microdrive: remove stuff that is now in the banker where it should be

diff --git a/Kernel/platform-zx128/devmdv.c b/Kernel/platform-zx128/devmdv.c
index 8f8cc67..db9f1be 100644 (file)
--- a/Kernel/platform-zx128/devmdv.c
+++ b/Kernel/platform-zx128/devmdv.c
@@ -43,7 +43,6 @@ static int mdv_transfer(uint8_t minor, bool is_read, uint8_t rawflag)
        irqflags_t irq;
        uint16_t block, nblock;
        uint8_t on = 0;
-       uint8_t altbank = 0;    /* Using alternate banks ? */
 
        if (rawflag == 0) {
                mdv_buf = udata.u_buf->bf_data;
@@ -60,20 +59,10 @@ static int mdv_transfer(uint8_t minor, bool is_read, uint8_t rawflag)
                mdv_page = udata.u_page;
        } else {
                /* Microdrive swap awesomeness */
+               mdv_buf = swapbase;
                nblock = swapcnt >> 9;
                block = swapblk;
-               mdv_page = swapproc->p_page;
-               mdv_buf = swapbase;
-
-               /* Platform specific magic time. We know the swapper
-                  will do I/O to/from "us" (easy) or from the
-                  other process, in which case we need to juggle
-                  banks half way */
-               if (swapproc != udata.u_ptab) {
-                       altbank = 1;
-                       mdv_buf = (uint8_t *)0xC000;
-                       mdv_page = 6;   /* Switched bank */
-               }
+               mdv_page = swappage;
        }
 
        irq = di();
@@ -90,7 +79,7 @@ static int mdv_transfer(uint8_t minor, bool is_read, uint8_t rawflag)
 
        while(nblock--) {
                mdv_sector = mdvmap[minor][block++];
-               kprintf("%d %d:%x\n", mdv_sector, mdv_page, mdv_buf);
+//             kprintf("%d %d:%x\n", mdv_sector, mdv_page, mdv_buf);
                irq = di();
                /* Shouldn't happen but in case */
                if (mdv_tick == 0)
@@ -107,11 +96,6 @@ static int mdv_transfer(uint8_t minor, bool is_read, uint8_t rawflag)
                        goto bad;
                }
                mdv_buf += 512;
-               /* Switch bank */
-               if (altbank && mdv_buf == 0x0000) {     /* Wrapped */
-                       mdv_page = swapproc->p_page;
-                       mdv_buf = (uint8_t *)0xC000;
-               }
        }
        return 0;
 bad: