Very URGENT Please help.

Convert C code to Assembly using x86 - 64. Please do not use built in -asm in gcc. Thank you!

// thermo_update.c: functions that read the thermometer temperature // sensor, convert its value to degrees Celsius or Fahrenheit, and // adjusts the display to show the temperature.

#include "thermo.h" #include // for debugging

#define MAX_SENSOR_VAL 64*10*100 // Max expected value in sensor value #define MIN_CELSIUS -500 // min/max values for celsius in tenths degrees #define MAX_CELSIUS +500 #define MIN_FAHRENHEIT -580 // min/max values for fahrenheit in tenths degrees #define MAX_FAHRENHEIT +1220

// Uses the two global variables (ports) THERMO_SENSOR_PORT and // THERMO_STATUS_PORT to set the temp structure. If THERMO_SENSOR_PORT // is above its maximum trusted value, associated with +50.0 deg C, // does not alter temp and returns 1. Otherwise, sets fields of temp // based on converting sensor value to degrees and checking whether // Celsius or Fahrenheit display is in effect. Returns 0 on successful // set. This function DOES NOT modify any global variables but may // access global variables. int set_temp_from_ports(temp_t *temp){ if(THERMO_SENSOR_PORT > MAX_SENSOR_VAL){ // error checking return 1; } short ctemp = THERMO_SENSOR_PORT / 64 - 500; short crem = THERMO_SENSOR_PORT % 64; if(crem >= 32){ ctemp += 1; // round up }

if(!(THERMO_STATUS_PORT & 0b00000001)){ // celsius or fahrenheit? temp->is_fahrenheit = 0; // celsius temp->tenths_degrees = ctemp; } else{ // convert to fahrenheit temp->is_fahrenheit = 1; // int ftemp = ((int)THERMO_SENSOR_PORT * 9) / 5 / 64 + 320 - 500; // broken short ftemp = (ctemp * 9) / 5 + 320; // short frem = (THERMO_SENSOR_PORT * 9) % 5; // if(frem > 2){ // round up for positive // ftemp += 1; // } // else if(frem < -2){ // round down for negative // ftemp -= 1; // } temp->tenths_degrees = ftemp; } return 0; }

int digit_masks[10] = { // bit masks representing each of the valid digits 0b0111111, // zero 0b0000110, // one 0b1011011, // two 0b1001111, // three 0b1100110, // four 0b1101101, // five 0b1111101, // six 0b0000111, // seven 0b1111111, // eight 0b1101111, // nine };

#define BLANK 0b0000000 // blank #define NEGATIVE 0b1000000 // negative sign #define NEGATIVE 0b1000000 // negative sign #define CEL_MASK (0x1 << 28) // position of deg C bit #define FAH_MASK (0x1 << 29) // position of deg F bit

// Alters the bits of integer pointed to by display to reflect the // temperature in struct arg temp. If temp has a temperature value // that is below minimum or above maximum temperature allowable or if // an improper indication of celsius/fahrenheit is given, does nothing // and returns 1. Otherwise, calculates each digit of the temperature // and changes bits at display to show the temperature according to // the pattern for each digit. This function DOES NOT modify any // global variables but may access global variables. int set_display_from_temp(temp_t temp, int *display){ if( (temp.is_fahrenheit==0 && (temp.tenths_degrees < MIN_CELSIUS || temp.tenths_degrees > MAX_CELSIUS)) || (temp.is_fahrenheit==1 && (temp.tenths_degrees < MIN_FAHRENHEIT || temp.tenths_degrees > MAX_FAHRENHEIT)) || (temp.is_fahrenheit!=0 && temp.is_fahrenheit!=1)) { return 1; // error conditions }

int disp = 0; // transfer this to the display int quo = temp.tenths_degrees; // initialize with temp, use in repeated division

if(quo < 0){ // check for negative disp |= NEGATIVE; // add negative sign disp = disp << 7; // shift quo = -quo; // negate quotient so remaining values are all positive }

// CALCULATE EACH DIGIT int tenths = quo % 10; // tenths place quo = quo / 10; int ones = quo % 10; // ones place quo = quo / 10; int tens = quo % 10; // tens place quo = quo / 10; int hundreds = quo % 10; // hundreds place

// CREATE THE DISPLAY if(hundreds != 0){ // blank for hundreds? disp |= digit_masks[hundreds]; // nope disp = disp << 7; } if(hundreds !=0 || tens != 0){ // blank for tens? disp |= digit_masks[tens]; // nope disp = disp << 7; } disp |= digit_masks[ones]; // ones digit always there disp = disp << 7; disp |= digit_masks[tenths]; // thens digit always there // no shift for tenths digit

if(temp.is_fahrenheit){ // set bits associated C/F disp |= FAH_MASK; } else{ disp |= CEL_MASK; } *display = disp; // deref-set the pointed to integer return 0; }

// Called to update the thermometer display. Makes use of // set_temp_from_ports() and set_display_from_temp() to access // temperature sensor then set the display. Checks these functions and // if they indicate an error, makes not changes to the display. // Otherwise modifies THERMO_DISPLAY_PORT to set the display. // // CONSTRAINT: Does not allocate any heap memory as malloc() is NOT // available on the target microcontroller. Uses stack and global // memory only. int thermo_update(){ temp_t temp = {}; int ret; ret = set_temp_from_ports(&temp); if(ret!=0){ return 1; } int disp = 0; ret = set_display_from_temp(temp,&disp); if(ret != 0){ return 1; } THERMO_DISPLAY_PORT = disp; return 0; }