| 81 | (DEFPROP STACK-GROUP-RETURN |

| 82 | "Resumes the current stack group's resumer, transmitting the value X. |

| 83 | The resumer's own resumer is not affected." |

| 84 | :DOCUMENTATION) |

| 85 | |

| 86 | (DEFPROP STACK-GROUP-RESUME |

| 87 | "Resumes SG, transmitting the value X. SG's resumer is not affected." |

| 88 | :DOCUMENTATION) |

| 89 | |

| 90 | (DEFPROP BIGNUM-TO-ARRAY |

| 91 | "Converts a bignum into an array. |

| 92 | The first argument is a bignum, the second is a fixnum. The bignum is |

| 93 | expressed in the base of the fixnum and stuffed into an appropriate art-q |

| 94 | array. The sign of the bignum is ignored." |

| 95 | :DOCUMENTATION) |

| 96 | |

| 97 | (DEFPROP ARRAY-TO-BIGNUM |

| 98 | "Converts an array into a bignum. |

| 99 | The first argument is an art-q array, the second is a fixnum and the |

| 100 | third is the sign bit (0 or 1). The art-q array is interpreted as a bignum |

| 101 | expressed in the base of the fixnum and converted into that bignum. It is |

| 102 | given the third argument as its sign. This is the inverse of BIGNUM-TO-ARRAY." |

| 103 | :DOCUMENTATION) |