joy0dat          unsigned short int in struct Custom
         +0x000a hardware/custom.h: *33
joy1dat          unsigned short int in struct Custom
         +0x000c hardware/custom.h: *34
joytest          unsigned short int in struct Custom
         +0x0036 hardware/custom.h: *54
jump             array [4] of unsigned short int in struct copinit
         +0x0064 graphics/copper.h: *101
JAM1             #define 0 = 0x00000000  graphics/rastport.h: *94
JAM2             #define 1 = 0x00000001  graphics/rastport.h: *95
JazzX            short int in struct Menu +0x0016 intuition/intuition.h: *72
JazzY            short int in struct Menu +0x0018 intuition/intuition.h: *72