2 // RMAC - Renamed Macro Assembler for all Atari computers
3 // RISCA.H - GPU/DSP Assembler
4 // Copyright (C) 199x Landon Dyer, 2011-2021 Reboot and Friends
5 // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986
6 // Source utilised with the kind permission of Landon Dyer
14 // RISC Instruction Types
15 #define RI_NONE 0x0000 // No Operands - NOP
16 #define RI_ONE 0x0001 // One Operand - Rd - ABS/NEG/etc
17 #define RI_TWO 0x0002 // Two Operands - Rs,Rd - Most Instructions
18 #define RI_NUM_15 0x0003 // Numeric Operand - n,Rd - n=-16..+15 - CMPQ
19 #define RI_NUM_31 0x0004 // Numeric Operand - n,Rd - n=0..31 - BCLR/BSET/BTST/MOVEQ
20 #define RI_NUM_32 0x0005 // Numeric Operand - n,Rd - n=1..32 - ADDQ/SUBQ
21 #define RI_JR 0x0006 // Jump Relative - cc,n - n=-16..+15 words, reg2=cc
22 #define RI_JUMP 0x0007 // Jump Absolute - cc,(Rs) - reg2=cc
23 #define RI_MOVEI 0x0008 // Move Immediate - n,Rn - n in second word
24 #define RI_MOVE 0x0009 // MOVE Instruction - PC,Rn / Rn,Rn
25 #define RI_LOAD 0x000A // LOAD Instruction - Various Forms
26 #define RI_LOADN 0x000B // LOADB/LOADP/LOADW - (Rs),Rd
27 #define RI_STORE 0x000C // STORE Instruction - Various Forms
28 #define RI_STOREN 0x000D // STOREB/STOREP/STOREM - Rs,(Rd)
30 // Supplementry Instruction Flags
31 #define SUB32 0x2000 // (n = 32-n)
32 #define GPUONLY 0x4000 // Opcode is for the GPU Only
33 #define DSPONLY 0x8000 // Opcode is for the DSP Only
35 #define CHECK_COMMA if (*tok++ != ',') { return error(comma_error); }
37 // Globals, externals etc
38 extern unsigned orgactive;
39 extern unsigned orgaddr;
40 extern unsigned orgwarning;
41 extern unsigned altbankok;
42 extern uint8_t riscImmTokenSeen;
45 int GenerateRISCCode(int);
47 #endif // __RISCASM_H__