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- /* Set 68881/2 floating point rounding precision */
- /* Reference: MC68881/MC68882 Floating-Point Coprocessor */
- /* User's Manual, Motorola, Prentice-Hall, 1987 (First Edition) */
- /* Pages 1-14, 2-3, 4-68. */
- /* FPcr code $80 sets the 68882 coprocessor to */
- /* rounding precision = 53 bits */
- /* rounding mode = nearest or even */
- /* all exceptions (bits 8-15) disabled */
- /* The instruction is */
- /* FMOVE.L #$80,Fcr */
- /* if the assembler will understand it. */
- .align 2
- .text
- /* set to single precision */
- .globl _sprec
- _sprec
- .word 0xf23c,0x9000,0x0000,0x0040
- rts
- /* set to double precision */
- .globl _dprec
- _dprec:
- .word 0xf23c,0x9000,0x0000,0x0080
- rts
- /* set to extended (long double) precision */
- .globl _ldprec
- _ldprec:
- .word 0xf23c,0x9000,0x0000,0x0000
- rts
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