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Adds min(), minu(), max(), maxu()

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Kwarde
2025-07-10 11:58:29 +02:00
parent 34d7fee8dc
commit e0bd8bcdbd
2 changed files with 243 additions and 0 deletions
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56
src/core.asm
View File

@@ -6,6 +6,10 @@ section .text
global isupper
global tolower
global toupper
global min
global minu
global max
global maxu
;----- exit(exit_code) -----;
; Exits the program with given exit code
@@ -83,3 +87,55 @@ toupper:
mov rax, rdi
sub rax, 32
ret
;----- min(num1, num2) -----;
; Takes two signed integers, returns lowest
; Return value: Lowest signed integer
; Used registers:
; rax* (ret) lowest signed int
; rdi (arg) num1
; rsi (arg) num2
min:
mov rax, rsi
cmp rdi, rsi
cmovl rax, rdi
ret
;----- minu(num1, num2) -----;
; Takes two unsigned integers, returns lowest
; Return value: Lowest unsigned int
; Used registers:
; rax* (ret) lowest unsigned int
; rdi (arg) num1
; rsi (arg) num2
minu:
mov rax, rsi
cmp rdi, rsi
cmovb rax, rdi
ret
;----- max(num1, num2) -----;
; Takes two signed integers, returns highest
; Return value: Highest signed int
; Used registers:
; rax* (ret) highest signed int
; rdi (arg) num1
; rsi (arg) num2
max:
mov rax, rsi
cmp rdi, rsi
cmovg rax, rdi
ret
;----- maxu(num1, num2) -----;
; Takes two unsigned integers, returns highest
; Return value: Highest unsigned int
; Used registers:
; rax* (ret) highest unsigned int
; rdi (arg) num1
; rsi (arg) num2
maxu:
mov rax, rsi
cmp rdi, rsi
cmova rax, rdi
ret

187
src/tests.asm
View File

@@ -6,6 +6,10 @@ extern islower
extern isupper
extern tolower
extern toupper
extern min
extern minu
extern max
extern maxu
; console.asm
extern print
extern puts
@@ -36,6 +40,8 @@ section .rodata
TEST_tolower equ 1
TEST_toupper equ 1
TEST_strcmp equ 1
TEST_min equ 1 ;includes minu
TEST_max equ 1 ;includes maxu
str1 db "Hello, world!",EOS
str2 db "Hello, World!",EOS
@@ -141,6 +147,27 @@ section .rodata
strcmp5 db TAB,"- strclr(strBuff1, 32)",NL,TAB,"strcmp(strBuff1, str1): %d",NL,TAB,"strcmp(str1, strBuff1): %d",NL,EOS
strcmp6 db TAB,"strcmp(str1, str5): %d",NL,EOS
; min() / minu()
msgMin db NL,"TEST min(), minu()",NL,EOS
min1 db TAB,"min(15, 30):",NL,TAB,TAB,"%d (%x)",NL,EOS
min2 db TAB,"min(-15, -30):",NL,TAB,TAB,"%d (%x)",NL,EOS
min3 db TAB,"min(-1, 0):",NL,TAB,TAB,"%d (%x)",NL,EOS
min4 db TAB,"min(0xFFFFFFFF, -4294967295):",NL,TAB,TAB,"%d (%x)",NL,EOS
minu1 db TAB,"minu(15, 30):",NL,TAB,TAB,"%d (%x)",NL,EOS
minu2 db TAB,"minu(-15, -30):",NL,TAB,TAB,"%d (%x)",NL,EOS
minu3 db TAB,"minu(-1, 0):",NL,TAB,TAB,"%d (%x)",NL,EOS
minu4 db TAB,"minu(0xFFFFFFFF, -4294967295):",NL,TAB,TAB,"%d (%x)",NL,EOS
; max() / maxu()
msgMax db NL,"TEST max(), maxu()",NL,EOS
max1 db TAB,"max(15, 30):",NL,TAB,TAB,"%d (%x)",NL,EOS
max2 db TAB,"max(-15, -30):",NL,TAB,TAB,"%d (%x)",NL,EOS
max3 db TAB,"max(-1, 0):",NL,TAB,TAB,"%d (%x)",NL,EOS
max4 db TAB,"max(0xFFFFFFFF, -4294967295):",NL,TAB,TAB,"%d (%x)",NL,EOS
maxu1 db TAB,"maxu(15, 30):",NL,TAB,TAB,"%d (%x)",NL,EOS
maxu2 db TAB,"maxu(-15, -30):",NL,TAB,TAB,"%d (%x)",NL,EOS
maxu3 db TAB,"maxu(-1, 0):",NL,TAB,TAB,"%d (%x)",NL,EOS
maxu4 db TAB,"maxu(0xFFFFFFFF, -4294967295):",NL,TAB,TAB,"%d (%x)",NL,EOS
section .data
section .bss
@@ -698,6 +725,166 @@ _start:
call printf
%endif
;---
;--- min() / minu()
;---
%if TEST_min
lea rdi, [rel msgMin]
call print
; TEST 1
mov rdi, 15
mov rsi, 30
call min
lea rdi, [rel min1]
mov rsi, rax
mov rdx, rax
call printf
; TEST 2
mov rdi, -15
mov rsi, -30
call min
lea rdi, [rel min2]
mov rsi, rax
mov rdx, rax
call printf
; TEST 3
mov rdi, -1
xor rsi, rsi
call min
lea rdi, [rel min3]
mov rsi, rax
mov rdx, rax
call printf
; TEST 4
mov rdi, 0xFFFFFFFF
mov rsi, -4294967295
call min
lea rdi, [rel min4]
mov rsi, rax
mov rdx, rax
call printf
; TEST 1
mov rdi, 15
mov rsi, 30
call minu
lea rdi, [rel minu1]
mov rsi, rax
mov rdx, rax
call printf
; TEST 2
mov rdi, -15
mov rsi, -30
call minu
lea rdi, [rel minu2]
mov rsi, rax
mov rdx, rax
call printf
; TEST 3
mov rdi, -1
xor rsi, rsi
call minu
lea rdi, [rel minu3]
mov rsi, rax
mov rdx, rax
call printf
; TEST 4
mov rdi, 0xFFFFFFFF
mov rsi, -4294967295
call minu
lea rdi, [rel minu4]
mov rsi, rax
mov rdx, rax
call printf
%endif
;---
;--- max() / maxu()
;---
%if TEST_max
lea rdi, [rel msgMin]
call print
; TEST 1
mov rdi, 15
mov rsi, 30
call max
lea rdi, [rel max1]
mov rsi, rax
mov rdx, rax
call printf
; TEST 2
mov rdi, -15
mov rsi, -30
call max
lea rdi, [rel max2]
mov rsi, rax
mov rdx, rax
call printf
; TEST 3
mov rdi, -1
xor rsi, rsi
call max
lea rdi, [rel max3]
mov rsi, rax
mov rdx, rax
call printf
; TEST 4
mov rdi, 0xFFFFFFFF
mov rsi, -4294967295
call max
lea rdi, [rel max4]
mov rsi, rax
mov rdx, rax
call printf
; TEST 1
mov rdi, 15
mov rsi, 30
call maxu
lea rdi, [rel maxu1]
mov rsi, rax
mov rdx, rax
call printf
; TEST 2
mov rdi, -15
mov rsi, -30
call maxu
lea rdi, [rel maxu2]
mov rsi, rax
mov rdx, rax
call printf
; TEST 3
mov rdi, -1
xor rsi, rsi
call maxu
lea rdi, [rel maxu3]
mov rsi, rax
mov rdx, rax
call printf
; TEST 4
mov rdi, 0xFFFFFFFF
mov rsi, -4294967295
call maxu
lea rdi, [rel maxu4]
mov rsi, rax
mov rdx, rax
call printf
%endif
;---
;--- exit()
;---