Apply agreed naming conventions

This commit is contained in:
PleegWat
2026-09-06 16:13:40 +02:00
parent 6f7ad3aa4b
commit 304fe54833
3 changed files with 41 additions and 41 deletions
+1 -1
View File
@@ -3,7 +3,7 @@ pub include imath
pub include array
pub include console
pub include mem
pub include strint
pub include string_to_int
; Needs to be last!
pub include LUTs
+38 -38
View File
@@ -4,7 +4,7 @@
; r3 - Character being parsed
; r4 - Set to -1 if the input is negative
; Convert string to integer
; Convert string to integer (akin to libc atoi(), strotoi())
; Arguments:
; r1 - Pointer to string
; Result:
@@ -15,30 +15,30 @@
; r3 - last character read
; r4 - Negative marker
; Note: Unless the input is "0", tail-calls into a base-specific specialization.
pub atoi:
pub auto:
mov r2, r1
mov r1, 0
mov r4, 0
load_8 r3, [r2]
cmp r3, 0x2D ; '-'
jne atoi_positive
jne auto_positive
sub r4, zr, 1 ; Set r4 to -1
add r2, r2, 1
atoi_positive:
auto_positive:
load_16 r3, [r2] ; 2-byte prefix "0b", "0o", "0x", etc.
or r3, r3, 0x20 ; 2nd char to lower case
add r2, r2, 2
cmp r3, 0x3062 ; "0b"
je atoi_bin_loop
je bin_loop
cmp r3, 0x306F ; "0o"
je atoi_oct_loop
je oct_loop
cmp r3, 0x3078 ; "0x"
je atoi_hex_loop
je hex_loop
sub r2, r2, 2 ; no matching prefix, move pointer back
jmp atoi_dec_loop
jmp dec_loop
; Epilogue
atoi_done:
done:
add r1, r1, r4 ; If r4 is -1, negate r1. Else it's 0 and no effect.
xor r1, r1, r4
mov flags, 0 ; No error
@@ -54,27 +54,27 @@ jmp r13
; flags
; r3 - last character read
; r4 - Negative marker
pub atoi_dec:
pub dec:
mov r2, r1
mov r1, 0
mov r4, 0
load_8 r3, [r2]
cmp r3, 0x2D ; '-'
jne atoi_dec_positive
jne dec_positive
sub r4, zr, 1 ; Set r4 to -1
add r2, r2, 1
atoi_dec_loop:
dec_loop:
load_8 r3, [r2]
atoi_dec_positive:
dec_positive:
sub r3, r3, 0x30 ; '0'
cmp r3, 9
ja atoi_done
ja done
add r2, r2, 1
lsl flags, r1, 2 ; Use flags to help multiply by 10
add r1, r1, flags
lsl r1, r1, 1
add r1, r1, r3
jmp atoi_dec_loop
jmp dec_loop
; Convert binary string to integer
; Arguments:
@@ -86,30 +86,30 @@ jmp atoi_dec_loop
; flags
; r3 - last character read
; r4 - Negative marker
pub atoi_bin:
pub bin:
mov r2, r1
mov r1, 0
mov r4, 0
load_8 r3, [r2]
cmp r3, 0x2D ; '-'
jne atoi_bin_positive
jne bin_positive
sub r4, zr, 1 ; Set r4 to -1
add r2, r2, 1
atoi_bin_positive:
bin_positive:
load_16 r3, [r2] ; check for prefix
or r3, r3, 0x20 ; 2nd char to lower case
cmp r3, 0x3062 ; "0b"
jne atoi_bin_loop
jne bin_loop
add r2, r2, 2
atoi_bin_loop:
bin_loop:
load_8 r3, [r2]
sub r3, r3, 0x30 ; '0'
cmp r3, 1
ja atoi_done
ja done
add r2, r2, 1
lsl r1, r1, 1
add r1, r1, r3
jmp atoi_bin_loop
jmp bin_loop
; Convert octal string to integer
; Arguments:
@@ -121,30 +121,30 @@ jmp atoi_bin_loop
; flags
; r3 - last character read
; r4 - Negative marker
pub atoi_oct:
pub oct:
mov r2, r1
mov r1, 0
mov r4, 0
load_8 r3, [r2]
cmp r3, 0x2D ; '-'
jne atoi_oct_positive
jne oct_positive
sub r4, zr, 1 ; Set r4 to -1
add r2, r2, 1
atoi_oct_positive:
oct_positive:
load_16 r3, [r2] ; check for prefix
or r3, r3, 0x20 ; 2nd char to lower case
cmp r3, 0x306F ; "0o"
jne atoi_oct_loop
jne oct_loop
add r2, r2, 2
atoi_oct_loop:
oct_loop:
load_8 r3, [r2]
sub r3, r3, 0x30 ; '0'
cmp r3, 7
ja atoi_done
ja done
add r2, r2, 1
lsl r1, r1, 3
add r1, r1, r3
jmp atoi_oct_loop
jmp oct_loop
; Convert hexadecimal string to integer
; Arguments:
@@ -156,33 +156,33 @@ jmp atoi_oct_loop
; flags
; r3 - last character read
; r4 - Negative marker
pub atoi_hex:
pub hex:
mov r2, r1
mov r1, 0
mov r4, 0
load_8 r3, [r2]
cmp r3, 0x2D ; '-'
jne atoi_hex_positive
jne hex_positive
sub r4, zr, 1 ; Set r4 to -1
add r2, r2, 1
atoi_hex_positive:
hex_positive:
load_16 r3, [r2] ; check for prefix
or r3, r3, 0x20 ; 2nd char to lower case
cmp r3, 0x3078 ; "0x"
jne atoi_hex_loop
jne hex_loop
add r2, r2, 2
atoi_hex_loop:
hex_loop:
load_8 r3, [r2]
sub r3, r3, 0x30 ; '0'
cmp r3, 10
jb atoi_hex_add
jb hex_add
sub r3, r3, 0x11 ; 'A' - '0'
and r3, r3, 0xdf ; to lower case
cmp r3, 5 ; 0-5: 6 letters
ja atoi_done
ja done
add r3, r3, 10 ; Adjust for digits below
atoi_hex_add:
hex_add:
add r2, r2, 1
lsl r1, r1, 4
add r1, r1, r3
jmp atoi_hex_loop
jmp hex_loop
@@ -1,4 +1,4 @@
; test harness for strint.atoi
; test harness for string_to_int
; Registers:
; r8 - test address
; r9 - expected result
@@ -10,7 +10,7 @@ next_test:
; Set up arguments and run test
add r1, r8, 5 ; Start of test string
mov r13, atoi_test_ret
jmp stdlib.strint.atoi
jmp stdlib.string_to_int.auto
atoi_test_ret:
; Load reference data