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Created attachment 278161 [details] Debug Mode Register Value Should Be Positive #include "stdio.h" #include "string.h" #include "stdint.h" /* I created the following register using unsigned 8-bit type data (uint8_t): */ union{ volatile uint8_t flagRegister; struct { volatile uint8_t firstFlag : 1; // Bit 0 1 volatile uint8_t secondFlag : 1; // Bit 1 0 volatile uint8_t thirdFlag : 1; // Bit 2 1 volatile uint8_t fourthtFlag : 1; // Bit 3 0 volatile uint8_t statusFlag : 4; // Bits 4 - 7 }bits; }fullRegister; In main I initialize each bit like this: /* Initialize register to zero values */ fullRegister.flagRegister = 0x00; /* Set a few bits within the register: */ fullRegister.bits.firstFlag = 1; fullRegister.bits.secondFlag = 0; fullRegister.bits.thirdFlag = 1; fullRegister.bits.fourthtFlag = 0; fullRegister.bits.statusFlag = 0xf; /* Print out the expected register values: */ printf("\nThe value of the statusFlag is: %d", fullRegister.bits.statusFlag); printf("\nThe value of the flagRegister is: %d\n\n", fullRegister.flagRegister); When I go to the debug window by passing the mouse pointer over the 'fullRegister.flagRegister' variable, it gives 'Decimal' as a negative eleven (-11) value. It should be 245 since it is an unsigned 8-bit data type variable register. Note that 'Default' and 'Details' right above do display the correct value of 245. -- Configuration Details -- Product: Eclipse IDE 4.11.0.20190314-1200 (org.eclipse.epp.package.cpp.product)Installed Features: org.eclipse.platform 4.11.0.v20190307-0500
Additional observations: 1. What is the purpose of the 'Details' and the 'Default' items. They seem to be redundant/useless as the needed information is already given in the form of Decimal/HEX/Ocal/Binary. 2. When highlighting the flagRegister variable in the debug window for example, why is there an alphanumeric 'o' to the right of the value (in this case of 245, i.e., 245 'o'). This happens for other values as well. For example, for the value of 128, there is a an capital epsilon that kind of looks like the euro symbol. 3. For a bit value of say 1, as in flagRegister.firstFlag = 1; in the debug window it shows it as 1 '\001'. The extra '\001' appears to be not needed. For the value highlighted you only needed the value of interest. In this case a value of 1 (only). 4. Within a debug window, it would be nice to have the option of being able to add additional columns for the case when wanting to be able to observe variables with different number systems alongside each other. Variables that are better served viewing in the decimal system (after a calculation) and others in the HEX/binary (changing bit fields/flags) system alongside each other. However, this can only be done by being able to add addition columns (or having the capability of selecting the row view format). Just a few observation and suggestions.
