|DefaultSize, { WordReg|WordMem, 0, 0 } },
+{"push", 1, 0x6a, X, wl_Suf|DefaultSize, { Imm8S, 0, 0} },
+{"push", 1, 0x68, X, wl_Suf|DefaultSize, { Imm16|Imm32, 0, 0} },
+{"push", 1, 0x06, X, wl_Suf|Seg2ShortForm|DefaultSize, { SReg2, 0, 0 } },
+{"push", 1, 0x0fa0, X, wl_Suf|Seg3ShortForm|DefaultSize, { SReg3, 0, 0 } },
/* push all */
-{"pusha", 0, 0x60, X, wl_Suf, { 0, 0, 0 } },
+{"pusha", 0, 0x60, X, wl_Suf|DefaultSize, { 0, 0, 0 } },
/* pop instructions */
-{"pop", 1, 0x58, X, wl_Suf|ShortForm, { WordReg, 0, 0 } },
-{"pop", 1, 0x8f, 0, wl_Suf|Modrm, { WordReg|WordMem, 0, 0 } },
+{"pop", 1, 0x58, X, wl_Suf|ShortForm|DefaultSize, { WordReg, 0, 0 } },
+{"pop", 1, 0x8f, 0, wl_Suf|Modrm|DefaultSize, { WordReg|WordMem, 0, 0 } },
#define POP_SEG_SHORT 0x07
-{"pop", 1, 0x07, X, wl_Suf|Seg2ShortForm, { SReg2, 0, 0 } },
-{"pop", 1, 0x0fa1, X, wl_Suf|Seg3ShortForm, { SReg3, 0, 0 } },
+{"pop", 1, 0x07, X, wl_Suf|Seg2ShortForm|DefaultSize, { SReg2, 0, 0 } },
+{"pop", 1, 0x0fa1, X, wl_Suf|Seg3ShortForm|DefaultSize, { SReg3, 0, 0 } },
/* pop all */
-{"popa", 0, 0x61, X, wl_Suf, { 0, 0, 0 } },
+{"popa", 0, 0x61, X, wl_Suf|DefaultSize, { 0, 0, 0 } },
/* xchg exchange instructions
xchg commutes: we allow both operand orders */
@@ -158,8 +158,8 @@ static const template i386_optab[] = {
{"cmc", 0, 0xf5, X, NoSuf, { 0, 0, 0} },
{"lahf", 0, 0x9f, X, NoSuf, { 0, 0, 0} },
{"sahf", 0, 0x9e, X, NoSuf, { 0, 0, 0} },
-{"pushf", 0, 0x9c, X, wl_Suf, { 0, 0, 0} },
-{"popf", 0, 0x9d, X, wl_Suf, { 0, 0, 0} },
+{"pushf", 0, 0x9c, X, wl_Suf|DefaultSize, { 0, 0, 0} },
+{"popf", 0, 0x9d, X, wl_Suf|DefaultSize, { 0, 0, 0} },
{"stc", 0, 0xf9, X, NoSuf, { 0, 0, 0} },
{"std", 0, 0xfd, X, NoSuf, { 0, 0, 0} },
{"sti", 0, 0xfb, X, NoSuf, { 0, 0, 0} },
@@ -311,12 +311,12 @@ static const template i386_optab[] = {
{"sar", 1, 0xd0, 7, bwl_Suf|W|Modrm, { Reg|AnyMem, 0, 0} },
/* control transfer instructions */
-{"call", 1, 0xe8, X, wl_Suf|JumpDword, { Disp16|Disp32, 0, 0} },
-{"call", 1, 0xff, 2, wl_Suf|Modrm, { WordReg|WordMem|JumpAbsolute, 0, 0} },
+{"call", 1, 0xe8, X, wl_Suf|JumpDword|DefaultSize, { Disp16|Disp32, 0, 0} },
+{"call", 1, 0xff, 2, wl_Suf|Modrm|DefaultSize, { WordReg|WordMem|JumpAbsolute, 0, 0} },
/* Intel Syntax */
-{"call", 2, 0x9a, X, wl_Suf|JumpInterSegment, { Imm16, Imm16|Imm32, 0} },
-{"lcall", 2, 0x9a, X, wl_Suf|JumpInterSegment, { Imm16, Imm16|Imm32, 0} },
-{"lcall", 1, 0xff, 3, wl_Suf|Modrm, { WordMem, 0, 0} },
+{"call", 2, 0x9a, X, wl_Suf|JumpInterSegment|DefaultSize, { Imm16, Imm16|Imm32, 0} },
+{"lcall", 2, 0x9a, X, wl_Suf|JumpInterSegment|DefaultSize, { Imm16, Imm16|Imm32, 0} },
+{"lcall", 1, 0xff, 3, wl_Suf|Modrm|DefaultSize, { WordMem, 0, 0} },
#define JUMP_PC_RELATIVE 0xeb
{"jmp", 1, 0xeb, X, NoSuf|Jump, { Disp, 0, 0} },
@@ -327,12 +327,12 @@ static const template i386_optab[] = {
{"ljmp", 2, 0xea, X, wl_Suf|JumpInterSegment, { Imm16, Imm16|Imm32, 0} },
{"ljmp", 1, 0xff, 5, wl_Suf|Modrm, { WordMem, 0, 0} },
-{"ret", 0, 0xc3, X, wl_Suf, { 0, 0, 0} },
-{"ret", 1, 0xc2, X, wl_Suf, { Imm16, 0, 0} },
-{"lret", 0, 0xcb, X, wl_Suf, { 0, 0, 0} },
-{"lret", 1, 0xca, X, wl_Suf, { Imm16, 0, 0} },
-{"enter", 2, 0xc8, X, wl_Suf, { Imm16, Imm8, 0} },
-{"leave", 0, 0xc9, X, wl_Suf, { 0, 0, 0} },
+{"ret", 0, 0xc3, X, wl_Suf|DefaultSize, { 0, 0, 0} },
+{"ret", 1, 0xc2, X, wl_Suf|DefaultSize, { Imm16, 0, 0} },
+{"lret", 0, 0xcb, X, wl_Suf|DefaultSize, { 0, 0, 0} },
+{"lret", 1, 0xca, X, wl_Suf|DefaultSize, { Imm16, 0, 0} },
+{"enter", 2, 0xc8, X, wl_Suf|DefaultSize, { Imm16, Imm8, 0} },
+{"leave", 0, 0xc9, X, wl_Suf|DefaultSize, { 0, 0, 0} },
/* conditional jumps */
{"jo", 1, 0x70, X, NoSuf|Jump, { Disp, 0, 0} },
@@ -1035,14 +1035,23 @@ static const template i386_optab[] = {
#undef b_Suf
#undef w_Suf
#undef l_Suf
+#undef d_Suf
+#undef x_Suf
#undef bw_Suf
#undef bl_Suf
#undef wl_Suf
#undef sl_Suf
+#undef sld_Suf
+#undef sldx_Suf
#undef bwl_Suf
+#undef bwld_Suf
#undef FP
#undef l_FP
+#undef d_FP
+#undef x_FP
#undef sl_FP
+#undef sld_FP
+#undef sldx_FP
#define MAX_MNEM_SIZE 16 /* for parsing insn mnemonics from input */