problem with read_xram

[WojciechGw]

Hello :)

read_xram doesn't work for me

my case

"screen.bmp" 640x480 1bpp image
BMP header 0x3E bytes + 0x9600 of image data
located in active folder on drive 0:

int fd = open("screen.bmp", O_RDONLY);
uint16_t result;
if(fd != -1){
    result = read_xram(0x9600,0x3E,fd);      // BMP header save after screen buffer
    printf("BMP header loaded at   0x9600 %4X bytes\n",result);
    result = read_xram(0x0000,0x4B00,fd);
    printf("BMP 1st half loaded at 0x0000 %4X bytes\n",result);
    result = read_xram(0x4B00,0x4B00,fd);
    printf("BMP 2st half loaded at 0x4B00 %4X bytes\n",result);
} else {
    printf("ERROR\n");
}
close(fd);

compilation - no errors, warnings
results - ok raport 0x3E bytes then 0x4B00 bytes and then 0x4B00 bytes
but there are no loaded data to xram

same data (without BMP header) compiled and linked as an asset to main .rp6502 file
in proper place in xram without any problems
write_xram works without any problems (use for screenshots)

some ideas ?

firmware 0.12

[rumbledethumps]

Already fixed for the next release. Fallout from the significant work to get modem working.
picocomputer/rp6502@76d99c1

[WojciechGw]

thank you :)