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Move math helpers to lj_vmmath.c. Add missing log2/exp2 for Symbian.

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This commit is contained in:
Mike Pall
2011-06-03 17:12:46 +02:00
parent 77bb8de93d
commit eec28aa9fd
14 changed files with 160 additions and 119 deletions
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16
src/buildvm_x86.dasc
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@@ -2028,7 +2028,7 @@ static void build_subroutines(BuildCtx *ctx, int cmov, int sse)
}
|.ffunc_n math_log, fldln2; fyl2x; jmp ->fff_resn
|.ffunc_n math_log10, fldlg2; fyl2x; jmp ->fff_resn
|.ffunc_n math_exp; call ->vm_exp; jmp ->fff_resn
|.ffunc_n math_exp; call ->vm_exp_x87; jmp ->fff_resn
|
|.ffunc_n math_sin; fsin; jmp ->fff_resn
|.ffunc_n math_cos; fcos; jmp ->fff_resn
@@ -2055,7 +2055,7 @@ static void build_subroutines(BuildCtx *ctx, int cmov, int sse)
| .endif
||}
| mov RB, BASE
| call extern lj_wrapper_ .. func
| call extern lj_vm_ .. func
| mov BASE, RB
| .if X64
| jmp ->fff_resxmm0
@@ -3169,9 +3169,9 @@ static void build_subroutines(BuildCtx *ctx, int cmov, int sse)
|// FP exponentiation e^x and 2^x. Called by math.exp fast function and
|// from JIT code. Arg/ret on x87 stack. No int/xmm regs modified.
|// Caveat: needs 3 slots on x87 stack!
|->vm_exp:
|->vm_exp_x87:
| fldl2e; fmulp st1 // e^x ==> 2^(x*log2(e))
|->vm_exp2:
|->vm_exp2_x87:
| .if X64WIN
| .define expscratch, dword [rsp+8] // Use scratch area.
| .elif X64
@@ -3444,11 +3444,11 @@ static void build_subroutines(BuildCtx *ctx, int cmov, int sse)
| cmp fpmop, 5; ja >2
| .if X64WIN; pop rax; .endif
| je >1
| call ->vm_exp
| call ->vm_exp_x87
| .if X64WIN; push rax; .endif
| jmp >7
|1:
| call ->vm_exp2
| call ->vm_exp2_x87
| .if X64WIN; push rax; .endif
| jmp >7
|2: ; cmp fpmop, 7; je >1; ja >2
@@ -3487,7 +3487,7 @@ static void build_subroutines(BuildCtx *ctx, int cmov, int sse)
| fld qword [esp+4]
| ret
|2: ; fld qword [esp+4]
| cmp fpmop, 5; jb ->vm_exp; je ->vm_exp2
| cmp fpmop, 5; jb ->vm_exp_x87; je ->vm_exp2_x87
|2: ; cmp fpmop, 7; je >1; ja >2
| fldln2; fxch; fyl2x; ret
|1: ; fld1; fxch; fyl2x; ret
@@ -3505,7 +3505,7 @@ static void build_subroutines(BuildCtx *ctx, int cmov, int sse)
| cmp fpmop, 1; jb ->vm_floor; je ->vm_ceil
| cmp fpmop, 3; jb ->vm_trunc; ja >2
| fsqrt; ret
|2: ; cmp fpmop, 5; jb ->vm_exp; je ->vm_exp2
|2: ; cmp fpmop, 5; jb ->vm_exp_x87; je ->vm_exp2_x87
| cmp fpmop, 7; je >1; ja >2
| fldln2; fxch; fyl2x; ret
|1: ; fld1; fxch; fyl2x; ret