mirror of
https://github.com/radareorg/radare2.git
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535a2aa713
* Split core/cmd.c into disasm.c and core/visual.c into vmenus.c * Fix some warnings reported by valgrind * Chop instructions disassembled by udis86 * Fix visual prompt display in debugger mode * Added 'pdi' and 'pdf' commands - Used to print just instructions or lengths - Documented via 'pd?' * Added initial work on a test suite for r2 - Spot a crash!
83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
/* radare - LGPL - Copyright 2009-2010 pancake <youterm.com> - nibble<.ds@gmail.com> */
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#include <stdio.h>
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#include <string.h>
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#include <r_types.h>
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#include <r_lib.h>
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#include <r_asm.h>
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static int disassemble(struct r_asm_t *a, struct r_asm_op_t *op, const ut8 *buf, ut64 len) {
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char *buf_cp, *b;
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int i;
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if ((b = buf_cp = malloc (len+1)) == NULL)
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return 0;
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memcpy (buf_cp, buf, len+1);
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for (i=0; b[0] == b[1] && i<len; b++, i++);
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b[1] = '\0';
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switch(buf[0]) {
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case '[':
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strcpy (op->buf_asm, "[ loop {");
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break;
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case ']':
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strcpy (op->buf_asm, "] }"); // TODO: detect clause and put label name
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break;
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case '>':
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if (i>1) strcpy (op->buf_asm, "> add [ptr]");
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else strcpy (op->buf_asm, "> inc [ptr]");
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break;
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case '<':
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if (i>1) strcpy (op->buf_asm, "< sub [ptr]");
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else strcpy (op->buf_asm, "< dec [ptr]");
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break;
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case '+':
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if (i>1) strcpy (op->buf_asm, "+ add [ptr]");
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else strcpy (op->buf_asm, "+ inc [ptr]");
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break;
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case '-':
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if (i>1) strcpy (op->buf_asm, "- sub [ptr]");
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else strcpy (op->buf_asm, "- dec [ptr]");
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break;
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case ',':
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strcpy (op->buf_asm, ", [ptr] = getch()");
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break;
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case '.':
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strcpy (op->buf_asm, ". print( [ptr] )");
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break;
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case '\x00':
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strcpy (op->buf_asm, " trap");
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break;
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default:
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strcpy (op->buf_asm, " nop");
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break;
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}
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if (i>0) sprintf (op->buf_asm, "%s, %d", op->buf_asm, i+1);
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if (i<1) i=1; else i++;
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free (buf_cp);
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return i;
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}
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RAsmPlugin r_asm_plugin_bf = {
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.name = "bf",
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.arch = "bf",
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.bits = (int[]){ 8, 16, 32, 0 }, // dummy
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.desc = "Brainfuck disassembly plugin",
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.init = NULL,
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.fini = NULL,
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.disassemble = &disassemble,
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.assemble = NULL
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};
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#ifndef CORELIB
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struct r_lib_struct_t radare_plugin = {
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.type = R_LIB_TYPE_ASM,
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.data = &r_asm_plugin_bf
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};
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#endif
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