From: notaz Date: Wed, 22 Oct 2014 01:06:24 +0000 (+0300) Subject: megaed-sv: download memory command X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb63f62c5cd251738be58922d0b210809b04fb59;p=megadrive.git megaed-sv: download memory command --- diff --git a/megaed-sv/main.c b/megaed-sv/main.c index d5a65a9..6486a05 100644 --- a/megaed-sv/main.c +++ b/megaed-sv/main.c @@ -308,10 +308,10 @@ void vbl(void) } static int usb_read_while_ready(OsRoutine *ed, - void *buf_, int maxlen) + void *buf_, unsigned int maxlen) { u8 *buf = buf_; - int r = 0; + unsigned int r = 0; while (ed->usbRdReady() && r < maxlen) buf[r++] = ed->usbReadByte(); @@ -319,6 +319,28 @@ static int usb_read_while_ready(OsRoutine *ed, return r; } +static int usb_read(OsRoutine *ed, void *buf_, unsigned int maxlen) +{ + u8 *buf = buf_; + unsigned int r = 0; + + while (r < maxlen) + buf[r++] = ed->usbReadByte(); + + return r; +} + +static int usb_write(OsRoutine *ed, const void *buf_, unsigned int maxlen) +{ + const u8 *buf = buf_; + unsigned int r = 0; + + while (r < maxlen) + ed->usbWriteByte(buf[r++]); + + return r; +} + /* * TH = 1 : ?1CBRLDU 3-button pad return value (not read) * TH = 0 : ?0SA00DU 3-button pad return value @@ -378,6 +400,29 @@ static int do_test(OsRoutine *ed, u8 b3) return -1; } +static int do_custom(OsRoutine *ed, u8 b3) +{ + struct { + unsigned int addr; + unsigned int size; + } d; + + switch (b3) + { + case 'd': + usb_read(ed, &d, sizeof(d)); + ed->usbWriteByte('k'); + printf("sending %i bytes from %06x..\n", d.size, d.addr); + usb_write(ed, (void *)d.addr, d.size); + printf("done.\n"); + return 1; + default: + break; + } + + return -1; +} + #define MTYPE_OS 0 #define MTYPE_MD 1 #define MTYPE_SSF 2 @@ -453,8 +498,13 @@ int main() for (i = 0; i < PLANE_W * PLANE_H / 2; i++) write32(GFX_DATA_PORT, 0); + /* scroll planes */ + write32(GFX_CTRL_PORT, GFX_WRITE_VSRAM_ADDR(0)); + write32(GFX_DATA_PORT, 0); + /* note: relying on ED menu's font setup here.. */ + printf("\n"); printf("version: %02x, start_hvc: %04x\n", read8(0xa10001), start_hvc); printf("ED os/fw: %x/%x\n\n", ed->osGetOsVersion(), @@ -509,6 +559,17 @@ int main() } ed->usbWriteByte('k'); break; + case 'x': + buf[2] = ed->usbReadByte(); + ret = do_custom(ed, buf[2]); + if (ret == 1) + break; + if (ret != 0) { + d = 3; + goto bad_input; + } + ed->usbWriteByte('k'); + break; default: d = 2; goto bad_input;