Initial version of atoi

Functions to convert strings to integers in various bases

strint.asm

@@ -7,24 +7,25 @@
 ; Clobbers:
 ; flags
 ; r3 - last character read
-pub fn_atoi:
+; Note: Unless the input is "0", tail-calls into a base-specific specialization.
+pub atoi:
 load_8 r3, [r1]
 cmp r3, 0x30 ; '0'
-jne fn_atoi_dec ; No prefix, parse decimal
+jne atoi_dec ; No prefix, parse decimal
 add r1, r1, 1
 load_8 r3, [r1] ; From "boxBOX", or an octal digit
 cmp r3, 0x30 ; '0'
 jl atoi_badprefix
 cmp r3, 0x37 ; '7'
-jle fn_atoi_oct
+jle atoi_oct
 add r1, r1, 1 ; Not octal; 2-byte prefix 
 and r3, r3, 0x5f ; to uppercase
 cmp r3, 0x42 ; 'B'
-je fn_atoi_bin
+je atoi_bin
 cmp r3, 0x4F ; 'O'
-je fn_atoi_oct
+je atoi_oct
 cmp r3, 0x58 ; 'X'
-je fn_atoi_hex
+je atoi_hex
 
 ; not a valid prefix, but we did see a zero
 atoi_badprefix:
@@ -43,7 +44,7 @@ jmp r13
 ; Clobbers:
 ; flags
 ; r3 - last character read
-pub fn_atoi_dec:
+pub atoi_dec:
 mov r2, r1
 mov r1, 0
 atoi_dec_loop:
@@ -69,7 +70,7 @@ jmp atoi_dec_loop
 ; Clobbers:
 ; flags
 ; r3 - last character read
-pub fn_atoi_bin:
+pub atoi_bin:
 mov r2, r1
 mov r1, 0
 atoi_bin_loop:
@@ -93,7 +94,7 @@ jmp atoi_bin_loop
 ; Clobbers:
 ; flags
 ; r3 - last character read
-pub fn_atoi_oct:
+pub atoi_oct:
 mov r2, r1
 mov r1, 0
 atoi_oct_loop:
@@ -117,7 +118,7 @@ jmp atoi_oct_loop
 ; Clobbers:
 ; flags
 ; r3 - last character read
-pub fn_atoi_hex:
+pub atoi_hex:
 mov r2, r1
 mov r1, 0
 atoi_hex_loop:

strint_test.asm

@@ -56,7 +56,7 @@ add r1, r2, 4
 mov r10, r3
 push r13
 mov r13, atoi_test_ret
-jmp stdlib.strint.fn_atoi
+jmp stdlib.strint.atoi
 atoi_test_ret:
 pop r13
 cmp r1, r9