diff options
Diffstat (limited to 'target/sparc/insns.decode')
| -rw-r--r-- | target/sparc/insns.decode | 83 |
1 files changed, 53 insertions, 30 deletions
diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode index 9e39d23273..242ec42016 100644 --- a/target/sparc/insns.decode +++ b/target/sparc/insns.decode @@ -88,9 +88,10 @@ CALL 01 i:s30 { [ - STBAR 10 00000 101000 01111 0 0000000000000 + STBAR_v9 10 00000 101000 01111 0 0000000000000 MEMBAR 10 00000 101000 01111 1 000000 cmask:3 mmask:4 + RDY_v9 10 rd:5 101000 00000 0 0000000000000 RDCCR 10 rd:5 101000 00010 0 0000000000000 RDASI 10 rd:5 101000 00011 0 0000000000000 RDTICK 10 rd:5 101000 00100 0 0000000000000 @@ -107,8 +108,26 @@ CALL 01 i:s30 RDSTICK_CMPR 10 rd:5 101000 11001 0 0000000000000 RDSTRAND_STATUS 10 rd:5 101000 11010 0 0000000000000 ] - # Before v8, all rs1 accepted; otherwise rs1==0. - RDY 10 rd:5 101000 rs1:5 0 0000000000000 + + # The v8 manual, section B.30 STBAR instruction, says + # bits [12:0] are ignored, but bit 13 must be 0. + # However, section B.28 Read State Register Instruction has a + # comment that RDASR with rs1 = 15, rd = 0 is STBAR. Here, + # bit 13 is also ignored and rd != 0 is merely reserved. + # + # Solaris 8 executes v9 MEMBAR instruction 0x8143e008 during boot. + # This confirms that bit 13 is ignored, as 0x8143c000 is STBAR. + STBAR_v8 10 ----- 101000 01111 - ------------- + + # For v7, bits [18:0] are ignored. + # For v8, bits [18:14], aka rs1, are repurposed and rs1 = 0 is RDY, + # and other values are RDASR. However, the v8 manual explicitly + # says that rs1 in 1..14 yield undefined results and do not cause + # an illegal instruction trap, and rs1 in 16..31 are available for + # implementation specific usage. + # Implement not causing an illegal instruction trap for v8 by + # continuing to interpret unused values per v7, i.e. as RDY. + RDY_v7 10 rd:5 101000 ----- - ------------- } { @@ -139,14 +158,16 @@ CALL 01 i:s30 } { - RDPSR 10 rd:5 101001 00000 0 0000000000000 - RDHPR_hpstate 10 rd:5 101001 00000 0 0000000000000 + [ + RDHPR_hpstate 10 rd:5 101001 00000 0 0000000000000 + RDHPR_htstate 10 rd:5 101001 00001 0 0000000000000 + RDHPR_hintp 10 rd:5 101001 00011 0 0000000000000 + RDHPR_htba 10 rd:5 101001 00101 0 0000000000000 + RDHPR_hver 10 rd:5 101001 00110 0 0000000000000 + RDHPR_hstick_cmpr 10 rd:5 101001 11111 0 0000000000000 + ] + RDPSR 10 rd:5 101001 ----- - ------------- } -RDHPR_htstate 10 rd:5 101001 00001 0 0000000000000 -RDHPR_hintp 10 rd:5 101001 00011 0 0000000000000 -RDHPR_htba 10 rd:5 101001 00101 0 0000000000000 -RDHPR_hver 10 rd:5 101001 00110 0 0000000000000 -RDHPR_hstick_cmpr 10 rd:5 101001 11111 0 0000000000000 { WRPSR 10 00000 110001 ..... . ............. @n_r_ri @@ -159,26 +180,28 @@ RESTORED 10 00001 110001 00000 0 0000000000000 # UA2005 INVALW { - RDWIM 10 rd:5 101010 00000 0 0000000000000 - RDPR_tpc 10 rd:5 101010 00000 0 0000000000000 + [ + RDPR_tpc 10 rd:5 101010 00000 0 0000000000000 + RDPR_tnpc 10 rd:5 101010 00001 0 0000000000000 + RDPR_tstate 10 rd:5 101010 00010 0 0000000000000 + RDPR_tt 10 rd:5 101010 00011 0 0000000000000 + RDPR_tick 10 rd:5 101010 00100 0 0000000000000 + RDPR_tba 10 rd:5 101010 00101 0 0000000000000 + RDPR_pstate 10 rd:5 101010 00110 0 0000000000000 + RDPR_tl 10 rd:5 101010 00111 0 0000000000000 + RDPR_pil 10 rd:5 101010 01000 0 0000000000000 + RDPR_cwp 10 rd:5 101010 01001 0 0000000000000 + RDPR_cansave 10 rd:5 101010 01010 0 0000000000000 + RDPR_canrestore 10 rd:5 101010 01011 0 0000000000000 + RDPR_cleanwin 10 rd:5 101010 01100 0 0000000000000 + RDPR_otherwin 10 rd:5 101010 01101 0 0000000000000 + RDPR_wstate 10 rd:5 101010 01110 0 0000000000000 + RDPR_gl 10 rd:5 101010 10000 0 0000000000000 + RDPR_strand_status 10 rd:5 101010 11010 0 0000000000000 + RDPR_ver 10 rd:5 101010 11111 0 0000000000000 + ] + RDWIM 10 rd:5 101010 ----- - ------------- } -RDPR_tnpc 10 rd:5 101010 00001 0 0000000000000 -RDPR_tstate 10 rd:5 101010 00010 0 0000000000000 -RDPR_tt 10 rd:5 101010 00011 0 0000000000000 -RDPR_tick 10 rd:5 101010 00100 0 0000000000000 -RDPR_tba 10 rd:5 101010 00101 0 0000000000000 -RDPR_pstate 10 rd:5 101010 00110 0 0000000000000 -RDPR_tl 10 rd:5 101010 00111 0 0000000000000 -RDPR_pil 10 rd:5 101010 01000 0 0000000000000 -RDPR_cwp 10 rd:5 101010 01001 0 0000000000000 -RDPR_cansave 10 rd:5 101010 01010 0 0000000000000 -RDPR_canrestore 10 rd:5 101010 01011 0 0000000000000 -RDPR_cleanwin 10 rd:5 101010 01100 0 0000000000000 -RDPR_otherwin 10 rd:5 101010 01101 0 0000000000000 -RDPR_wstate 10 rd:5 101010 01110 0 0000000000000 -RDPR_gl 10 rd:5 101010 10000 0 0000000000000 -RDPR_strand_status 10 rd:5 101010 11010 0 0000000000000 -RDPR_ver 10 rd:5 101010 11111 0 0000000000000 { WRWIM 10 00000 110010 ..... . ............. @n_r_ri @@ -203,7 +226,7 @@ WRPR_strand_status 10 11010 110010 ..... . ............. @n_r_ri { FLUSHW 10 00000 101011 00000 0 0000000000000 - RDTBR 10 rd:5 101011 00000 0 0000000000000 + RDTBR 10 rd:5 101011 ----- - ------------- } { |