some formatting and comment updates

TODO

@@ -4,20 +4,20 @@ Crucial, missing things.
 ! core:      gint_switch() (driver contexts on stack; arbitrary code?)
 ! bopti:     fxcg50 version
 ! syscalls:  fxcg50 BFile calls
-! gray:      the gray engine on fx9860g
 
 Tests to run.
 * core:      run the alignment/size automated tests for memory functions
-* bopti:     more sizes, gray
-* topti:     all charsets, colors
+* topti:     all charsets
 
 Complementary elements on existing code.
+* render:    get rid of GINT_NEED_VRAM and #define vram gint_vram if you need
 * dma:       dma_memcpy() and dma_memset(), possibly requiring alignment
 * core:      use topti in the error message for missing mappings
 * core:      find the #ifdef FX9860G|FXCG50 that have a cross-platform def
 * topti:     support Unicode fonts
 * hardware:  fill in the HWMEM_FITTLB flag
 * keyboard:  think of extended functions
+* keyboard:  add an intermediate-level API with some sort of IsKeyDown()
 * cpg:       spread spectrum on fxcg50
 * bopti:     blending modes for monochrome bitmaps (use topti assembler)
 * display:   use more of topti's assembler in drect()
@@ -44,4 +44,3 @@ Future directions.
 * Audio playback using Martin Poupe's method
 * Serial communication [SCIF] [SCIFA]
 * USB communication [USB]
-* Driver for the watchdog timer [WDT] [SH7705]

include/gint/gray.h

@@ -64,7 +64,7 @@ void gray_stop(void);
       1325    1607       heavy       light    excellent
      --------------------------------------------------
 
-  Here are values for this version of gint;
+  Here are values for this version of gint:
 
      LIGHT    DARK    BLINKING     STRIPES       COLORS
      --------------------------------------------------

src/dma/inth.s

@@ -7,7 +7,7 @@
 .section .gint.blocks, "ax"
 .align 4
 
-/* DMA TRANSFER ENDED INTERRUPT HANDLER - BYTES */
+/* DMA TRANSFER ENDED INTERRUPT HANDLER - 28 BYTES */
 
 _inth_dma_dma0:
 	/* Clear the TE flag and DMA Enable in CHCR */

src/render-fx/bopti.c

@@ -68,7 +68,7 @@ void bopti_grid(void **layer, int rows, struct command *c)
 	   optimized by GCC into a function returning into r0,r1 which will
 	   avoid some memory accesses. */
 	pair_t  p, pret = { 0 };
-	/* Same with two pairs for the gray version */
+	/* Same with two pairs for the gray version (no optimization here) */
 	quadr_t q, qret = { 0 };
 
 	/* Monochrome version */