shell: rename seek to mptr

going to use `seek` for block devices

doc/load-run-code.md

@@ -20,7 +20,7 @@ increase a number at memory address `0xa100`. First, compile it:
 
 Now, we'll send that code to address `0xa000`:
 
-    > seek a000
+    > mptr a000
     A000
     > load 8 (resulting binary is 8 bytes long)
 
@@ -41,17 +41,17 @@ transfer was successful with:
 Good! Now, we can try to run it. Before we run it, let's peek at the value at
 `0xa100` (being RAM, it's random):
 
-    > seek a100
+    > mptr a100
     A100
     > peek
     61
 
 So, we'll expect this to become `62` after we run the code. Let's go:
 
-    > seek a000
+    > mptr a000
     A000
     > call 00 0000
-    > seek a100
+    > mptr a100
     A100
     > peek
     62

doc/shell.md

@@ -17,7 +17,7 @@ numerical arguments have to be typed in hexadecimal form, without prefix or
 suffix. Lowercase is fine. Single digit is fine for byte (not word) arguments
 smaller than `0x10`. Example calls:
 
-    seek 01ff
+    mptr 01ff
     peek 4
     load 1f
     call 00 0123
@@ -33,14 +33,14 @@ table describes those codes:
 | `02` | Badly formatted arguments |
 | `03` | Out of bounds             |
 
-## seek
+## mptr
 
 The shell has a global memory pointer (let's call it `memptr`) that is used by
 other commands. This pointer is 2 bytes long and starts at `0x0000`. To move
-it, you use the seek command with the new pointer position. The command
+it, you use the mptr command with the new pointer position. The command
 prints out the new `memptr` (just to confirm that it has run). Example:
 
-    > seek 42ff
+    > mptr 42ff
     42FF
 
 ## peek
@@ -49,7 +49,7 @@ Read memory targeted by `memptr` and prints its contents in hexadecimal form.
 This command takes one byte argument (optional, default to 1), the number of
 bytes we want to read. Example:
 
-    > seek 0040
+    > mptr 0040
     0040
     > peek 2
     ED56
@@ -83,11 +83,11 @@ return if you don't want to break your system.
 The following example works in the case where you've made yourself a jump table
 in your glue code a `jp printstr` at `0x0004`:
 
-    > seek a000
+    > mptr a000
     A000
     > load 6
     Hello\0 (you can send a null char through a terminal with CTRL+@)
-    > seek 0004
+    > mptr 0004
     0004
     > call 00 a000
     Hello> 

parts/shell.asm

@@ -42,7 +42,7 @@ SHELL_BUFSIZE		.equ	0x20
 
 ; *** VARIABLES ***
 ; Memory address that the shell is currently "pointing at" for peek, load, call
-; operations. Set with seek.
+; operations. Set with mptr.
 SHELL_MEM_PTR	.equ	SHELL_RAMSTART
 ; Used to store formatted hex values just before printing it.
 SHELL_HEX_FMT	.equ	SHELL_MEM_PTR+2
@@ -330,10 +330,10 @@ shellParseArgs:
 ;
 
 ; Set memory pointer to the specified address (word).
-; Example: seek 01fe
-shellSeekCmd:
-	.db	"seek", 0b011, 0b001, 0
-shellSeek:
+; Example: mptr 01fe
+shellMptrCmd:
+	.db	"mptr", 0b011, 0b001, 0
+shellMptr:
 	push	de
 	push	hl
 
@@ -468,5 +468,5 @@ shellCall:
 ; This table is at the very end of the file on purpose. The idea is to be able
 ; to graft extra commands easily after an include in the glue file.
 shellCmdTbl:
-	.dw shellSeekCmd, shellPeekCmd, shellLoadCmd, shellCallCmd
+	.dw shellMptrCmd, shellPeekCmd, shellLoadCmd, shellCallCmd