Archipelago » qemu

#include <stdlib.h>

#include <stdio.h>

#include <math.h>

#define xglue(x, y) x ## y

#define glue(x, y) xglue(x, y)

#define stringify(s)        tostring(s)

#define tostring(s)        #s

#define CC_C           0x0001

#define CC_P         0x0004

#define CC_A        0x0010

#define CC_Z        0x0040

#define CC_S    0x0080

#define CC_O    0x0800

/* XXX: currently no A flag */

#define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O)

#define __init_call        __attribute__ ((unused,__section__ (".initcall.init")))

static void *call_start __init_call = NULL;

#define OP add

#include "test-i386.h"

#define OP sub

#include "test-i386.h"

#define OP xor

#include "test-i386.h"

#define OP and

#include "test-i386.h"

#define OP or

#include "test-i386.h"

#define OP cmp

#include "test-i386.h"

#define OP adc

#define OP_CC

#include "test-i386.h"

#define OP sbb

#define OP_CC

#include "test-i386.h"

#define OP inc

#define OP_CC

#define OP1

#include "test-i386.h"

#define OP dec

#define OP_CC

#define OP1

#include "test-i386.h"

#define OP neg

#define OP_CC

#define OP1

#include "test-i386.h"

#define OP not

#define OP_CC

#define OP1

#include "test-i386.h"

/* lea test (modrm support) */

#define TEST_LEA(STR)\

{\

    asm("leal " STR ", %0"\

        : "=r" (res)\

        : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\

    printf("lea %s = %08x\n", STR, res);\

}

#define TEST_LEA16(STR)\

{\

    asm(".code16 ; .byte 0x67 ; leal " STR ", %0 ; .code32"\

        : "=wq" (res)\

        : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\

    printf("lea %s = %08x\n", STR, res);\

}

void test_lea(void)

{

    int eax, ebx, ecx, edx, esi, edi, res;

    eax = 0x0001;

    ebx = 0x0002;

    ecx = 0x0004;

    edx = 0x0008;

    esi = 0x0010;

    edi = 0x0020;

    TEST_LEA("0x4000");

    TEST_LEA("(%%eax)");

    TEST_LEA("(%%ebx)");

    TEST_LEA("(%%ecx)");

    TEST_LEA("(%%edx)");

    TEST_LEA("(%%esi)");

    TEST_LEA("(%%edi)");

    TEST_LEA("0x40(%%eax)");

    TEST_LEA("0x40(%%ebx)");

    TEST_LEA("0x40(%%ecx)");

    TEST_LEA("0x40(%%edx)");

    TEST_LEA("0x40(%%esi)");

    TEST_LEA("0x40(%%edi)");

    TEST_LEA("0x4000(%%eax)");

    TEST_LEA("0x4000(%%ebx)");

    TEST_LEA("0x4000(%%ecx)");

    TEST_LEA("0x4000(%%edx)");

    TEST_LEA("0x4000(%%esi)");

    TEST_LEA("0x4000(%%edi)");

    TEST_LEA("(%%eax, %%ecx)");

    TEST_LEA("(%%ebx, %%edx)");

    TEST_LEA("(%%ecx, %%ecx)");

    TEST_LEA("(%%edx, %%ecx)");

    TEST_LEA("(%%esi, %%ecx)");

    TEST_LEA("(%%edi, %%ecx)");

    TEST_LEA("0x40(%%eax, %%ecx)");

    TEST_LEA("0x4000(%%ebx, %%edx)");

    TEST_LEA("(%%ecx, %%ecx, 2)");

    TEST_LEA("(%%edx, %%ecx, 4)");

    TEST_LEA("(%%esi, %%ecx, 8)");

    TEST_LEA("(,%%eax, 2)");

    TEST_LEA("(,%%ebx, 4)");

    TEST_LEA("(,%%ecx, 8)");

    TEST_LEA("0x40(,%%eax, 2)");

    TEST_LEA("0x40(,%%ebx, 4)");

    TEST_LEA("0x40(,%%ecx, 8)");

    TEST_LEA("-10(%%ecx, %%ecx, 2)");

    TEST_LEA("-10(%%edx, %%ecx, 4)");

    TEST_LEA("-10(%%esi, %%ecx, 8)");

    TEST_LEA("0x4000(%%ecx, %%ecx, 2)");

    TEST_LEA("0x4000(%%edx, %%ecx, 4)");

    TEST_LEA("0x4000(%%esi, %%ecx, 8)");

    /* limited 16 bit addressing test */

    TEST_LEA16("0x4000");

    TEST_LEA16("(%%bx)");

    TEST_LEA16("(%%si)");

    TEST_LEA16("(%%di)");

    TEST_LEA16("0x40(%%bx)");

    TEST_LEA16("0x40(%%si)");

    TEST_LEA16("0x40(%%di)");

    TEST_LEA16("0x4000(%%bx)");

    TEST_LEA16("0x4000(%%si)");

    TEST_LEA16("(%%bx,%%si)");

    TEST_LEA16("(%%bx,%%di)");

    TEST_LEA16("0x40(%%bx,%%si)");

    TEST_LEA16("0x40(%%bx,%%di)");

    TEST_LEA16("0x4000(%%bx,%%si)");

    TEST_LEA16("0x4000(%%bx,%%di)");

}

#define TEST_JCC(JCC, v1, v2)\

{\

    asm("movl $1, %0\n\t"\

        "cmpl %2, %1\n\t"\

        JCC " 1f\n\t"\

        "movl $0, %0\n\t"\

        "1:\n\t"\

        : "=r" (res)\

        : "r" (v1), "r" (v2));\

    printf("%-10s %d\n", JCC, res);\

}

/* various jump tests */

void test_jcc(void)

{

    int res;

    TEST_JCC("jne", 1, 1);

    TEST_JCC("jne", 1, 0);

    TEST_JCC("je", 1, 1);

    TEST_JCC("je", 1, 0);

    TEST_JCC("jl", 1, 1);

    TEST_JCC("jl", 1, 0);

    TEST_JCC("jl", 1, -1);

    TEST_JCC("jle", 1, 1);

    TEST_JCC("jle", 1, 0);

    TEST_JCC("jle", 1, -1);

    TEST_JCC("jge", 1, 1);

    TEST_JCC("jge", 1, 0);

    TEST_JCC("jge", -1, 1);

    TEST_JCC("jg", 1, 1);

    TEST_JCC("jg", 1, 0);

    TEST_JCC("jg", 1, -1);

    TEST_JCC("jb", 1, 1);

    TEST_JCC("jb", 1, 0);

    TEST_JCC("jb", 1, -1);

    TEST_JCC("jbe", 1, 1);

    TEST_JCC("jbe", 1, 0);

    TEST_JCC("jbe", 1, -1);

    TEST_JCC("jae", 1, 1);

    TEST_JCC("jae", 1, 0);

    TEST_JCC("jae", 1, -1);

    TEST_JCC("ja", 1, 1);

    TEST_JCC("ja", 1, 0);

    TEST_JCC("ja", 1, -1);

    TEST_JCC("jp", 1, 1);

    TEST_JCC("jp", 1, 0);

    TEST_JCC("jnp", 1, 1);

    TEST_JCC("jnp", 1, 0);

    TEST_JCC("jo", 0x7fffffff, 0);

    TEST_JCC("jo", 0x7fffffff, -1);

    TEST_JCC("jno", 0x7fffffff, 0);

    TEST_JCC("jno", 0x7fffffff, -1);

    TEST_JCC("js", 0, 1);

    TEST_JCC("js", 0, -1);

    TEST_JCC("js", 0, 0);

    TEST_JCC("jns", 0, 1);

    TEST_JCC("jns", 0, -1);

    TEST_JCC("jns", 0, 0);

}

static void *call_end __init_call = NULL;

int main(int argc, char **argv)

{

    void **ptr;

    void (*func)(void);

    ptr = &call_start + 1;

    while (*ptr != NULL) {

        func = *ptr++;

        func();

    }

    test_lea();

    test_jcc();

    return 0;

}