ref: a3d88366716a0c5115a54296d93fb6ee650fd08e
dir: /include/asm/localasm.h/
/* * This file is part of RGBDS. * * Copyright (c) 1997-2018, Carsten Sorensen and RGBDS contributors. * * SPDX-License-Identifier: MIT */ #ifndef RGBDS_ASM_LOCALASM_H #define RGBDS_ASM_LOCALASM_H /* * GB Z80 instruction groups * * n3 = 3-bit * n = 8-bit * nn = 16-bit * * ADC A,n : 0xCE * ADC A,r : 0x88|r * ADD A,n : 0xC6 * ADD A,r : 0x80|r * ADD HL,ss : 0x09|(ss<<4) * ADD SP,n : 0xE8 * AND A,n : 0xE6 * AND A,r : 0xA0|r * BIT n3,r : 0xCB 0x40|(n3<<3)|r * CALL cc,nn : 0xC4|(cc<<3) * CALL nn : 0xCD * CCF : 0x3F * CP A,n : 0xFE * CP A,r : 0xB8|r * CPL : 0x2F * DAA : 0x27 * DEC r : 0x05|(r<<3) * DEC ss : 0x0B|(ss<<4) * DI : 0xF3 * EI : 0xFB * HALT : 0x76 * INC r : 0x04|(r<<3) * INC ss : 0x03|(ss<<4) * JP HL : 0xE9 * JP cc,nn : 0xC2|(cc<<3) * JP nn : 0xC3|(cc<<3) * JR n : 0x18 * JR cc,n : 0x20|(cc<<3) * LD (nn),SP : 0x08 * LD ($FF00+C),A : 0xE2 * LD ($FF00+n),A : 0xE0 * LD (nn),A : 0xEA * LD (rr),A : 0x02|(rr<<4) // HL+ and HL- included * LD A,($FF00+C) : 0xF2 * LD A,($FF00+n) : 0xF0 * LD A,(nn) : 0xFA * LD A,(rr) : 0x0A|(rr<<4) // HL+ and HL- included * LD HL,SP+n : 0xF8 * LD SP,HL : 0xF9 * LD r,n : 0x06|(r<<3) * LD r,r' : 0x40|(r<<3)|r' // NOTE: LD (HL),(HL) not allowed * LD ss,nn : 0x01|(ss<<4) * NOP : 0x00 * OR A,n : 0xF6 * OR A,r : 0xB0|r * POP tt : 0xC1|(tt<<4) * PUSH tt : 0xC5|(tt<<4) * RES n3,r : 0xCB 0x80|(n3<<3)|r * RET : 0xC9 * RET cc : 0xC0|(cc<<3) * RETI : 0xD9 * RL r : 0xCB 0x10|r * RLA : 0x17 * RLC r : 0xCB 0x00|r * RLCA : 0x07 * RR r : 0xCB 0x18|r * RRA : 0x1F * RRC r : 0xCB 0x08|r * RRCA : 0x0F * RST n : 0xC7|n * SBC A,n : 0xDE * SBC A,r : 0x98|r * SCF : 0x37 * SET n3,r : 0xCB 0xC0|(n8<<3)|r * SLA r : 0xCB 0x20|r * SRA r : 0xCB 0x28|r * SRL r : 0xCB 0x38|r * STOP : 0x10 0x00 * SUB A,n : 0xD6 * SUB A,r : 0x90|r * SWAP r : 0xCB 0x30|r * XOR A,n : 0xEE * XOR A,r : 0xA8|r */ /* "r" defs */ enum { REG_B = 0, REG_C, REG_D, REG_E, REG_H, REG_L, REG_HL_IND, REG_A }; /* "rr" defs */ enum { REG_BC_IND = 0, REG_DE_IND, REG_HL_INDINC, REG_HL_INDDEC, }; /* "ss" defs (SP) and "tt" defs (AF) */ enum { REG_BC = 0, REG_DE = 1, REG_HL = 2, REG_SP = 3, REG_AF = 3 }; /* "cc" defs */ enum { CC_NZ = 0, CC_Z, CC_NC, CC_C }; #endif /* RGBDS_ASM_LOCALASM_H */