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|
; Zilog eZ80 ANSI C Compiler Release 3.4
; -optsize -nomodsect -peephole -globalopt -localcse
; -const=ROM
FILE "..\SINH.C"
.assume ADL=1
SEGMENT CODE
; 1 /************************************************************************/
; 2 /* */
; 3 /* Copyright (C)1987-2008 by */
; 4 /* Zilog, Inc. */
; 5 /* */
; 6 /* San Jose, California */
; 7 /* */
; 8 /************************************************************************/
; 9 /*
; 10 sinh(arg) returns the hyperbolic sine of its floating-
; 11 point argument.
; 12
; 13 The exponential function is called for arguments
; 14 greater in magnitude than 0.5.
; 15
; 16 A series is used for arguments smaller in magnitude than 0.5.
; 17 The coefficients are #2029 from Hart & Cheney. (20.36D)
; 18
; 19 cosh(arg) is computed from the exponential function for
; 20 all arguments.
; 21 */
; 22
; 23 #include <math.h>
; 24
; 25 #define p0 -0.630767364049772e+6
; 26 #define p1 -0.899127202203951e+5
; 27 #define p2 -0.289421135598956e+4
; 28 #define p3 -0.263056321339750e+2
; 29 #define q0 -0.630767364049772e+6
; 30 #define q1 0.152151737879002e+5
; 31 #define q2 -0.173678953558234e+3
; 32
; 33 double sinh(double arg) {
_sinh:
LD HL,-24
CALL __frameset
; 34 double temp, argsq;
; 35 register int sign;
; 36
; 37 sign = 1;
LD BC,1
LD (IX+-11),BC
; 38 if(arg < 0) {
LD HL,(IX+6)
LD E,(IX+9)
LD BC,0
XOR A,A
CALL __fcmp
JP P,L_4
; 39 arg = -arg;
LD BC,(IX+6)
LD A,(IX+9)
CALL __fneg
LD (IX+6),BC
LD (IX+9),A
; 40 sign = -1;
LD BC,16777215
LD (IX+-11),BC
; 41 }
L_4:
; 42
; 43 if(arg > 21.) {
LD HL,11010048
LD E,65
LD BC,(IX+6)
LD A,(IX+9)
CALL __fcmp
JP P,L_6
; 44 temp = exp(arg)/2;
LD C,(IX+9)
LD B,0
PUSH BC
LD BC,(IX+6)
PUSH BC
CALL _exp
POP BC
POP BC
LD A,E
LD BC,HL
OR A,A
SBC HL,HL
LD E,64
CALL __fdiv
LD (IX+-4),BC
LD (IX+-1),A
; 45 if (sign>0)
LD BC,(IX+-11)
OR A,A
SBC HL,HL
OR A,A
SBC HL,BC
CALL __setflag
JP P,L_2
; 46 return(temp);
LD HL,(IX+-4)
LD E,(IX+-1)
JR L_8
; 47 else
L_2:
; 48 return(-temp);
LD BC,(IX+-4)
LD A,(IX+-1)
CALL __fneg
LD E,A
LD HL,BC
JR L_8
; 49 }
L_6:
OR A,A
; 50
; 51 if(arg > 0.5) {
SBC HL,HL
LD E,63
LD BC,(IX+6)
LD A,(IX+9)
CALL __fcmp
JP P,L_7
; 52 return(sign*(exp(arg) - exp(-arg))/2);
LD C,(IX+9)
LD B,0
PUSH BC
LD BC,(IX+6)
PUSH BC
CALL _exp
POP BC
POP BC
LD BC,(IX+6)
LD A,(IX+9)
CALL __fneg
LD (IX+-14),HL ; spill
LD (IX+-17),BC ; spill
LD HL,(IX+-14) ; unspill
LD C,A
LD B,0
PUSH BC
LD (IX+-14),HL ; spill
LD HL,(IX+-17) ; unspill
PUSH HL
LD HL,(IX+-14) ; unspill
LD BC,HL
LD A,E
LD (IX+-23),BC
LD (IX+-24),A
CALL _exp
LD BC,(IX+-23)
LD A,(IX+-24)
POP IY
POP IY
CALL __fsub
LD (IX+-20),BC
LD BC,(IX+-11)
LD H,A
CALL __itol
CALL __ltof
LD E,A
LD A,H
LD HL,BC
LD BC,(IX+-20)
CALL __fmul
OR A,A
SBC HL,HL
LD E,64
CALL __fdiv
LD E,A
LD HL,BC
JR L_8
; 53 }
L_7:
; 54
; 55 argsq = arg*arg;
LD HL,(IX+6)
LD E,(IX+9)
LD BC,(IX+6)
LD A,(IX+9)
CALL __fmul
LD (IX+-8),BC
LD (IX+-5),A
; 56 temp = (((p3*argsq+p2)*argsq+p1)*argsq+p0)*arg;
LD HL,13791727
LD E,193
CALL __fmul
LD HL,3466082
LD E,197
CALL __fadd
LD HL,(IX+-8)
LD E,(IX+-5)
CALL __fmul
LD HL,11508828
LD E,199
CALL __fadd
LD HL,(IX+-8)
LD E,(IX+-5)
CALL __fmul
LD HL,1703670
LD E,201
CALL __fadd
LD HL,(IX+6)
LD E,(IX+9)
CALL __fmul
LD (IX+-4),BC
LD (IX+-1),A
; 57 temp /= (((argsq+q2)*argsq+q1)*argsq+q0);
LD BC,(IX+-8)
LD A,(IX+-5)
LD HL,2993616
LD E,195
CALL __fadd
LD HL,(IX+-8)
LD E,(IX+-5)
CALL __fmul
LD HL,7191730
LD E,70
CALL __fadd
LD HL,(IX+-8)
LD E,(IX+-5)
CALL __fmul
LD HL,1703670
LD E,201
CALL __fadd
LD E,A
LD A,(IX+-1)
LD HL,BC
LD BC,(IX+-4)
CALL __fdiv
LD (IX+-4),BC
LD (IX+-1),A
; 58 return(sign*temp);
LD BC,(IX+-11)
CALL __itol
CALL __ltof
LD HL,(IX+-4)
LD E,(IX+-1)
CALL __fmul
LD E,A
LD HL,BC
; 59 }
L_8:
LD SP,IX
POP IX
RET
;**************************** _sinh ***************************
;Name Addr/Register Size Type
;_exp IMPORT ----- function
;sign IX-11 3 variable
;argsq IX-8 4 variable
;temp IX-4 4 variable
;arg IX+6 4 parameter
; Stack Frame Size: 36 (bytes)
; Spill Code: 0 (instruction)
; 60
; 61 double cosh(double arg) {
_cosh:
LD HL,-4
CALL __frameset
; 62 double val;
; 63
; 64 if(arg < 0) {
LD HL,(IX+6)
LD E,(IX+9)
LD BC,0
XOR A,A
CALL __fcmp
JP P,L_10
; 65 arg = -arg;
LD BC,(IX+6)
LD A,(IX+9)
CALL __fneg
LD (IX+6),BC
LD (IX+9),A
; 66 }
L_10:
; 67
; 68 val = exp(arg);
LD C,(IX+9)
LD B,0
PUSH BC
LD BC,(IX+6)
PUSH BC
CALL _exp
POP BC
POP BC
LD (IX+-4),HL
LD (IX+-1),E
; 69
; 70 if(arg > 21.) {
LD E,65
LD BC,(IX+6)
LD A,(IX+9)
LD HL,11010048
CALL __fcmp
JP P,L_12
OR A,A
; 71 return(val/2);
SBC HL,HL
LD E,64
LD BC,(IX+-4)
LD A,(IX+-1)
CALL __fdiv
LD E,A
LD HL,BC
JR L_13
; 72 }
L_12:
; 73
; 74 val += exp(-arg);
LD BC,(IX+6)
LD A,(IX+9)
CALL __fneg
LD DE,BC
LD C,A
LD B,0
PUSH BC
PUSH DE
CALL _exp
POP BC
POP BC
LD A,E
LD BC,HL
LD HL,(IX+-4)
LD E,(IX+-1)
CALL __fadd
LD (IX+-4),BC
LD (IX+-1),A
OR A,A
; 75 val /= 2;
SBC HL,HL
LD E,64
CALL __fdiv
LD (IX+-4),BC
LD (IX+-1),A
; 76 return(val);
LD E,(IX+-1)
LD HL,BC
; 77 }
L_13:
LD SP,IX
POP IX
RET
;**************************** _cosh ***************************
;Name Addr/Register Size Type
;_exp IMPORT ----- function
;val IX-4 4 variable
;arg IX+6 4 parameter
; Stack Frame Size: 16 (bytes)
; Spill Code: 0 (instruction)
XREF _exp:ROM
XREF __fadd:ROM
XREF __fsub:ROM
XREF __fmul:ROM
XREF __fdiv:ROM
XREF __fneg:ROM
XREF __fcmp:ROM
XREF __ltof:ROM
XREF __itol:ROM
XREF __frameset:ROM
XREF __setflag:ROM
XDEF _cosh
XDEF _sinh
END
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