shithub: scc

ref: 4ec73213a7ed78026a99ce4d4890529340b84839
dir: /as/target/x80/proc.h/

enum args {
	AREG_AF = AMAX,
	AREG_A,
	AREG_F,

	AREG_BC,
	AREG_B,
	AREG_C,

	AREG_HL,
	AREG_H,
	AREG_L,

	AREG_DE,
	AREG_D,
	AREG_E,

	AREG_IX,
	AREG_IXL,
	AREG_IXH,

	AREG_IY,
	AREG_IYL,
	AREG_IYH,

	AREG_R,
	AREG_I,
	AREG_AF_,

	AREG_RCLASS,  /* register class for B, C, D, E, H, L and A */
	AREG_PCLASS,  /* register class for B, C, D, E, IXH, IXL and A */
	AREG_QCLASS,  /* register class for B, C, D, E, IYH, IYL and A */

	AINDER_HL,    /* (HL) */
};

extern int rclass(int reg);
extern int pclass(int reg);
extern int qclass(int reg);