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From: "ulyssesric at yahoo dot com dot tw" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/21834] Error when passing unsigned long long as function arguments Date: Tue, 31 May 2005 03:38:00 -0000 [thread overview] Message-ID: <20050531033555.20947.qmail@sourceware.org> (raw) In-Reply-To: <20050531001655.21834.ulyssesric@yahoo.com.tw> ------- Additional Comments From ulyssesric at yahoo dot com dot tw 2005-05-31 03:35 ------- Fine, I'll list all codes if you insist: #include <avr/io.h> typedef unsigned char byte_t; typedef unsigned long long qword_t; void uart_init(void) { // 115200 & 8N1 UBRR1H = 0x00; UBRR1L = 0x08; UCSR1A |= (0x01<<U2X1); UCSR1C = 0x06; UCSR1B &= ~0x04; UCSR1B |= ((0x01<<RXEN1) | (0x01<<TXEN1)); } void uart_putchar(byte_t octet) { UDR1 = octet; while (!(UCSR1A & (0x01<<UDRE1))); } void uart_write(byte_t *octet, uint8_t len) { while (len--) { UDR1 = *octet++; while (!(UCSR1A & (0x01<<UDRE1))); } } void foo( byte_t state, qword_t srcAddr, byte_t routeOptions, qword_t dstAddr ) { uart_putchar(state); uart_write((byte_t *)(&srcAddr),8); uart_putchar(routeOptions); uart_write((byte_t *)(&dstAddr),8); } void main(void) { uart_init(); foo(0x00,0x1234ll,0x01, 0x5678ll); while(1); } and the output is: D1, 34,12,D1,D1,D1,D1,D1,D1, 01, AB,CD,00,CF,00,80,00,78 in hexdecimal format. Obviously it's incorrect. If I change the code to: #include <avr/io.h> typedef unsigned char byte_t; typedef unsigned long long qword_t; void uart_init(void) { // 115200 & 8N1 UBRR1H = 0x00; UBRR1L = 0x08; UCSR1A |= (0x01<<U2X1); UCSR1C = 0x06; UCSR1B &= ~0x04; UCSR1B |= ((0x01<<RXEN1) | (0x01<<TXEN1)); } void uart_putchar(byte_t octet) { UDR1 = octet; while (!(UCSR1A & (0x01<<UDRE1))); } void uart_write(byte_t *octet, uint8_t len) { while (len--) { UDR1 = *octet++; while (!(UCSR1A & (0x01<<UDRE1))); } } void foo( qword_t srcAddr, qword_t dstAddr, byte_t state, byte_t routeOptions ) { uart_putchar(state); uart_write((byte_t *)(&srcAddr),8); uart_putchar(routeOptions); uart_write((byte_t *)(&dstAddr),8); } void main(void) { uart_init(); foo(0x1234ll,0x5678ll,0x00,0x01); while(1); } And the output will be: 00, 34,12,00,00,00,00,00,00, 01, 78,56,00,00,00,00,00,00 Compiling Procedure: avr-gcc -mmcu=atmega128 -g -Os -Wall -Wa,-adhlns=main.lst -std=gnu99 -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -ffreestanding -Wl,-Map=main.map -Wl,--cref main.c -o main.elf avr-objcopy -O ihex -R .eeprom test.elf test.hex avr-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O ihex test.elf test.eep avr-objdump -h -S test.elf > test.lss avr-nm -n test.elf > test.sym Programming with AVR Studio 4.11 build 401, JTAGICE mkII -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21834
next prev parent reply other threads:[~2005-05-31 3:35 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2005-05-31 1:22 [Bug c/21834] New: " ulyssesric at yahoo dot com dot tw 2005-05-31 3:35 ` [Bug target/21834] " pinskia at gcc dot gnu dot org 2005-05-31 3:38 ` ulyssesric at yahoo dot com dot tw [this message] 2005-05-31 3:41 ` ulyssesric at yahoo dot com dot tw 2005-06-19 14:02 ` pinskia at gcc dot gnu dot org [not found] <bug-21834-10737@http.gcc.gnu.org/bugzilla/> 2007-05-30 20:29 ` eweddington at cso dot atmel dot com
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