summaryrefslogtreecommitdiffhomepage
path: root/src/3p/udis86/syn-att.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/3p/udis86/syn-att.c')
-rw-r--r--src/3p/udis86/syn-att.c228
1 files changed, 228 insertions, 0 deletions
diff --git a/src/3p/udis86/syn-att.c b/src/3p/udis86/syn-att.c
new file mode 100644
index 0000000..d1ba89b
--- /dev/null
+++ b/src/3p/udis86/syn-att.c
@@ -0,0 +1,228 @@
+/* udis86 - libudis86/syn-att.c
+ *
+ * Copyright (c) 2002-2009 Vivek Thampi
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "types.h"
+#include "extern.h"
+#include "decode.h"
+#include "itab.h"
+#include "syn.h"
+#include "udint.h"
+
+/* -----------------------------------------------------------------------------
+ * opr_cast() - Prints an operand cast.
+ * -----------------------------------------------------------------------------
+ */
+static void
+opr_cast(struct ud* u, struct ud_operand* op)
+{
+ switch(op->size) {
+ case 16 : case 32 :
+ ud_asmprintf(u, "*"); break;
+ default: break;
+ }
+}
+
+/* -----------------------------------------------------------------------------
+ * gen_operand() - Generates assembly output for each operand.
+ * -----------------------------------------------------------------------------
+ */
+static void
+gen_operand(struct ud* u, struct ud_operand* op)
+{
+ switch(op->type) {
+ case UD_OP_CONST:
+ ud_asmprintf(u, "$0x%x", op->lval.udword);
+ break;
+
+ case UD_OP_REG:
+ ud_asmprintf(u, "%%%s", ud_reg_tab[op->base - UD_R_AL]);
+ break;
+
+ case UD_OP_MEM:
+ if (u->br_far) {
+ opr_cast(u, op);
+ }
+ if (u->pfx_seg) {
+ ud_asmprintf(u, "%%%s:", ud_reg_tab[u->pfx_seg - UD_R_AL]);
+ }
+ if (op->offset != 0) {
+ ud_syn_print_mem_disp(u, op, 0);
+ }
+ if (op->base) {
+ ud_asmprintf(u, "(%%%s", ud_reg_tab[op->base - UD_R_AL]);
+ }
+ if (op->index) {
+ if (op->base) {
+ ud_asmprintf(u, ",");
+ } else {
+ ud_asmprintf(u, "(");
+ }
+ ud_asmprintf(u, "%%%s", ud_reg_tab[op->index - UD_R_AL]);
+ }
+ if (op->scale) {
+ ud_asmprintf(u, ",%d", op->scale);
+ }
+ if (op->base || op->index) {
+ ud_asmprintf(u, ")");
+ }
+ break;
+
+ case UD_OP_IMM:
+ ud_asmprintf(u, "$");
+ ud_syn_print_imm(u, op);
+ break;
+
+ case UD_OP_JIMM:
+ ud_syn_print_addr(u, ud_syn_rel_target(u, op));
+ break;
+
+ case UD_OP_PTR:
+ switch (op->size) {
+ case 32:
+ ud_asmprintf(u, "$0x%x, $0x%x", op->lval.ptr.seg,
+ op->lval.ptr.off & 0xFFFF);
+ break;
+ case 48:
+ ud_asmprintf(u, "$0x%x, $0x%x", op->lval.ptr.seg,
+ op->lval.ptr.off);
+ break;
+ }
+ break;
+
+ default: return;
+ }
+}
+
+/* =============================================================================
+ * translates to AT&T syntax
+ * =============================================================================
+ */
+extern void
+ud_translate_att(struct ud *u)
+{
+ int size = 0;
+ int star = 0;
+
+ /* check if P_OSO prefix is used */
+ if (! P_OSO(u->itab_entry->prefix) && u->pfx_opr) {
+ switch (u->dis_mode) {
+ case 16:
+ ud_asmprintf(u, "o32 ");
+ break;
+ case 32:
+ case 64:
+ ud_asmprintf(u, "o16 ");
+ break;
+ }
+ }
+
+ /* check if P_ASO prefix was used */
+ if (! P_ASO(u->itab_entry->prefix) && u->pfx_adr) {
+ switch (u->dis_mode) {
+ case 16:
+ ud_asmprintf(u, "a32 ");
+ break;
+ case 32:
+ ud_asmprintf(u, "a16 ");
+ break;
+ case 64:
+ ud_asmprintf(u, "a32 ");
+ break;
+ }
+ }
+
+ if (u->pfx_lock)
+ ud_asmprintf(u, "lock ");
+ if (u->pfx_rep) {
+ ud_asmprintf(u, "rep ");
+ } else if (u->pfx_repe) {
+ ud_asmprintf(u, "repe ");
+ } else if (u->pfx_repne) {
+ ud_asmprintf(u, "repne ");
+ }
+
+ /* special instructions */
+ switch (u->mnemonic) {
+ case UD_Iretf:
+ ud_asmprintf(u, "lret ");
+ break;
+ case UD_Idb:
+ ud_asmprintf(u, ".byte 0x%x", u->operand[0].lval.ubyte);
+ return;
+ case UD_Ijmp:
+ case UD_Icall:
+ if (u->br_far) ud_asmprintf(u, "l");
+ if (u->operand[0].type == UD_OP_REG) {
+ star = 1;
+ }
+ ud_asmprintf(u, "%s", ud_lookup_mnemonic(u->mnemonic));
+ break;
+ case UD_Ibound:
+ case UD_Ienter:
+ if (u->operand[0].type != UD_NONE)
+ gen_operand(u, &u->operand[0]);
+ if (u->operand[1].type != UD_NONE) {
+ ud_asmprintf(u, ",");
+ gen_operand(u, &u->operand[1]);
+ }
+ return;
+ default:
+ ud_asmprintf(u, "%s", ud_lookup_mnemonic(u->mnemonic));
+ }
+
+ if (size == 8) {
+ ud_asmprintf(u, "b");
+ } else if (size == 16) {
+ ud_asmprintf(u, "w");
+ } else if (size == 64) {
+ ud_asmprintf(u, "q");
+ }
+
+ if (star) {
+ ud_asmprintf(u, " *");
+ } else {
+ ud_asmprintf(u, " ");
+ }
+
+ if (u->operand[3].type != UD_NONE) {
+ gen_operand(u, &u->operand[3]);
+ ud_asmprintf(u, ", ");
+ }
+ if (u->operand[2].type != UD_NONE) {
+ gen_operand(u, &u->operand[2]);
+ ud_asmprintf(u, ", ");
+ }
+ if (u->operand[1].type != UD_NONE) {
+ gen_operand(u, &u->operand[1]);
+ ud_asmprintf(u, ", ");
+ }
+ if (u->operand[0].type != UD_NONE) {
+ gen_operand(u, &u->operand[0]);
+ }
+}
+
+/*
+vim: set ts=2 sw=2 expandtab
+*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 23:26:28 +0000