1 .text 2 3 stuff: 4 .ent stuff 5 .set push 6 .set noreorder 7 .set noat 8 9 add $0, $0, $31 10 add $1, $10, $3 11 add $31, $31, $0 12 13 addi $31, $0, 0 14 addi $1, $10, 3 15 addi $0, $31, -1 16 17 addiu $31, $0, 0 18 addiu $1, $10, 3 19 addiu $31, $0, 0xFFFF 20 21 and $0, $0, $31 22 and $1, $10, $3 23 and $31, $31, $0 24 25 andi $31, $0, 0 26 andi $1, $10, 3 27 andi $0, $31, 0xFFFF 28 29 nop 30 31 # The c.lt.s instruction of R5900 has the same opcode as c.olt.s of MIPS I. 32 c.lt.s $f0, $f31 33 c.lt.s $f31, $f0 34 35 # The c.le.s instruction of R5900 has the same opcode as c.ole.s of MIPS I. 36 c.le.s $f0, $f31 37 c.le.s $f31, $f0 38 39 c.eq.s $f0, $f31 40 c.eq.s $f31, $f0 41 42 c.f.s $f0, $f31 43 c.f.s $f31, $f0 44 45 # The cvt.w.s instruction of the R5900 does the same as trunc.w.s in MIPS I. 46 # The cvt.w.s instruction of MIPS I doesn't exist in the R5900 CPU. 47 # For compatibilty the instruction trunc.w.s uses the opcode of cvt.w.s. 48 # cvt.w.s should not be used on R5900. 49 trunc.w.s $f0, $f31 50 trunc.w.s $f31, $f0 51 52 # 128 bit store instruction. 53 sq $0, 0($0) 54 sq $1, 0x7fff($1) 55 sq $8, -0x8000($8) 56 sq $31, -1($31) 57 58 # 128 bit load instruction. 59 lq $0, 0($0) 60 lq $1, 0x7fff($1) 61 lq $8, -0x8000($8) 62 lq $31, -1($31) 63 64 # Prefetch cache 65 pref 0, 0($0) 66 pref 1, 0x7fff($1) 67 pref 8, -0x8000($8) 68 pref 31, -1($31) 69 70 # Preformance counter registers 71 mfpc $31, 0 72 mfpc $0, 1 73 mfps $0, 0 74 mfps $31, 0 75 mtpc $31, 0 76 mtpc $0, 1 77 mtps $0, 0 78 mtps $31, 0 79 80 # Pipeline1 81 mfhi1 $0 82 mfhi1 $31 83 mthi1 $0 84 mthi1 $31 85 mflo1 $0 86 mflo1 $31 87 mtlo1 $0 88 mtlo1 $31 89 90 movn $0, $0, $31 91 movn $31, $31, $0 92 movz $0, $0, $31 93 movz $31, $31, $0 94 95 # Parallel instructions operating on 128 bit registers: 96 pcpyld $0, $0, $31 97 pcpyld $31, $31, $0 98 pextlh $0, $0, $31 99 pextlh $31, $31, $0 100 pextlw $0, $0, $31 101 pextlw $31, $31, $0 102 103 # G1 instructions 104 mult $0, $0, $31 105 mult $31, $31, $0 106 multu $0, $0, $31 107 multu $31, $31, $0 108 mul $0, $0, $31 109 mul $31, $31, $0 110 madd $0, $0, $31 111 madd $31, $31, $0 112 madd $0, $31 113 madd $31, $0 114 maddu $0, $0, $31 115 maddu $31, $31, $0 116 maddu $0, $31 117 maddu $31, $0 118 sync 119 120 .set pop 121 .set push 122 .set reorder 123 # Short loop fix. 124 li $3, 300 125 short_loop1: 126 addi $3, -1 127 addi $4, -1 128 # NOP should be inserted in branch delay. 129 bne $3, $0, short_loop1 130 131 li $4, 3 132 .set pop 133 134 .space 8 135 .end stuff 136
