| # buf = EB_PAGE_SIZE, # lpt = # avol, wbuf = mkwbuf(buf, m1, m2), ebm-vol-inv(avol), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol[bleb.leb], rofs), ¬ rofs → bleb = buffered(m) ∨ (bleb = nobuffer ∨ m2 = 0) ∧ m < # avol ∧ avol[m].mapped? ∧ m0 = # avol[m].data ⊦ ⟪wbuf_move_buf#(m, m0, rofs, avol; bleb, wbuf; err)⟫ (# wbuf.content = EB_PAGE_SIZE ∧ (bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol[bleb.leb], rofs))) |
# lpt = # avol, # buf = EB_PAGE_SIZE, wbuf = mkwbuf(buf, m1, m2), ebm-vol-inv(avol), ¬ rofs → bleb = buffered(m) ∨ (bleb = nobuffer ∨ m2 = 0) ∧ m < # avol ∧ avol[m].mapped? ∧ m0 = # avol[m].data, bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m1, m2), avol[bleb.leb], rofs) ⊦ ⟪wbuf_move_buf#(m, m0, rofs, avol; bleb, wbuf; err)⟫ (# wbuf.content = EB_PAGE_SIZE ∧ (bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol[bleb.leb], rofs)))