noexe xdef _ppc_c2p_line ; convert chunky line to planar ; r3 = line # ; r4 = src ptr ; r5 = dest bitmap ; r6 = (SCREENWIDTH+31)>>5 (# cells to convert per line per plane) ; ; .align 4 _ppc_c2p_line: addi r1,r1,-36 ;;; stswi r13,r1,0 # save registers stw r13,0(r1) stw r14,4(r1) stw r15,8(r1) stw r16,12(r1) stw r17,16(r1) stw r18,20(r1) stw r19,24(r1) stw r20,28(r1) stw r21,32(r1) mtctr r6 # ctr = number of loops lhz r6,0(r5) # bm_BytesPerRow mullw r3,r3,r6 # offset in BitPlane of line addi r5,r5,12 # bm_Planes[1] lswi r6,r5,28 # BP2-8 lwz r5,-4(r5) # BP1 c2p_loop: ;;; lswi r13,r4,0 # next 8 longs lwz r13,0(r4) lwz r14,4(r4) lwz r15,8(r4) lwz r16,12(r4) lwz r17,16(r4) lwz r18,20(r4) lwz r19,24(r4) lwz r20,28(r4) rlwimi r0,r13,0,0,0 # A7 rlwimi r0,r13,7,1,1 # B7 rlwimi r0,r13,14,2,2 # C7 rlwimi r0,r13,21,3,3 # D7 rlwimi r0,r14,28,4,4 # E7 rlwimi r0,r14,3,5,5 # F7 rlwimi r0,r14,10,6,6 # G7 rlwimi r0,r14,17,7,7 # H7 rlwimi r0,r15,24,8,8 # I7 rlwimi r0,r15,31,9,9 # J7 rlwimi r0,r15,6,10,10 # K7 rlwimi r0,r15,13,11,11 # L7 rlwimi r0,r16,20,12,12 # M7 rlwimi r0,r16,27,13,13 # N7 rlwimi r0,r16,2,14,14 # O7 rlwimi r0,r16,9,15,15 # P7 rlwimi r0,r17,16,16,16 # Q7 rlwimi r0,r17,23,17,17 # R7 rlwimi r0,r17,30,18,18 # S7 rlwimi r0,r17,5,19,19 # T7 rlwimi r0,r18,12,20,20 # U7 rlwimi r0,r18,19,21,21 # V7 rlwimi r0,r18,26,22,22 # W7 rlwimi r0,r18,1,23,23 # X7 rlwimi r0,r19,8,24,24 # Y7 rlwimi r0,r19,15,25,25 # Z7 rlwimi r0,r19,22,26,26 # a7 rlwimi r0,r19,29,27,27 # b7 rlwimi r0,r20,4,28,28 # c7 rlwimi r0,r20,11,29,29 # d7 rlwimi r0,r20,18,30,30 # e7 rlwimi r0,r20,25,31,31 # f7 stwx r0,r12,r3 # store to BP8+offset rlwimi r21,r13,1,0,0 # A6 rlwimi r21,r13,8,1,1 # B6 rlwimi r21,r13,15,2,2 # C6 rlwimi r21,r13,22,3,3 # D6 rlwimi r21,r14,29,4,4 # E6 rlwimi r21,r14,4,5,5 # F6 rlwimi r21,r14,11,6,6 # G6 rlwimi r21,r14,18,7,7 # H6 rlwimi r21,r15,25,8,8 # I6 rlwimi r21,r15,0,9,9 # J6 rlwimi r21,r15,7,10,10 # K6 rlwimi r21,r15,14,11,11 # L6 rlwimi r21,r16,21,12,12 # M6 rlwimi r21,r16,28,13,13 # N6 rlwimi r21,r16,3,14,14 # O6 rlwimi r21,r16,10,15,15 # P6 rlwimi r21,r17,17,16,16 # Q6 rlwimi r21,r17,24,17,17 # R6 rlwimi r21,r17,31,18,18 # S6 rlwimi r21,r17,6,19,19 # T6 rlwimi r21,r18,13,20,20 # U6 rlwimi r21,r18,20,21,21 # V6 rlwimi r21,r18,27,22,22 # W6 rlwimi r21,r18,2,23,23 # X6 rlwimi r21,r19,9,24,24 # Y6 rlwimi r21,r19,16,25,25 # Z6 rlwimi r21,r19,23,26,26 # a6 rlwimi r21,r19,30,27,27 # b6 rlwimi r21,r20,5,28,28 # c6 rlwimi r21,r20,12,29,29 # d6 rlwimi r21,r20,19,30,30 # e6 rlwimi r21,r20,26,31,31 # f6 stwx r21,r11,r3 # store to BP7+offset rlwimi r0,r13,2,0,0 # A5 rlwimi r0,r13,9,1,1 # B5 rlwimi r0,r13,16,2,2 # C5 rlwimi r0,r13,23,3,3 # D5 rlwimi r0,r14,30,4,4 # E5 rlwimi r0,r14,5,5,5 # F5 rlwimi r0,r14,12,6,6 # G5 rlwimi r0,r14,19,7,7 # H5 rlwimi r0,r15,26,8,8 # I5 rlwimi r0,r15,1,9,9 # J5 rlwimi r0,r15,8,10,10 # K5 rlwimi r0,r15,15,11,11 # L5 rlwimi r0,r16,22,12,12 # M5 rlwimi r0,r16,29,13,13 # N5 rlwimi r0,r16,4,14,14 # O5 rlwimi r0,r16,11,15,15 # P5 rlwimi r0,r17,18,16,16 # Q5 rlwimi r0,r17,25,17,17 # R5 rlwimi r0,r17,0,18,18 # S5 rlwimi r0,r17,7,19,19 # T5 rlwimi r0,r18,14,20,20 # U5 rlwimi r0,r18,21,21,21 # V5 rlwimi r0,r18,28,22,22 # W5 rlwimi r0,r18,3,23,23 # X5 rlwimi r0,r19,10,24,24 # Y5 rlwimi r0,r19,17,25,25 # Z5 rlwimi r0,r19,24,26,26 # a5 rlwimi r0,r19,31,27,27 # b5 rlwimi r0,r20,6,28,28 # c5 rlwimi r0,r20,13,29,29 # d5 rlwimi r0,r20,20,30,30 # e5 rlwimi r0,r20,27,31,31 # f5 stwx r0,r10,r3 # store to BP6+offset rlwimi r21,r13,3,0,0 # A4 rlwimi r21,r13,10,1,1 # B4 rlwimi r21,r13,17,2,2 # C4 rlwimi r21,r13,24,3,3 # D4 rlwimi r21,r14,31,4,4 # E4 rlwimi r21,r14,6,5,5 # F4 rlwimi r21,r14,13,6,6 # G4 rlwimi r21,r14,20,7,7 # H4 rlwimi r21,r15,27,8,8 # I4 rlwimi r21,r15,2,9,9 # J4 rlwimi r21,r15,9,10,10 # K4 rlwimi r21,r15,16,11,11 # L4 rlwimi r21,r16,23,12,12 # M4 rlwimi r21,r16,30,13,13 # N4 rlwimi r21,r16,5,14,14 # O4 rlwimi r21,r16,12,15,15 # P4 rlwimi r21,r17,19,16,16 # Q4 rlwimi r21,r17,26,17,17 # R4 rlwimi r21,r17,1,18,18 # S4 rlwimi r21,r17,8,19,19 # T4 rlwimi r21,r18,15,20,20 # U4 rlwimi r21,r18,22,21,21 # V4 rlwimi r21,r18,29,22,22 # W4 rlwimi r21,r18,4,23,23 # X4 rlwimi r21,r19,11,24,24 # Y4 rlwimi r21,r19,18,25,25 # Z4 rlwimi r21,r19,25,26,26 # a4 rlwimi r21,r19,0,27,27 # b4 rlwimi r21,r20,7,28,28 # c4 rlwimi r21,r20,14,29,29 # d4 rlwimi r21,r20,21,30,30 # e4 rlwimi r21,r20,28,31,31 # f4 stwx r21,r9,r3 # store to BP5+offset rlwimi r0,r13,4,0,0 # A3 rlwimi r0,r13,11,1,1 # B3 rlwimi r0,r13,18,2,2 # C3 rlwimi r0,r13,25,3,3 # D3 rlwimi r0,r14,0,4,4 # E3 rlwimi r0,r14,7,5,5 # F3 rlwimi r0,r14,14,6,6 # G3 rlwimi r0,r14,21,7,7 # H3 rlwimi r0,r15,28,8,8 # I3 rlwimi r0,r15,3,9,9 # J3 rlwimi r0,r15,10,10,10 # K3 rlwimi r0,r15,17,11,11 # L3 rlwimi r0,r16,24,12,12 # M3 rlwimi r0,r16,31,13,13 # N3 rlwimi r0,r16,6,14,14 # O3 rlwimi r0,r16,13,15,15 # P3 rlwimi r0,r17,20,16,16 # Q3 rlwimi r0,r17,27,17,17 # R3 rlwimi r0,r17,2,18,18 # S3 rlwimi r0,r17,9,19,19 # T3 rlwimi r0,r18,16,20,20 # U3 rlwimi r0,r18,23,21,21 # V3 rlwimi r0,r18,30,22,22 # W3 rlwimi r0,r18,5,23,23 # X3 rlwimi r0,r19,12,24,24 # Y3 rlwimi r0,r19,19,25,25 # Z3 rlwimi r0,r19,26,26,26 # a3 rlwimi r0,r19,1,27,27 # b3 rlwimi r0,r20,8,28,28 # c3 rlwimi r0,r20,15,29,29 # d3 rlwimi r0,r20,22,30,30 # e3 rlwimi r0,r20,29,31,31 # f3 stwx r0,r8,r3 # store to BP4+offset rlwimi r21,r13,5,0,0 # A2 rlwimi r21,r13,12,1,1 # B2 rlwimi r21,r13,19,2,2 # C2 rlwimi r21,r13,26,3,3 # D2 rlwimi r21,r14,1,4,4 # E2 rlwimi r21,r14,8,5,5 # F2 rlwimi r21,r14,15,6,6 # G2 rlwimi r21,r14,22,7,7 # H2 rlwimi r21,r15,29,8,8 # I2 rlwimi r21,r15,4,9,9 # J2 rlwimi r21,r15,11,10,10 # K2 rlwimi r21,r15,18,11,11 # L2 rlwimi r21,r16,25,12,12 # M2 rlwimi r21,r16,0,13,13 # N2 rlwimi r21,r16,7,14,14 # O2 rlwimi r21,r16,14,15,15 # P2 rlwimi r21,r17,21,16,16 # Q2 rlwimi r21,r17,28,17,17 # R2 rlwimi r21,r17,3,18,18 # S2 rlwimi r21,r17,10,19,19 # T2 rlwimi r21,r18,17,20,20 # U2 rlwimi r21,r18,24,21,21 # V2 rlwimi r21,r18,31,22,22 # W2 rlwimi r21,r18,6,23,23 # X2 rlwimi r21,r19,13,24,24 # Y2 rlwimi r21,r19,20,25,25 # Z2 rlwimi r21,r19,27,26,26 # a2 rlwimi r21,r19,2,27,27 # b2 rlwimi r21,r20,9,28,28 # c2 rlwimi r21,r20,16,29,29 # d2 rlwimi r21,r20,23,30,30 # e2 rlwimi r21,r20,30,31,31 # f2 stwx r21,r7,r3 # store to BP3+offset rlwimi r0,r13,6,0,0 # A1 rlwimi r0,r13,13,1,1 # B1 rlwimi r0,r13,20,2,2 # C1 rlwimi r0,r13,27,3,3 # D1 rlwimi r0,r14,2,4,4 # E1 rlwimi r0,r14,9,5,5 # F1 rlwimi r0,r14,16,6,6 # G1 rlwimi r0,r14,23,7,7 # H1 rlwimi r0,r15,30,8,8 # I1 rlwimi r0,r15,5,9,9 # J1 rlwimi r0,r15,12,10,10 # K1 rlwimi r0,r15,19,11,11 # L1 rlwimi r0,r16,26,12,12 # M1 rlwimi r0,r16,1,13,13 # N1 rlwimi r0,r16,8,14,14 # O1 rlwimi r0,r16,15,15,15 # P1 rlwimi r0,r17,22,16,16 # Q1 rlwimi r0,r17,29,17,17 # R1 rlwimi r0,r17,4,18,18 # S1 rlwimi r0,r17,11,19,19 # T1 rlwimi r0,r18,18,20,20 # U1 rlwimi r0,r18,25,21,21 # V1 rlwimi r0,r18,0,22,22 # W1 rlwimi r0,r18,7,23,23 # X1 rlwimi r0,r19,14,24,24 # Y1 rlwimi r0,r19,21,25,25 # Z1 rlwimi r0,r19,28,26,26 # a1 rlwimi r0,r19,3,27,27 # b1 rlwimi r0,r20,10,28,28 # c1 rlwimi r0,r20,17,29,29 # d1 rlwimi r0,r20,24,30,30 # e1 rlwimi r0,r20,31,31,31 # f1 stwx r0,r6,r3 # store to BP2+offset rlwimi r21,r13,7,0,0 # A0 rlwimi r21,r13,14,1,1 # B0 rlwimi r21,r13,21,2,2 # C0 rlwimi r21,r13,28,3,3 # D0 rlwimi r21,r14,3,4,4 # E0 rlwimi r21,r14,10,5,5 # F0 rlwimi r21,r14,17,6,6 # G0 rlwimi r21,r14,24,7,7 # H0 rlwimi r21,r15,31,8,8 # I0 rlwimi r21,r15,6,9,9 # J0 rlwimi r21,r15,13,10,10 # K0 rlwimi r21,r15,20,11,11 # L0 rlwimi r21,r16,27,12,12 # M0 rlwimi r21,r16,2,13,13 # N0 rlwimi r21,r16,9,14,14 # O0 rlwimi r21,r16,16,15,15 # P0 rlwimi r21,r17,23,16,16 # Q0 rlwimi r21,r17,30,17,17 # r21 rlwimi r21,r17,5,18,18 # S0 rlwimi r21,r17,12,19,19 # T0 rlwimi r21,r18,19,20,20 # U0 rlwimi r21,r18,26,21,21 # V0 rlwimi r21,r18,1,22,22 # W0 rlwimi r21,r18,8,23,23 # X0 rlwimi r21,r19,15,24,24 # Y0 rlwimi r21,r19,22,25,25 # Z0 rlwimi r21,r19,29,26,26 # a0 rlwimi r21,r19,4,27,27 # b0 rlwimi r21,r20,11,28,28 # c0 rlwimi r21,r20,18,29,29 # d0 rlwimi r21,r20,25,30,30 # e0 rlwimi r21,r20,0,31,31 # f0 stwx r21,r5,r3 # store to BP1+offset addi r4,r4,32 addi r3,r3,4 bdnz c2p_loop # decrement ctr, branch non-zero ;;; lswi r13,r1,0 # restore registers lwz r13,0(r1) lwz r14,4(r1) lwz r15,8(r1) lwz r16,12(r1) lwz r17,16(r1) lwz r18,20(r1) lwz r19,24(r1) lwz r20,28(r1) lwz r21,32(r1) addi r1,r1,36 blr