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Add status register bits.

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Radosław Kujawa 2017-01-19 14:06:19 +01:00
parent 8d3f7266fb
commit f42f88c148
1 changed files with 9 additions and 0 deletions
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9
src/rk65c02.h
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@ -19,6 +19,15 @@ struct reg_state {
uint8_t P; /* status */ uint8_t P; /* status */
}; };
#define P_CARRY 0x1
#define P_ZERO 0x2
#define P_IRQ_DISABLE 0x4
#define P_DECIMAL 0x8
#define P_BREAK 0x10
#define P_UNDEFINED 0x20
#define P_SIGN_OVERFLOW 0x40
#define P_NEGATIVE 0x80
typedef struct reg_state reg_state_t; typedef struct reg_state reg_state_t;
struct rk65c02emu { struct rk65c02emu {