From 012813f07b7e769ee9b4e04701eeec05aa8a138c Mon Sep 17 00:00:00 2001
From: Ian Seyler <ian@ians-macbook-air.local>
Date: Thu, 1 May 2025 22:02:45 -0400
Subject: [PATCH] Replace signed condtional jumps

---
 src/init/acpi.asm |  4 ++--
 src/init/hpet.asm |  2 +-
 src/pure64.asm    | 10 +++++-----
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/init/acpi.asm b/src/init/acpi.asm
index cca11b1..f66d51f 100644
--- a/src/init/acpi.asm
+++ b/src/init/acpi.asm
@@ -23,7 +23,7 @@ searchingforACPI:
 	cmp rax, rbx			; Verify the Signature
 	je foundACPI
 	cmp esi, 0x000FFFFF		; Keep looking until we get here
-	jge noACPI			; ACPI tables couldn't be found, fail
+	jae noACPI			; ACPI tables couldn't be found, fail
 	jmp searchingforACPI
 
 ; Find the ACPI RSDP Structure on a UEFI system
@@ -185,7 +185,7 @@ parseAPICTable:
 
 readAPICstructures:
 	cmp ebx, ecx
-	jge parseAPICTable_done
+	jae parseAPICTable_done
 	lodsb				; APIC Structure Type
 	cmp al, 0x00			; Processor Local APIC
 	je APICapic
diff --git a/src/init/hpet.asm b/src/init/hpet.asm
index 9375141..6ad0568 100644
--- a/src/init/hpet.asm
+++ b/src/init/hpet.asm
@@ -23,7 +23,7 @@ init_hpet:
 
 	; Verify the Counter Clock Period is valid
 	cmp eax, 0x05F5E100		; 100,000,000 femtoseconds is the maximum
-	jg os_hpet_init_error
+	ja os_hpet_init_error
 	cmp eax, 0			; The Period has to be greater than 1 femtosecond
 	je os_hpet_init_error
 
diff --git a/src/pure64.asm b/src/pure64.asm
index 69595be..adb5544 100644
--- a/src/pure64.asm
+++ b/src/pure64.asm
@@ -478,12 +478,12 @@ uefi_memmap_next:
 	je uefi_memmap_end
 	mov rax, [rsi+8]
 	cmp rax, 0x100000		; Test if the Physical Address less than 0x100000
-	jl uefi_memmap_next		; If so, skip it
+	jb uefi_memmap_next		; If so, skip it
 	mov rax, [rsi]
 	cmp rax, 0			; EfiReservedMemoryType (Not usable)
 	je uefi_memmap_next
 	cmp rax, 7			; EfiConventionalMemory (Free)
-	jle uefi_memmap_usable
+	jbe uefi_memmap_usable
 	mov bl, 0
 	jmp uefi_memmap_next
 uefi_memmap_usable:
@@ -524,7 +524,7 @@ uefi_purge:
 	stosq
 	lodsq
 	cmp rax, 0x300
-	jl uefi_purge_remove
+	jb uefi_purge_remove
 	stosq
 	jmp uefi_purge
 uefi_purge_remove:
@@ -666,7 +666,7 @@ pde_next_range:
 	cmp rax, 0			; Check if at end of records
 	je pde_end			; Bail out if so
 	cmp rax, 0x00200000
-	jg skipfirst4mb
+	ja skipfirst4mb
 	add rax, 0x00200000		; Add 2 MiB to the base
 	sub rcx, 2			; Subtract 2 MiB from the length
 skipfirst4mb:
@@ -788,7 +788,7 @@ lfb_wc_1GB:
 	mov rax, [0x00005F00]		; Base address of video memory
 	mov rbx, 0x100000000		; Compare to 4GB
 	cmp rax, rbx
-	jle lfb_wc_end			; If less, don't set WC
+	jbe lfb_wc_end			; If less, don't set WC
 	shr rax, 27			; Quick divide
 	mov edi, 0x00003000		; Address of low PDPTEs 
 	add edi, eax			; Add the offset