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engine.cpp
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engine.cpp
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// Originally created by Youness Alaoui
// Pseudo code generation by imGol2den
// Example: http://i.gyazo.com/15de806b17ee28315945993e303b4db3.gif
#include "engine.hpp"
#define MASK32_ALLSET 0xFFFFFFFF
#define MASK64_ALLSET 0xFFFFFFFFFFFFFFFFLL
#define BUFFER_SIZE 128
char g_buffer[BUFFER_SIZE];
// Specific instruction buffers
char g_instruction[BUFFER_SIZE];
char g_operand0[BUFFER_SIZE], g_operand1[BUFFER_SIZE], g_operand2[BUFFER_SIZE], g_operand3[BUFFER_SIZE], g_operand4[BUFFER_SIZE];
char g_RA[BUFFER_SIZE], g_RS[BUFFER_SIZE], g_RB[BUFFER_SIZE];
int g_SH, g_MB, g_ME;
// Function parsing buffers
char g_functionName[BUFFER_SIZE], g_functionPrototype[BUFFER_SIZE];
char g_pseudocode[BUFFER_SIZE];
// Comparing struct and buffer
struct cmp_info_t {
char opperand1[BUFFER_SIZE], opperand2[BUFFER_SIZE];
};
cmp_info_t cmp_info[10]; // I think theres only like 7 conditional registers but what ever lol
// generates the mask between MaskBegin(MB) and MaskEnd(ME) inclusive
// MB and ME should be values 0 - 31
unsigned int GenerateMask32(int MB, int ME)
{
if( MB < 0 || ME < 0 ||
MB > 31 || ME > 31 )
{
printf("Error with paramters GenerateMask32(%d, %d)\n", MB, ME);
return 0;
}
unsigned int mask = 0;
if(MB < ME+1)
{
// normal mask
for(int i=MB; i<=ME; i=i+1)
{
mask = mask | (1<<(31-i));
}
}
else if(MB == ME+1)
{
// all mask bits set
mask = MASK32_ALLSET;
}
else if(MB > ME+1)
{
// split mask
unsigned int mask_lo = GenerateMask32(0, ME);
unsigned int mask_hi = GenerateMask32(MB, 31);
mask = mask_lo | mask_hi;
}
return mask;
}
// generates the mask between MaskBegin(MB) and MaskEnd(ME) inclusive
// MB and ME should be values 0 - 63
unsigned long long GenerateMask64(int MB, int ME)
{
if( MB < 0 || ME < 0 ||
MB > 63 || ME > 63 )
{
printf("Error with paramters GenerateMask64(%d, %d)\n", MB, ME);
return 0;
}
unsigned long long mask = 0;
if(MB < ME+1)
{
// normal mask
for(int i=MB; i<=ME; i=i+1)
{
mask = mask | (unsigned long long)(1LL<<(63-i));
}
}
else if(MB == ME+1)
{
// all mask bits set
mask = MASK64_ALLSET;
}
else if(MB > ME+1)
{
// split mask
unsigned long long mask_lo = GenerateMask64(0, ME);
unsigned long long mask_hi = GenerateMask64(MB, 63);
mask = mask_lo | mask_hi;
}
return mask;
}
// generate string showing rotation or shifting within instruction
// returns: true if string requires brackets if a mask is used, ie: (r4 << 2) & 0xFF
bool GenerateRotate32(char* buff, int buffSize, const char* src, int leftShift, int rightShift, unsigned int& mask)
{
// work out "rotate" part of the instruction
if( leftShift== 0 && rightShift==32 ||
leftShift==32 && rightShift== 0 )
{
sprintf_s(buff, buffSize, "%s", src);
return false;
}
if(((MASK32_ALLSET<<leftShift ) & mask) == 0)
{
// right shift only
if((MASK32_ALLSET>>rightShift) == mask)
mask = MASK32_ALLSET;
sprintf_s(buff, buffSize, "%s >> %d", src, rightShift);
}
else if(((MASK32_ALLSET>>rightShift) & mask) == 0)
{
// left shift only
if((MASK32_ALLSET<<leftShift) == mask)
mask = MASK32_ALLSET;
sprintf_s(buff, buffSize, "%s << %d", src, leftShift);
}
else
{
// shift both ways
sprintf_s(buff, buffSize, "(%s << %d) | (%s >> %d)", src, leftShift, src, rightShift);
}
return true;
}
// generate string showing rotation or shifting within instruction
// returns: true if string requires brackets if a mask is used, ie: (r4 << 2) & 0xFF
bool GenerateRotate64(char* buff, int buffSize, const char* src, int leftShift, int rightShift, unsigned long long& mask)
{
// work out "rotate" part of the instruction
if( leftShift== 0 && rightShift==64 ||
leftShift==64 && rightShift== 0 )
{
// no rotation
sprintf_s(buff, buffSize, "%s", src);
return false;
}
if(((MASK64_ALLSET<<leftShift ) & mask) == 0)
{
// right shift only
if((MASK64_ALLSET>>rightShift) == mask)
mask = MASK64_ALLSET;
sprintf_s(buff, buffSize, "%s >> %d", src, rightShift);
}
else if(((MASK64_ALLSET>>rightShift) & mask) == 0)
{
// left shift only
if((MASK64_ALLSET<<leftShift) == mask)
mask = MASK64_ALLSET;
sprintf_s(buff, buffSize, "%s << %d", src, leftShift);
}
else
{
// shift both ways
sprintf_s(buff, buffSize, "(%s << %d) | (%s >> %d)", src, leftShift, src, rightShift);
}
return true;
}
// register rotate and immediate mask
bool Rotate_iMask32(char* buff, int buffSize, const char* leftRotate, int mb, int me)
{
// calculate the mask
// if no mask, then result is always 0
unsigned int mask = GenerateMask32(mb, me);
if(mask == 0)
{
// no rotation
sprintf_s(buff, buffSize, "%s = 0;", g_RA);
return true;
}
// work out "rotate" part of the instruction
// if all mask bits are set, then no need to use the mask
char rot_str[BUFFER_SIZE];
sprintf_s(rot_str, sizeof(rot_str), "(%s << %s) | (%s >> 32-%s)", g_RS, leftRotate, g_RS, leftRotate);
if(mask == MASK32_ALLSET)
{
//sprintf_s(buff, buffSize, "%s = (u32)(%s)", g_RA, rot_str);
sprintf_s(buff, buffSize, "%s = %s;", g_RA, rot_str);
return true;
}
// generate mask string
char mask_str[BUFFER_SIZE];
sprintf_s(mask_str, sizeof(mask_str), "%s%X", (mask<0xA)?"":"0x", mask);
// generate the resultant string
sprintf_s(buff, buffSize, "%s = (%s) & %s;", g_RA, rot_str, mask_str);
return true;
}
// immediate rotate and immediate mask
bool iRotate_iMask32(char* buff, int buffSize, int leftRotate, int mb, int me)
{
// calculate the mask
// if no mask, then result is always 0
unsigned int mask = GenerateMask32(mb, me);
if(mask == 0)
{
sprintf_s(buff, buffSize, "%s = 0;", g_RA);
return true;
}
// work out "rotate" part of the instruction
// if all mask bits are set, then no need to use the mask
char rot_str[BUFFER_SIZE];
bool brackets = GenerateRotate32(rot_str, sizeof(rot_str), g_RS, leftRotate, 32-leftRotate, mask);
if(mask == MASK32_ALLSET)
{
// if(brackets)
// sprintf_s(buff, buffSize, "%s = (u32)(%s)", g_RA, rot_str);
// else
// sprintf_s(buff, buffSize, "%s = (u32)%s", g_RA, rot_str);
sprintf_s(buff, buffSize, "%s = %s;", g_RA, rot_str);
return true;
}
// MASK32_ALLSET << leftRotate
// generate mask string
char mask_str[BUFFER_SIZE];
sprintf_s(mask_str, sizeof(mask_str), "%s%X", (mask<0xA)?"":"0x", mask);
// generate the resultant string
if(brackets)
sprintf_s(buff, buffSize, "%s = (%s) & %s;", g_RA, rot_str, mask_str);
else
sprintf_s(buff, buffSize, "%s = %s & %s;", g_RA, rot_str, mask_str);
return true;
}
// insert immediate rotate and immediate mask
bool insert_iRotate_iMask32(char* buff, int buffSize, int leftRotate, int mb, int me)
{
// calculate the mask
// if no mask, then result is always 0
unsigned int mask = GenerateMask32(mb, me);
if(mask == 0)
{
sprintf_s(buff, buffSize, "%s = %s;", g_RA, g_RA);
return true;
}
// work out "rotate" part of the instruction
// if all mask bits are set, then no need to use the mask
char rot_str[BUFFER_SIZE];
bool brackets = GenerateRotate32(rot_str, sizeof(rot_str), g_RS, leftRotate, 32-leftRotate, mask);
if(mask == MASK32_ALLSET)
{
sprintf_s(buff, buffSize, "%s = %s;", g_RA, rot_str);
return true;
}
// generate mask strings
char mask_str[BUFFER_SIZE];
sprintf_s(mask_str, sizeof(mask_str), "%s%X", (mask<0xA)?"":"0x", mask);
unsigned int not_mask = ~mask;
char not_mask_str[BUFFER_SIZE];
sprintf_s(not_mask_str, sizeof(not_mask_str), "%s%X", (not_mask<0xA)?"":"0x", not_mask);
// generate the resultant string
if(brackets)
sprintf_s(buff, buffSize, "%s = (%s & ~%s) | ((%s) & %s);", g_RA,
g_RA, mask_str,
rot_str, mask_str);
else
sprintf_s(buff, buffSize, "%s = (%s & ~%s) | (%s & %s);", g_RA,
g_RA, mask_str,
rot_str, mask_str);
return true;
}
// register rotate and immediate mask
bool Rotate_iMask64(char* buff, int buffSize, const char* leftRotate, int mb, int me)
{
// calculate the mask
// if no mask, then result is always 0
unsigned long long mask = GenerateMask64(mb, me);
if(mask == 0)
{
sprintf_s(buff, buffSize, "%s = 0;", g_RA);
return true;
}
// work out "rotate" part of the instruction
// if all mask bits are set, then no need to use the mask
char rot_str[BUFFER_SIZE];
sprintf_s(rot_str, sizeof(rot_str), "(%s << %s) | (%s >> 64-%s)", g_RS, leftRotate, g_RS, leftRotate);
if(mask == MASK64_ALLSET)
{
sprintf_s(buff, buffSize, "%s = %s;", g_RA, rot_str);
return true;
}
// generate mask string
char mask_str[BUFFER_SIZE];
if(mask>>32 == 0)
sprintf_s(mask_str, sizeof(mask_str), "%s%X", (mask<0xA)?"":"0x", (unsigned long)mask);
else
sprintf_s(mask_str, sizeof(mask_str), "%s%X%08X", (mask<0xA)?"":"0x", (unsigned long)(mask>>32), (unsigned long)mask);
// generate the resultant string
sprintf_s(buff, buffSize, "%s = (%s) & %s;", g_RA, rot_str, mask_str);
return true;
}
// immediate rotate and immediate mask
bool iRotate_iMask64(char* buff, int buffSize, int leftRotate, int mb, int me)
{
// calculate the mask
// if no mask, then result is always 0
unsigned long long mask = GenerateMask64(mb, me);
if(mask == 0)
{
sprintf_s(buff, buffSize, "%s = 0;", g_RA);
return true;
}
// work out "rotate" part of the instruction
// if all mask bits are set, then no need to use the mask
char rot_str[BUFFER_SIZE];
bool brackets = GenerateRotate64(rot_str, sizeof(rot_str), g_RS, leftRotate, 64-leftRotate, mask);
if(mask == MASK64_ALLSET)
{
sprintf_s(buff, buffSize, "%s = %s;", g_RA, rot_str);
return true;
}
// generate mask string
char mask_str[BUFFER_SIZE];
if(mask>>32 == 0)
sprintf_s(mask_str, sizeof(mask_str), "%s%X", (mask<0xA)?"":"0x", (unsigned long)mask);
else
sprintf_s(mask_str, sizeof(mask_str), "%s%X%08X", (mask<0xA)?"":"0x", (unsigned long)(mask>>32), (unsigned long)mask);
// generate the resultant string
if(brackets)
sprintf_s(buff, buffSize, "%s = (%s) & %s;", g_RA, rot_str, mask_str);
else
sprintf_s(buff, buffSize, "%s = %s & %s;", g_RA, rot_str, mask_str);
return true;
}
// insert immediate rotate and immediate mask
bool insert_iRotate_iMask64(char* buff, int buffSize, int leftRotate, int mb, int me)
{
// calculate the mask
// if no mask, then result is always 0
unsigned long long mask = GenerateMask64(mb, me);
if(mask == 0)
{
sprintf_s(buff, buffSize, "%s = 0;", g_RA);
return true;
}
// work out "rotate" part of the instruction
// if all mask bits are set, then no need to use the mask
char rot_str[BUFFER_SIZE];
bool brackets = GenerateRotate64(rot_str, sizeof(rot_str), g_RS, leftRotate, 64-leftRotate, mask);
if(mask == MASK64_ALLSET)
{
sprintf_s(buff, buffSize, "%s = %s;", g_RA, rot_str);
return true;
}
// generate mask string
char mask_str[BUFFER_SIZE];
if(mask>>32 == 0)
sprintf_s(mask_str, sizeof(mask_str), "%s%X", (mask<0xA)?"":"0x", (unsigned long)mask);
else
sprintf_s(mask_str, sizeof(mask_str), "%s%X%08X", (mask<0xA)?"":"0x", (unsigned long)(mask>>32), (unsigned long)mask);
unsigned long long not_mask = ~mask;
char not_mask_str[BUFFER_SIZE];
if(not_mask>>32 == 0)
sprintf_s(not_mask_str, sizeof(not_mask_str), "%s%X", (not_mask<0xA)?"":"0x", (unsigned long)not_mask);
else
sprintf_s(not_mask_str, sizeof(not_mask_str), "%s%X%08X", (not_mask<0xA)?"":"0x", (unsigned long)(not_mask>>32), (unsigned long)not_mask);
// generate the resultant string
if(brackets)
sprintf_s(buff, buffSize, "%s = (%s & ~%s) | ((%s) & %s);", g_RA,
g_RA, mask_str,
rot_str, mask_str);
else
sprintf_s(buff, buffSize, "%s = (%s & ~%s) | (%s & %s);", g_RA,
g_RA, mask_str,
rot_str, mask_str);
return true;
}
int parse_instruction(ea_t ea, strvec_t *sv) {
#pragma region Instruction
ua_mnem(ea, g_instruction, BUFFER_SIZE);
tag_remove(g_instruction, g_instruction, BUFFER_SIZE);
ua_ana0(ea);
if(cmd.itype == 13 && (cmd.auxpref & 8)) {
qstrncpy(g_instruction, "bl", BUFFER_SIZE);
} else if(cmd.itype == 320 && cmd.auxpref == 0x500) {
qstrncpy(g_instruction, "blr", BUFFER_SIZE);
}
char *ptr = (char*)qstrstr(g_instruction, ".");
if(ptr) {
*ptr = 0;
}
#pragma endregion
#pragma region Instruction operands
ua_outop2(ea, g_operand0, BUFFER_SIZE, 0);
tag_remove(g_operand0, g_operand0, BUFFER_SIZE);
ptr = (char*)qstrstr(g_operand0, "#");
if(ptr) {
*(ptr - 1) = 0;
*ptr = 0;
}
ua_outop2(ea, g_operand1, BUFFER_SIZE, 1);
tag_remove(g_operand1, g_operand1, BUFFER_SIZE);
ptr = (char*)qstrstr(g_operand1, "#");
if(ptr) {
*(ptr - 1) = 0;
*ptr = 0;
}
ua_outop2(ea, g_operand2, BUFFER_SIZE, 2);
ptr = (char*)qstrstr(g_operand2, "#");
if(ptr) {
*(ptr - 1) = 0;
*ptr = 0;
}
tag_remove(g_operand2, g_operand2, BUFFER_SIZE);
const char *comma1 = qstrstr(g_operand2, ",");
if(comma1 != NULL) {
qstrncpy(g_operand3, comma1 + 1, BUFFER_SIZE);
g_operand2[comma1 - g_operand2] = 0;
const char *comma2 = qstrstr(comma1 + 1, ",");
if(comma2 != NULL) {
qstrncpy(g_operand4, comma2 + 1, BUFFER_SIZE);
g_operand3[comma2 - (comma1 + 1)] = 0;
}
}
ptr = (char*)qstrstr(g_operand3, "#");
if(ptr) {
*(ptr - 1) = 0;
*ptr = 0;
}
ptr = (char*)qstrstr(g_operand4, "#");
if(ptr) {
*(ptr - 1) = 0;
*ptr = 0;
}
#pragma endregion
#pragma region Labels
get_name(ea, ea, g_buffer, BUFFER_SIZE);
if(strcmp(g_functionName, g_buffer) && *g_buffer != NULL) {
qstrncat(g_buffer, ":", BUFFER_SIZE);
sv->push_back(simpleline_t(g_buffer));
}
#pragma endregion
#pragma region add | addi
if(!qstrcmp(g_instruction, "add") || !qstrcmp(g_instruction, "addi")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s += %s;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s + %s;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region addis
else if(!qstrcmp(g_instruction, "addis")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s += %s << 16;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = (%s + %s) << 16;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region and | andi
else if(!qstrcmp(g_instruction, "and") || !qstrcmp(g_instruction, "andi")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s &= %s;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s & %s;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region andis
else if(!qstrcmp(g_instruction, "andis")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s &= %s << 16;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = (%s & %s) << 16;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region b
else if(!qstrcmp(g_instruction, "b")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "goto %s;", g_operand0);
}
#pragma endregion
#pragma region bdnz
else if(!qstrcmp(g_instruction, "bdnz")) {
sv->push_back(simpleline_t("CTR--;")); // lol
qsnprintf(g_pseudocode, BUFFER_SIZE, "goto %s;", g_operand1);
}
#pragma endregion
#pragma region beq
else if(!qstrcmp(g_instruction, "beq")) {
int cr = atol(g_operand0 + 2);
if(!qstrcmp(g_operand1, "lr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s == %s) { return; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s == %s) { goto %s; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2, g_operand1);
}
}
#pragma endregion
#pragma region bge
else if(!qstrcmp(g_instruction, "bge")) {
int cr = atol(g_operand0 + 2);
if(!qstrcmp(g_operand1, "lr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s >= %s) { return; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s >= %s) { goto %s; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2, g_operand1);
}
}
#pragma endregion
#pragma region bgt
else if(!qstrcmp(g_instruction, "bgt")) {
int cr = atol(g_operand0 + 2);
if(!qstrcmp(g_operand1, "lr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s > %s) { return; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s > %s) { goto %s; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2, g_operand1);
}
}
#pragma endregion
#pragma region bl
else if(!qstrcmp(g_instruction, "bl")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s(...);", g_operand0);
}
#pragma endregion
#pragma region blr
else if(!qstrcmp(g_instruction, "blr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "return;", g_operand0);
}
#pragma endregion
#pragma region ble
else if(!qstrcmp(g_instruction, "ble")) {
int cr = atol(g_operand0 + 2);
if(!qstrcmp(g_operand1, "lr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s <= %s) { return; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s <= %s) { goto %s; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2, g_operand1);
}
}
#pragma endregion
#pragma region blt
else if(!qstrcmp(g_instruction, "blt")) {
int cr = atol(g_operand0 + 2);
if(!qstrcmp(g_operand1, "lr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s < %s) { return; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s < %s) { goto %s; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2, g_operand1);
}
}
#pragma endregion
#pragma region bne
else if(!qstrcmp(g_instruction, "bne")) {
int cr = atol(g_operand0 + 2);
if(!qstrcmp(g_operand1, "lr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s != %s) { return; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "if(%s != %s) { goto %s; }", cmp_info[cr].opperand1, cmp_info[cr].opperand2, g_operand1);
}
}
#pragma endregion
#pragma region cmpd | cmpdi | cmpld | cmpldi | cmpw | cmpwi | cmplw | cmplwi
else if(!qstrcmp(g_instruction, "cmpd") || !qstrcmp(g_instruction, "cmpdi") || !qstrcmp(g_instruction, "cmpld") || !qstrcmp(g_instruction, "cmpldi") || !qstrcmp(g_instruction, "cmpw") || !qstrcmp(g_instruction, "cmpwi") || !qstrcmp(g_instruction, "cmplw") || !qstrcmp(g_instruction, "cmplwi")) {
if(!strncmp(g_operand0, "cr", 2)) {
int cr = atol(g_operand0 + 2);
qstrncpy(cmp_info[cr].opperand1, g_operand1, BUFFER_SIZE);
qstrncpy(cmp_info[cr].opperand2, g_operand2, BUFFER_SIZE);
return 1;
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "// unsupported %s (no cr)", g_instruction);
}
}
#pragma endregion
#pragma region divw | divwu
else if(!qstrcmp(g_instruction, "divw") || !qstrcmp(g_instruction, "divwu")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s /= %s;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s / %s;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region eqv
else if(!qstrcmp(g_instruction, "eqv")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s ^= %s; // warning: possibly wrong", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s ^ %s; // warning: possibly wrong", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region lbz | lbzu
else if(!qstrcmp(g_instruction, "lbz") || !qstrcmp(g_instruction, "lbzu")) {
int fp = qstrlen(g_operand1) - qstrlen(qstrstr(g_operand1, "("));
qstrncpy(g_buffer, g_operand1 + fp + 1, BUFFER_SIZE);
g_buffer[qstrlen(g_buffer) - 1] = 0;
g_operand1[fp] = 0;
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = *(uint8_t*)(%s + %s);", g_operand0, g_buffer, g_operand1);
}
#pragma endregion
#pragma region lbzx
else if(!qstrcmp(g_instruction, "lbzx")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = *(uint8_t*)(%s + %s);", g_operand0, g_operand1, g_operand2);
}
#pragma endregion
#pragma region ld | ldu
else if(!qstrcmp(g_instruction, "ld") || !qstrcmp(g_instruction, "ldu")) {
int fp = qstrlen(g_operand1) - qstrlen(qstrstr(g_operand1, "("));
qstrncpy(g_buffer, g_operand1 + fp + 1, BUFFER_SIZE);
g_buffer[qstrlen(g_buffer) - 1] = 0;
g_operand1[fp] = 0;
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = *(uint64_t*)(%s + %s);", g_operand0, g_buffer, g_operand1);
}
#pragma endregion
#pragma region ldx
else if(!qstrcmp(g_instruction, "ldx")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = *(uint64_t*)(%s + %s);", g_operand0, g_operand1, g_operand2);
}
#pragma endregion
#pragma region lhz | lhzu
else if(!qstrcmp(g_instruction, "lhz") || !qstrcmp(g_instruction, "lhzu")) {
int fp = qstrlen(g_operand1) - qstrlen(qstrstr(g_operand1, "("));
qstrncpy(g_buffer, g_operand1 + fp + 1, BUFFER_SIZE);
g_buffer[qstrlen(g_buffer) - 1] = 0;
g_operand1[fp] = 0;
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = *(uint16_t*)(%s + %s);", g_operand0, g_buffer, g_operand1);
}
#pragma endregion
#pragma region lhzx
else if(!qstrcmp(g_instruction, "lhzx")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = *(uint16_t*)(%s + %s);", g_operand0, g_operand1, g_operand2);
}
#pragma endregion
#pragma region li
else if(!qstrcmp(g_instruction, "li")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s;", g_operand0, g_operand1);
}
#pragma endregion
#pragma region lis
else if(!qstrcmp(g_instruction, "lis")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s << 16;", g_operand0, g_operand1);
}
#pragma endregion
#pragma region lwz | lwzu
else if(!qstrcmp(g_instruction, "lwz") || !qstrcmp(g_instruction, "lwzu")) {
int fp = qstrlen(g_operand1) - qstrlen(qstrstr(g_operand1, "("));
qstrncpy(g_buffer, g_operand1 + fp + 1, BUFFER_SIZE);
g_buffer[qstrlen(g_buffer) - 1] = 0;
g_operand1[fp] = 0;
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = *(uint32_t*)(%s + %s);", g_operand0, g_buffer, g_operand1);
}
#pragma endregion
#pragma region lwzx
else if(!qstrcmp(g_instruction, "lwzx")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = *(uint32_t*)(%s + %s);", g_operand0, g_operand1, g_operand2);
}
#pragma endregion
#pragma region mtctr
else if(!qstrcmp(g_instruction, "mtctr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "CTR = %s;", g_operand1);
}
#pragma endregion
#pragma region mflr
else if(!qstrcmp(g_instruction, "mflr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = LR;", g_operand0);
}
#pragma endregion
#pragma region mtlr
else if(!qstrcmp(g_instruction, "mtlr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "LR = %s;", g_operand1);
}
#pragma endregion
#pragma region mfspr | mtspr
else if(!qstrcmp(g_instruction, "mfspr") || !qstrcmp(g_instruction, "mtspr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s; // spr", g_operand0, g_operand1);
}
#pragma endregion
#pragma region mr
else if(!qstrcmp(g_instruction, "mr")) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s;", g_operand0, g_operand1);
}
#pragma endregion
#pragma region mulld | mulli | mullw
else if(!qstrcmp(g_instruction, "mulld") || !qstrcmp(g_instruction, "mulli") || !qstrcmp(g_instruction, "mullw")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s *= %s;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s * %s;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region or | ori
else if(!qstrcmp(g_instruction, "or") || !qstrcmp(g_instruction, "ori")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s |= %s;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s | %s;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region oris
else if(!qstrcmp(g_instruction, "oris")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s |= %s << 16;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = (%s | %s) << 16;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region sld | sldi | slw | slwi
else if(!qstrcmp(g_instruction, "sld") || !qstrcmp(g_instruction, "sldi") || !qstrcmp(g_instruction, "slw") || !qstrcmp(g_instruction, "slwi")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s <<= %s;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s << %s;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region srd | srdi | srw | srwi
else if(!qstrcmp(g_instruction, "srd") || !qstrcmp(g_instruction, "srdi") || !qstrcmp(g_instruction, "srw") || !qstrcmp(g_instruction, "srwi")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s >>= %s;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s >> %s;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region stb | stbu
else if(!qstrcmp(g_instruction, "stb") || !qstrcmp(g_instruction, "stbu")) {
int fp = qstrlen(g_operand1) - qstrlen(qstrstr(g_operand1, "("));
qstrncpy(g_buffer, g_operand1 + fp + 1, BUFFER_SIZE);
g_buffer[qstrlen(g_buffer) - 1] = 0;
g_operand1[fp] = 0;
qsnprintf(g_pseudocode, BUFFER_SIZE, "*(uint8_t*)(%s + %s) = %s;", g_buffer, g_operand1, g_operand0);
}
#pragma endregion
#pragma region std | stdu
else if(!qstrcmp(g_instruction, "std") || !qstrcmp(g_instruction, "stdu")) {
int fp = qstrlen(g_operand1) - qstrlen(qstrstr(g_operand1, "("));
qstrncpy(g_buffer, g_operand1 + fp + 1, BUFFER_SIZE);
g_buffer[qstrlen(g_buffer) - 1] = 0;
g_operand1[fp] = 0;
qsnprintf(g_pseudocode, BUFFER_SIZE, "*(uint64_t*)(%s + %s) = %s;", g_buffer, g_operand1, g_operand0);
}
#pragma endregion
#pragma region sth | sthu
else if(!qstrcmp(g_instruction, "sth") || !qstrcmp(g_instruction, "sthu")) {
int fp = qstrlen(g_operand1) - qstrlen(qstrstr(g_operand1, "("));
qstrncpy(g_buffer, g_operand1 + fp + 1, BUFFER_SIZE);
g_buffer[qstrlen(g_buffer) - 1] = 0;
g_operand1[fp] = 0;
qsnprintf(g_pseudocode, BUFFER_SIZE, "*(uint16_t*)(%s + %s) = %s;", g_buffer, g_operand1, g_operand0);
}
#pragma endregion
#pragma region stw | stwu
else if(!qstrcmp(g_instruction, "stw") || !qstrcmp(g_instruction, "stwu")) {
int fp = qstrlen(g_operand1) - qstrlen(qstrstr(g_operand1, "("));
qstrncpy(g_buffer, g_operand1 + fp + 1, BUFFER_SIZE);
g_buffer[qstrlen(g_buffer) - 1] = 0;
g_operand1[fp] = 0;
qsnprintf(g_pseudocode, BUFFER_SIZE, "*(uint32_t*)(%s + %s) = %s;", g_buffer, g_operand1, g_operand0);
}
#pragma endregion
#pragma region subf | subfic | subi
else if(!qstrcmp(g_instruction, "subf") || !qstrcmp(g_instruction, "subfic") || !qstrcmp(g_instruction, "subi")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s -= %s;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s - %s;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region xor | xori
else if(!qstrcmp(g_instruction, "xor") || !qstrcmp(g_instruction, "xori")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s ^= %s;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = %s ^ %s;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region xoris
else if(!qstrcmp(g_instruction, "xoris")) {
if(!qstrcmp(g_operand0, g_operand1)) {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s ^= %s << 16;", g_operand0, g_operand2);
} else {
qsnprintf(g_pseudocode, BUFFER_SIZE, "%s = (%s ^ %s) << 16;", g_operand0, g_operand1, g_operand2);
}
}
#pragma endregion
#pragma region clrlwi
else if(!qstrcmp(g_instruction, "clrlwi")) {
// Clear left immediate
// clrlwi RA, RS, n
// (rlwinm RA, RS, 0, n, 31)
qstrncpy(g_RA, g_operand0, sizeof(g_RA));
qstrncpy(g_RS, g_operand1, sizeof(g_RS));
int n = atol(g_operand2);
g_SH = 0;
g_MB = n;
g_ME = 31;
iRotate_iMask32(g_pseudocode, BUFFER_SIZE, g_SH, g_MB, g_ME);
}
#pragma endregion
#pragma region clrrwi
else if(!qstrcmp(g_instruction, "clrrwi")) {
// Clear right immediate
// clrrwi RA, RS, n
// (rlwinm RA, RS, 0, 0, 31-n)
qstrncpy(g_RA, g_operand0, sizeof(g_RA));
qstrncpy(g_RS, g_operand1, sizeof(g_RS));
int n = atol(g_operand2);
g_SH = 0;
g_MB = 0;
g_ME = 31 - n;
iRotate_iMask32(g_pseudocode, BUFFER_SIZE, g_SH, g_MB, g_ME);
}
#pragma endregion
#pragma region clrslwi
else if(!qstrcmp(g_instruction, "clrslwi")) {
// Clear left and shift left immediate
// clrslwi RA, RS, b, n
// (rlwinm RA, RS, b-n, 31-n)
qstrncpy(g_RA, g_operand0, sizeof(g_RA));
qstrncpy(g_RS, g_operand1, sizeof(g_RS));
int b = atol(g_operand2);
int n = atol(g_operand3);
g_SH = n;
g_MB = 31;
g_ME = 31 - b;
iRotate_iMask32(g_pseudocode, BUFFER_SIZE, g_SH, g_MB, g_ME);
}
#pragma endregion
#pragma region extrwi
else if(!qstrcmp(g_instruction, "extrwi")) {
// Extract and right justify immediate
// extrwi RA, RS, n, b
// rlwinm RA, RS, b+n, 32-n, 31
qstrncpy(g_RA, g_operand0, sizeof(g_RA));
qstrncpy(g_RS, g_operand1, sizeof(g_RS));
int n = atol(g_operand2);
int b = atol(g_operand3);
g_SH = 32 - (b + n);
g_MB = 32 - n;
g_ME = 31;
iRotate_iMask32(g_pseudocode, BUFFER_SIZE, g_SH, g_MB, g_ME);
}
#pragma endregion
#pragma region extlwi
else if(!qstrcmp(g_instruction, "extlwi")) {
// Extract and left justify immediate
// extlwi RA, RS, n, b
// rlwinm RA, RS, b, 0, n-1
qstrncpy(g_RA, g_operand0, sizeof(g_RA));
qstrncpy(g_RS, g_operand1, sizeof(g_RS));
int n = atol(g_operand2);
int b = atol(g_operand3);
g_SH = b;
g_MB = 0;
g_ME = n - 1;
iRotate_iMask32(g_pseudocode, BUFFER_SIZE, g_SH, g_MB, g_ME);
}
#pragma endregion
#pragma region inslwi
else if(!qstrcmp(g_instruction, "inslwi")) {
// Insert from left immediate
// inslwi RA, RS, n, b
// rlwimi RA, RS, 32-b, b, (b+n)-1
qstrncpy(g_RA, g_operand0, sizeof(g_RA));
qstrncpy(g_RS, g_operand1, sizeof(g_RS));
int n = atol(g_operand2);
int b = atol(g_operand3);
g_SH = 32 - b;
g_MB = b;
g_ME = b + n - 1;
insert_iRotate_iMask32(g_pseudocode, BUFFER_SIZE, g_SH, g_MB, g_ME);
}
#pragma endregion
#pragma region insrwi
else if(!qstrcmp(g_instruction, "insrwi")) {
// Insert from right immediate
// insrwi RA, RS, n, b
// rlwimi RA, RS, 32-(b+n), b, (b+n)-1
qstrncpy(g_RA, g_operand0, sizeof(g_RA));
qstrncpy(g_RS, g_operand1, sizeof(g_RS));
int n = atol(g_operand2);
int b = atol(g_operand3);
g_SH = 32 - (b + n);
g_MB = b;
g_ME = b + n - 1;
insert_iRotate_iMask32(g_pseudocode, BUFFER_SIZE, g_SH, g_MB, g_ME);
}
#pragma endregion
#pragma region rlwinm
else if(!qstrcmp(g_instruction, "rlwinm")) {
// Rotate Left Word Immediate Then AND with Mask
// rlwinm RA, RS, SH, MB, ME
qstrncpy(g_RA, g_operand0, sizeof(g_RA));
qstrncpy(g_RS, g_operand1, sizeof(g_RS));
g_SH = atol(g_operand2);
g_MB = atol(g_operand3);
g_ME = atol(g_operand4);
iRotate_iMask32(g_pseudocode, BUFFER_SIZE, g_SH, g_MB, g_ME);
}
#pragma endregion
#pragma region rlwnm
else if(!qstrcmp(g_instruction, "rlwnm")) {
// Rotate Left Word Then AND with Mask
// rlwnm RA, RS, RB, MB, ME
qstrncpy(g_RA, g_operand0, sizeof(g_RA));
qstrncpy(g_RS, g_operand1, sizeof(g_RS));
qstrncpy(g_RB, g_operand2, sizeof(g_RB));
g_MB = atol(g_operand3);