HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 401

• Manufacturer Part Number: HD64F38024DV
• Description: IC H8/SLP MCU FLASH 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of HD64F38024DV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: LCD, PWM, WDT
• Number Of I /o: 51
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

int ovfnegc(char dst,char *rst)
int ovfnegw(int dst,int *rst)
int ovfnegl(long dst,long *rst)
Description:
Header:
Return value:
Parameters:
Example:
The functions ovfnegc, ovfnegw, and ovfnegl calculate 2's complements of
1-byte, 2-byte, and 4-byte data dst, respectively, store the results to the area
specified by rst only when rst is not 0, and return 0 when the results do not
overflow or a value other than 0 when they do overflow.
These functions can be used only in the conditional statements such as if, do,
while, and for statements.
The ovfnegw and ovfnegl functions are valid when the CPU is other than
H8/300.
<machine.h>
When the result overflows
When the results does not overflow
dst
rst
#include <machine.h>
int dst,rst;
void f(void)
{
}
if(ovfnegw(dst,&rst))
dst=0;
Operand of 2's complement calculation
Result storage area (The result is not stored if rst value is 0)
/* Sets the result of dst in
/* rst and branches depending
/* on the borrow of the
/* result of -dst
/* Must include <machine.h>
A value other than 0
0
387
*/
*/
*/
*/
*/