lxdream 0.9.1| filename | src/sh4/sh4x86.c |
| changeset | 626:a010e30a30e9 |
| prev | 604:1024c3a9cb88 |
| next | 669:ab344e42bca9 |
| author | nkeynes |
| date | Fri Feb 08 00:06:56 2008 +0000 (12 years ago) |
| permissions | -rw-r--r-- |
| last change | Fix LDS/STS to FPUL/FPSCR to check the FPU disabled bit. Fixes the linux 2.4.0-test8 kernel boot (this wasn't exactly very well documented in the original manual) |
| file | annotate | diff | log | raw |
1.1 --- a/src/sh4/sh4x86.c Tue Jan 22 11:30:37 2008 +00001.2 +++ b/src/sh4/sh4x86.c Fri Feb 08 00:06:56 2008 +00001.3 @@ -761,6 +761,7 @@1.4 case 0x5:1.5 { /* STS FPUL, Rn */1.6 uint32_t Rn = ((ir>>8)&0xF);1.7 + check_fpuen();1.8 load_spreg( R_EAX, R_FPUL );1.9 store_reg( R_EAX, Rn );1.10 }1.11 @@ -768,6 +769,7 @@1.12 case 0x6:1.13 { /* STS FPSCR, Rn */1.14 uint32_t Rn = ((ir>>8)&0xF);1.15 + check_fpuen();1.16 load_spreg( R_EAX, R_FPSCR );1.17 store_reg( R_EAX, Rn );1.18 }1.19 @@ -1441,6 +1443,7 @@1.20 case 0x5:1.21 { /* STS.L FPUL, @-Rn */1.22 uint32_t Rn = ((ir>>8)&0xF);1.23 + check_fpuen();1.24 load_reg( R_EAX, Rn );1.25 check_walign32( R_EAX );1.26 ADD_imm8s_r32( -4, R_EAX );1.27 @@ -1454,6 +1457,7 @@1.28 case 0x6:1.29 { /* STS.L FPSCR, @-Rn */1.30 uint32_t Rn = ((ir>>8)&0xF);1.31 + check_fpuen();1.32 load_reg( R_EAX, Rn );1.33 check_walign32( R_EAX );1.34 ADD_imm8s_r32( -4, R_EAX );1.35 @@ -1702,6 +1706,7 @@1.36 case 0x5:1.37 { /* LDS.L @Rm+, FPUL */1.38 uint32_t Rm = ((ir>>8)&0xF);1.39 + check_fpuen();1.40 load_reg( R_EAX, Rm );1.41 check_ralign32( R_EAX );1.42 MMU_TRANSLATE_READ( R_EAX );1.43 @@ -1714,6 +1719,7 @@1.44 case 0x6:1.45 { /* LDS.L @Rm+, FPSCR */1.46 uint32_t Rm = ((ir>>8)&0xF);1.47 + check_fpuen();1.48 load_reg( R_EAX, Rm );1.49 check_ralign32( R_EAX );1.50 MMU_TRANSLATE_READ( R_EAX );1.51 @@ -1939,6 +1945,7 @@1.52 case 0x5:1.53 { /* LDS Rm, FPUL */1.54 uint32_t Rm = ((ir>>8)&0xF);1.55 + check_fpuen();1.56 load_reg( R_EAX, Rm );1.57 store_spreg( R_EAX, R_FPUL );1.58 }1.59 @@ -1946,6 +1953,7 @@1.60 case 0x6:1.61 { /* LDS Rm, FPSCR */1.62 uint32_t Rm = ((ir>>8)&0xF);1.63 + check_fpuen();1.64 load_reg( R_EAX, Rm );1.65 store_spreg( R_EAX, R_FPSCR );1.66 update_fr_bank( R_EAX );
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