Bert Lange

Is there a description for the numbers of cyclomatic? I got this numbers for example: main.c:183: info 121: function 'main', # edges 181 , # nodes 129 , cyclomatic complexity 54 main.c:740: info 121: function 'timer_isr', # edges 1 , # nodes 2 , cyclomatic complexity 1 main.c:754: info 121: function 'rom_off', # edges 1 , # nodes 2 , cyclomatic complexity 1 main.c:761: info 121: function 'rom_on', # edges 1 , # nodes 2 , cyclomatic complexity 1

Just test it (I added a volatile): void main(void) { volatile int a = 116; a = a / 16; // This should equal "a >> 4" volatile int b = 73; b = b % 64; // This should equal "b & 63" } Compile for Z80: sdcc -mz80 -Wall -S test.c -o test.asm Check assembler result for a: ;test.c:7: volatile int a = 116; ld hl, #0x0074 ex (sp), hl ;test.c:8: a = a / 16; // This should equal "a >> 4" pop de push de bit 7, d jr Z, 00103$ ld hl, #0x000f add hl, de ex de, hl 00103$: inc sp inc sp push de ld iy, #0 add iy,...

Hi folks! I wish to access global symbols from my main: void main( void) { extern uint16_t l__GSINIT; printf( "gsinit: %04X\n", l__GSINIT); } But at linker stage I got an error: sdldz80 -n -mwx -m1 -u -b _CODE=0x200 -l stuff.lib -l printf.lib -i build/stuff.ihx build/crt0.rel build/stuff.rel ?ASlink-Warning-Undefined Global '_l__GSINIT' referenced by module 'main' The compiler(?) will add an underscore, because in the map file I can find the symbol: ASxxxx Linker V03.00/V05.40 + sdld, page 1. Hexadecimal...

Ok, thanks Benedikt. This will do: uint16_t val; // need to be global (or use static and find the internal name) void main( void) { __asm ld hl, #(l__GSINIT) ld (_val), hl __endasm; printf( "l_gsinit: %04X\n", val); } regards, Bert

Hi folks! I wish to access global symbols from my main: void main( void) { extern uint16_t l__GSINIT; printf( "gsinit: %04X\n", l__GSINIT); } But at linker stage I got an error: sdldz80 -n -mwx -m1 -u -b _CODE=0x200 -l stuff.lib -l printf.lib -i build/stuff.ihx build/crt0.rel build/stuff.rel ?ASlink-Warning-Undefined Global '_l__GSINIT' referenced by module 'main' The compiler(?) will add an underscore, because in the map file I can find the symbol: ASxxxx Linker V03.00/V05.40 + sdld, page 1. Hexadecimal...

Hi folks! I need to rewrite my Z80 library to the new calling convention. In the following function the simple 'ret' doesnt work anymore: extern void colorup( unsigned char argn, unsigned char foreground, unsigned char background); .globl _colorup _colorup:: ; bring parameters to correct mem/registers ld (#ARGN), a push hl ; save L ld hl, #6 add hl, sp ld e, (hl) pop hl ; retore L call PV1 ; system call .db FNCOLORUP ret Now it is necessary to change the 'ret' to this code pop hl inc sp jp (hl) to...

Great, it works! Thank you!

Ok, with myprintf( "%x %x %x", (char)a, (char)b, (char)c); variant 1 works. And also the workaround with c = va_arg( arg, unsigned); does help. But my second compile with the compile option '--fomit-frame-pointer' is still completly garbled up. Can anyone give a hint in which sdcc source files a can search for the problem? thanks & regards, Bert