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- ## Copyright (C) 2016 Jeremiah Orians
- ## This file is part of stage0.
- ##
- ## stage0 is free software: you can redistribute it and/or modify
- ## it under the terms of the GNU General Public License as published by
- ## the Free Software Foundation, either version 3 of the License, or
- ## (at your option) any later version.
- ##
- ## stage0 is distributed in the hope that it will be useful,
- ## but WITHOUT ANY WARRANTY; without even the implied warranty of
- ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ## GNU General Public License for more details.
- ##
- ## You should have received a copy of the GNU General Public License
- ## along with stage0. If not, see <http://www.gnu.org/licenses/>.
- # M2-Planet standards
- DEFINE NULL 00000000
- # Registers
- DEFINE R0 0
- DEFINE R1 1
- DEFINE R2 2
- DEFINE R3 3
- DEFINE R4 4
- DEFINE R5 5
- DEFINE R6 6
- DEFINE R7 7
- DEFINE R8 8
- DEFINE R9 9
- DEFINE R10 A
- DEFINE R11 B
- DEFINE R12 C
- DEFINE BP C
- DEFINE R13 D
- DEFINE SP D
- DEFINE R14 E
- DEFINE LR E
- DEFINE R15 F
- DEFINE PC F
- # Register masks for push/pop16
- DEFINE {R0} 0100
- DEFINE {R1} 0200
- DEFINE {R2} 0400
- DEFINE {R3} 0800
- DEFINE {R4} 1000
- DEFINE {R11} 0008
- DEFINE {BP} 0010
- DEFINE {LR} 0040
- # Bitshift constants
- DEFINE NO_SHIFT 0
- DEFINE LEFT 1
- DEFINE RIGHT 3
- DEFINE ARITH_RIGHT 5
- # LOAD/STORE
- DEFINE MEMORY E5
- DEFINE STORE32 08
- DEFINE STORE8 0C
- DEFINE LOAD32 09
- DEFINE LOAD8 0D
- DEFINE LOADI8_ALWAYS 0A0E3
- DEFINE LOADI8_G 0A0C3
- DEFINE LOADI8_GE 0A0A3
- DEFINE LOADI8_EQUAL 0A003
- DEFINE LOADI8_NE 0A013
- DEFINE LOADI8_LE 0A0D3
- DEFINE LOADI8_L 0A0B3
- DEFINE LOADI8_HI 0A083
- DEFINE LOADI8_HS 0A023
- DEFINE LOADI8_LS 0A093
- DEFINE LOADI8_LO 0A033
- # JUMP/BRANCH
- DEFINE JUMP_ALWAYS EA
- DEFINE JUMP_EQUAL 0A
- DEFINE JUMP_NE 1A
- DEFINE CALL_ALWAYS EB
- DEFINE CALL_REG_ALWAYS FF2FE1
- DEFINE RETURN FF2FE1
- # Data movement
- DEFINE MOVE_ALWAYS A0E1
- DEFINE MVN_ALWAYS 0E0E1
- DEFINE MVN_LT 0E0B1
- DEFINE MVNI8_EQUAL 0E003
- DEFINE PUSH_ALWAYS 2DE9
- DEFINE POP_ALWAYS BDE8
- # Arithmetic/logic
- DEFINE AUX_ALWAYS E1
- DEFINE IMM_ALWAYS E3
- DEFINE ARITH_ALWAYS E2
- DEFINE ARITH_GE A2
- DEFINE ARITH_LT B2
- DEFINE ARITH_NE 12
- DEFINE ARITH2_ALWAYS E0
- DEFINE ARITH2_GE A0
- DEFINE ADC 0A
- DEFINE ADCS 0B
- DEFINE ADD 08
- DEFINE ADDS 09
- DEFINE AND 00
- DEFINE CMP 005
- DEFINE CMPI8 005
- DEFINE MUL 0
- DEFINE MULS 1
- DEFINE OR 08
- DEFINE SHIFT A0
- DEFINE SUB 04
- DEFINE RSUB 06
- DEFINE XOR 02
- # SYSCALL
- DEFINE SYSCALL_ALWAYS 000000EF
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