opcode_arg_fmt.c

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// SPDX-FileCopyrightText: 2020 FXTi <zjxiang1998@gmail.com>
// SPDX-License-Identifier: LGPL-3.0-only
 
#include "opcode.h"
 
const char *format_extended_arg(ut32 oparg) {
    return rz_str_newf("%u", oparg * (1 << 16));
}
 
const char *format_CALL_FUNCTION_pos_name_encoded(ut32 oparg) {
    ut32 pos_args = oparg & 0xFF;
    ut32 name = (oparg >> 8) & 0xFF;
    return rz_str_newf("%u positional, %u named", pos_args, name);
}
 
const char *format_MAKE_FUNCTION_arg_3x(ut32 oparg) {
    ut32 pos_args = oparg & 0xFF;
    ut32 name_default = (oparg >> 8) & 0xFF;
    ut32 annotate_args = (oparg >> 16) & 0x7FFF;
    return rz_str_newf("%u positional, %u name and default, %u annotations", pos_args, name_default, annotate_args);
}
 
const char *format_CALL_FUNCTION_KW_36(ut32 oparg) {
    return rz_str_newf("%u total positional and keyword args", oparg);
}
 
const char *format_CALL_FUNCTION_EX_36(ut32 oparg) {
    return rz_str_new((oparg & 0x01) ? "keyword args" : "");
}
 
static const char *MAKE_FUNCTION_FLAGS[] = { "default", "keyword-only", "annotation", "closure" };
 
const char *format_MAKE_FUNCTION_arg_36(ut32 oparg) {
    size_t i;
    char *ret = rz_str_new(" ");
    for (i = 0; i < sizeof(MAKE_FUNCTION_FLAGS) / sizeof(char *); ++i) {
        if (oparg & 0x1) {
            rz_str_appendf(ret, ", %s", MAKE_FUNCTION_FLAGS[i]);
        } else {
            free(ret);
            ret = rz_str_new(MAKE_FUNCTION_FLAGS[i]);
        }
        oparg >>= 1;
    }
    return ret;
}
 
const char *format_value_flags_36(ut32 oparg) {
    const char *ret = "";
    switch (oparg & 0x3) {
    case 1:
        ret = "!s";
        break;
    case 2:
        ret = "!r";
        break;
    case 3:
        ret = "!a";
        break;
    }
    if ((oparg & 0x4) == 0x4) {
        // pop fmt_spec from the stack and use it, else use an
        // empty fmt_spec.
        ret = "";
    }
    return rz_str_new(ret);
}
 
const char *format_extended_arg_36(ut32 oparg) {
    return rz_str_newf("%u", oparg * (1 << 8));
}